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Long running races in 美国 with 6 or more editions.

1000 搜索结果
Count 活动 国家 跑/赛道 Time span
63 JFK 50 Mile USA 50mi 1963 - 2025
49 Western States 100 Mile Endurance Run USA 100mi 1974 - 2025
48 Lake Waramaug 100km Ultra Marathon USA 100km 1974 - 2025
47 Strolling Jim 40 Mile USA 40mi 1979 - 2025
46 Laurel Highlands 70 Mile Ultra USA 70.5mi 1980 - 2025
45 American River 50 Mile Endurance Run USA 50mi 1980 - 2025
45 Jed Smith Ultra Classic - 50 Mile Race USA 50mi 1981 - 2026
45 Old Dominion 100 Mile Endurance Run USA 100mi 1979 - 2025
45 Avalon Benefit 50-Mile Run USA 50mi 1981 - 2026
44 Le Grizz 50 Mile Ultramarathon USA 50mi 1982 - 2025
44 Wasatch Front 100 Mile USA 100mi 1980 - 2025
43 Minnesota Voyageur Trail 50 Mile Ultra USA 50mi 1982 - 2025
42 Dick Collins Firetrails 50 Mile USA 50mi 1983 - 2025
42 Tallahassee Ultra Distance Classic 50K USA 50km 1982 - 2025
42 Mountain Masochist 50 Mile Trail Run USA 50mi 1983 - 2025
42 Skyline 50k Endurance Run USA 50km 1982 - 2025
42 Leadville Trail 100 Mile USA 100mi 1983 - 2025
41 Across the Years, 24h USA 24h 1983 - 2025
40 Mt. Si 50 Miles Ultra Run USA 50mi 1983 - 2025
40 Quad Dipsea Trail Run USA 28mi 1985 - 2025
40 Ice Age Trail 50 Mile Run USA 50mi 1982 - 2025
39 Quicksilver 50 km Endurance Run USA 50km 1985 - 2025
38 Badwater Ultramarathon USA 135mi 1987 - 2025
38 Jed Smith Ultra Classic - 50 Km Race USA 50km 1987 - 2026
36 Pine Mountain 40 Miles USA 40mi 1981 - 2025
36 OTHTC High Desert 50K Ultra USA 50km 1986 - 2025
36 Mohican Trail 100 Mile USA 100mi 1990 - 2025
35 NYRR Knickerbocker 60K USA 60km 1980 - 2019
35 FANS 24 Hour Runs USA 24h 1990 - 2025
35 Angeles Crest 100 Mile USA 100mi 1986 - 2025
35 The HAT Run 50K USA 50km 1989 - 2025
35 Metropolitan 50 Mile Race USA 50mi 1971 - 2007
35 Silver State 50 km USA 50km 1988 - 2025
35 Silver State 50 Mile USA 50mi 1988 - 2025
34 Way Too Cool 50K Endurance Run USA 50km 1990 - 2025
34 Ouachita Trail 50 Mile USA 50mi 1989 - 2025
34 Arkansas Traveller 100 USA 100mi 1991 - 2025
34 Rocky Raccoon 100 Mile Trail Run USA 100mi 1993 - 2026
34 Shadow of the Giants 50K USA 50km 1990 - 2025
34 Vermont 100 Mile Endurance Race USA 100mi 1989 - 2025
34 Old Pueblo 50 Mile Endurance Run USA 50mi 1985 - 2025
34 Across the Years, 72h USA 72h 1989 - 2025
34 Across the Years, 48h USA 48h 1985 - 2025
34 Sylamore Trail 50k Run USA 50km 1993 - 2026
33 Ruth Anderson Ultra 100km USA 100km 1986 - 2019
33 Atlanta Fat Ass 50K USA 50km 1994 - 2026
33 Superior Fall Trail Races 100 Mile USA 100mi 1991 - 2025
33 Caumsett Park 50K Lloyd Neck USA 50km 2003 - 2024
33 Bulldog 50k Ultra Run USA 50km 1992 - 2025
33 Tallahassee Ultra Distance Classic 50M USA 50mi 1982 - 2025
32 Leona Divide 50 Mile Run USA 50mi 1992 - 2025
32 Full Moon Run - Midnight 50K USA 50km 1992 - 2025
32 Mountain Mist 50k USA 50km 1995 - 2026
32 Sybil Ludington 50 km Run USA 50km 1979 - 2019
32 Resurrection Pass 50 Mile Ultra Trail Race USA 50mi 1996 - 2025
32 Flatrock 50K USA 50km 1995 - 2025
32 Cornbelt Running Club 24 Hour Run USA 24h 1982 - 2025
32 Crown King Scramble 50K USA 50km 1987 - 2025
32 White River 50 Mile Trail Run USA 50mi 1993 - 2025
32 Ohlone 50K Wilderness Run USA 50km 1987 - 2019
31 Afton Trail Run 50K USA 50km 1994 - 2025
31 Bull Run Run 50 Miler USA 50mi 1993 - 2025
31 Umstead Endurance Run 100 Miles USA 100mi 1994 - 2025
31 Holiday Lake 50K++ USA 50km 1996 - 2026
30 Bethel Hill Moonlight Boogie 50 Miles USA 50mi 1995 - 2024
30 Buckeye Trail 50k USA 50km 1994 - 2025
30 Umstead Endurance Run 50 Miles USA 50mi 1995 - 2025
30 Hardrock Hundred Endurance Run USA 100mi 1992 - 2025
30 White Rock Classic 50K USA 50km 1994 - 2025
30 Cross Timbers Trail Run USA 50mi 1982 - 2019
30 Woodside Trail Run 50K USA 50km 2002 - 2023
30 Zane Grey 50 Mile Endurance Run USA 50mi 1990 - 2025
30 Palo Duro 50 Mile Trail Run USA 50mi 1985 - 2025
30 8 Hours of Hell - Caloosahatchee Regional Park USA 8h 2015 - 2024
30 Croom Trail 50 Mile Fools Run USA 50mi 1995 - 2025
30 Germantown 50k USA 50km 1995 - 2025
30 Chicago Lakefront Fall 50km Race USA 50km 2000 - 2025
30 Bridle Trails Winter Running Festival USA 50km 1996 - 2026
30 John Dick Memorial 50K USA 50km 1995 - 2026
29 The Barkley Marathons 100 Mile USA 100mi 1995 - 2024
29 Kettle Moraine 100 Mile Endurance Run USA 100mi 1996 - 2025
29 San Juan Solstice 50 Mile Run USA 50mi 1995 - 2025
29 Massanutten Mountain Trails 100 Mile USA 100mi 1995 - 2025
29 Bandera 50 km Ultratrail USA 50km 2003 - 2026
29 Snow Peaks 50 Mile Trail Run USA 50mi 1997 - 2025
29 Catoctin 50k Trail Run USA 50km 1995 - 2025
29 Chuckanut 50K USA 50km 1995 - 2025
29 Carl Touchstone Memorial Mississippi Trail 50 Mile USA 50mi 1996 - 2025
29 McDonald Forest 50K Trail Run USA 50km 1996 - 2025
29 Carl Touchstone Memorial Mississippi Trail 50 Km USA 50km 1996 - 2025
29 Quicksilver 50 Mile Endurance Run USA 50mi 1984 - 2013
29 McKenzie River 50 km Trail Run USA 50km 1997 - 2025
28 Rachel Carson Trail Challenge USA 34mi 1996 - 2025
28 Bishop High Sierra Ultramarathons 50 Miles USA 50mi 1994 - 2025
28 John Holmes 50k Trail Run USA 50km 1998 - 2026
28 Maine Track Club Ultra 50 Mile USA 50mi 1992 - 2025
28 Holcomb Valley 33 Mile USA 33mi 1997 - 2025
28 Pemberton Trail 50 km USA 50km 1998 - 2026
28 Self-Transcendence 3100 Mile Race USA 3100mi 1997 - 2025
28 Beast of Burden Winter 100 Miler USA 100mi 2010 - 2024
28 Lake Waramaug 50km Ultra Marathon USA 50km 1995 - 2025
28 Miwok 100k Trail race USA 100km 1996 - 2025
28 Palouse 100K Relay And Solo USA 100km 1990 - 2019
27 Magnus Gluteus Maximus 50 km USA 50km 1996 - 2025
27 Bighorn Mountain Wild & Scenic 50mi Trail Run USA 50mi 1998 - 2025
27 Glacial Trail 50 km Race USA 50km 1999 - 2025
27 Rocky Raccoon 50 Mile Trail Run USA 50mi 2002 - 2026
27 HTC Recover From the Holidays 50K USA 50km 1995 - 2025
27 Rockledge Rumble Trail Run USA 50km 1998 - 2025
27 Finger Lakes Fifties 50 Mile Run USA 50mi 1998 - 2025
27 Salem Lakeshore Frosty Fifty USA 50km 2000 - 2026
27 Sri Chinmoy 10 Day Race USA 10d 1996 - 2025
27 Finger Lakes Fifties 50 km Run USA 50km 1998 - 2025
27 The Bear 100 Mile Endurance Run USA 100mi 1999 - 2025
27 Ancient Oaks 100 Mile Run USA 100mi 1999 - 2025
26 Cascade Crest Classic 100 Mile USA 100mi 1999 - 2025
26 Howl at the Moon 8 Hour Run USA 8h 1999 - 2025
26 Mt. Hood 50 Mile Trail Run USA 50mi 1999 - 2025
26 Grand Ridge 50 Km Trail Run USA 50km 2010 - 2025
26 Taturs Lake McMurtry 50 Km Trail Race USA 50km 1999 - 2025
26 Uwharrie Mountain Run USA 40mi 1997 - 2026
26 Double Chubb 50k USA 50km 1999 - 2025
26 Bighorn Mountain Wild & Scenic 50km Trail Run USA 50km 1999 - 2025
26 Vermont 50 Miles Ultra Run USA 50mi 1999 - 2025
26 Run Rabbit Run 100 Mile UltraMarathon - Hares Run USA 100mi 2012 - 2025
26 HURL Elkhorn 50 Mile Endurance Run USA 50mi 1998 - 2025
26 Dawn to Dusk to Dawn 12 Hour USA 12h 1984 - 2025
26 Dawn to Dusk to Dawn 50K USA 50km 1985 - 2025
26 Pullman Winter Ultra 50K - Jan USA 50km 2010 - 2026
26 Sri Chinmoy 6 Day Race USA 6d 1998 - 2025
25 Presque Isle 12 Hour Endurance Classic USA 12h 1999 - 2025
25 Berryman 50 Mile USA 50mi 2000 - 2025
25 Trail Mix Race USA 50km 1993 - 2025
25 Big Butt 50 km USA 50km 1994 - 2025
25 Ouachita Trail 50 km USA 50km 2000 - 2025
25 Siskiyou Out Back 50 km Trail Run USA 50km 1999 - 2025
25 Man Against Horse 50 Mile Race USA 50mi 1995 - 2025
25 Pisgah Mountain Trail Race USA 50km 1998 - 2025
25 Hagg Lake Trail Runs 50K USA 50km 2001 - 2026
25 Mendon 50K Trail Run USA 50km 1999 - 2025
25 Glacial Trail 50 Mile Race USA 50mi 2001 - 2025
25 Heartland 100 Mile Race USA 100mi 2000 - 2025
25 North Country Trail Run 50 Mile USA 50mi 2000 - 2025
25 Collegiate Peaks 50 Miles USA 50mi 1991 - 2025
25 Grasslands 50 Mile Trail Run USA 50mi 1999 - 2025
25 Baker Lake 50K Ultra Trail Run USA 50km 2002 - 2025
25 HURL Elkhorn 50 km Endurance Run USA 50km 1998 - 2025
25 Susitna 100 Mile USA 100mi 1998 - 2026
25 Palo Duro 50 km Trail Run USA 50km 2000 - 2025
25 HURT 100 Endurance Run 100 Mile USA 100mi 2001 - 2026
25 Huff 50K Trail Run USA 50km 1997 - 2021
24 Rio Del Lago 100 Mile USA 100mi 2000 - 2025
24 Kettle Moraine 100 km Endurance Run USA 100km 2001 - 2025
24 Chicago Lakefront Fall 50 Mile Race USA 50mi 2002 - 2025
24 Katcina Mosa 100K Mountain Run USA 100km 2002 - 2025
24 6 Hour 60th Birthday Run USA 6h 2001 - 2025
24 Recover from the Holidays 50K USA 50km 1996 - 2026
24 OPSF Ultra 50 Mile Race USA 50mi 1993 - 2025
24 Bishop High Sierra Ultramarathons 50 km USA 50km 1998 - 2025
24 Bandera 100 km Ultratrail USA 100km 2003 - 2026
24 Hot to Trot 8 Hours Run USA 8h 2001 - 2025
24 OPSF Ultra 50 km Race USA 50km 1995 - 2025
24 Wakely Dam Ultra USA 32.6mi 2001 - 2025
24 Santa Barbara Nine Trails 35 Mile Endurance Run USA 35mi 1990 - 2025
24 Promise Land 50K++ USA 50km 2001 - 2025
24 McNaughton 50 Mile Ultra Race USA 50mi 2001 - 2025
24 Rock/Creek StumpJump 50K USA 50km 2002 - 2025
24 Hells Hills 50km Race USA 50km 2001 - 2025
24 Ruth Anderson Ultra 50mi USA 50mi 2001 - 2025
23 Stone Steps 50K Trail Run USA 50km 2003 - 2025
23 Where's Waldo 100K Ultramarathon USA 100km 2002 - 2025
23 Tahoe Rim Trail 50km Endurance Runs USA 50km 2001 - 2025
23 Derby 50k Ultra Run USA 50km 2003 - 2025
23 Javelina Jundred 100 Mile Endurance Run USA 100mi 2003 - 2025
23 Hellgate 100 km USA 100km 2003 - 2025
23 Cle Elum Ridge 50k USA 50km 1995 - 2018
23 Maine Track Club Ultra 50 km USA 50km 2000 - 2025
23 Tahoe Midnight Express Ultra 72 Mile USA 72mi 2002 - 2025
23 Lake Waramaug 50mi Ultra Marathon USA 50mi 2000 - 2025
23 Croom Trail 50K I'm Not A Fool Run USA 50km 2002 - 2025
23 Ruth Anderson Ultra 50km USA 50km 2002 - 2025
23 Oak Mountain 50km Race USA 33mi 2000 - 2025
23 FANS 12 Hour Run USA 12h 2002 - 2025
23 Ice Age Trail 50 km Run USA 50km 2003 - 2025
23 Superior Fall Trail Races 50 Mile USA 50mi 2000 - 2025
23 Red Eye 50km USA 50km 1998 - 2026
23 Bighorn Mountain Wild & Scenic 100mi Trail Run USA 100mi 2002 - 2025
23 Tamalpa Headlands 50K USA 31.5mi 1998 - 2025
22 Vermont 50 km Ultra Run USA 50km 2003 - 2025
22 Little Su 50 km USA 50km 2002 - 2026
22 Trail Run at Sly Park - Fall USA 50km 2016 - 2025
22 Tahoe Rim Trail 50M Endurance Run USA 50mi 2001 - 2024
22 Prickly Pear 50 km Trail Run USA 50km 2003 - 2025
22 Resurrection Pass 100 Mile Ultra Trail Race USA 100mi 2003 - 2025
22 Virginia 24 Hour Run for Cancer USA 24h 2004 - 2025
22 PCT 50 Mile Trail Run USA 50mi 1993 - 2025
22 Fat Ass Race - GAC FA50 USA 50km 2001 - 2025
22 Superior Spring 50 km Trail Race USA 50km 2003 - 2025
22 San Juan Trail 50 Km USA 50km 1989 - 2014
22 San Diego 100 Mile Endurance Run USA 100mi 2001 - 2025
22 Sunmart Texas Trails 50 Km USA 50km 1993 - 2014
22 Can Lake 50 Mile Ultra USA 50mi 2003 - 2025
22 Buffalo Runners 6 Hour Distance Classic USA 6h 2001 - 2025
22 Old Gabe 50K USA 50km 2002 - 2025
22 Rocks and Roots Trail Series 50K USA 50km 2013 - 2026
22 Pacifica 50 Km Trail Run USA 50km 2004 - 2019
22 Rockin-K Trail 50 Mile USA 50mi 1999 - 2023
22 LOST 118 Mile Endurance Run USA 118mi 2007 - 2026
22 The Ring 71-mile Run USA 71.1mi 2002 - 2025
21 Brew to Brew 44.4 mile USA 44.4mi 1999 - 2021
21 Swamp Stomper 50K USA 50km 2006 - 2026
21 Louisville's Love'n the Hills (LLTH 50K) USA 50km 2004 - 2025
21 Land Between The Lakes 60 km Trail Run USA 60km 2004 - 2025
21 Greenland Trail Race USA 50km 2005 - 2025
21 Pacific Rim One Day USA 24h 1999 - 2024
21 Wild Hare 50 Mile Race USA 50mi 2005 - 2025
21 Triple Lakes Trail Race USA 40mi 2005 - 2025
21 Stone Cat 50 Mile USA 50mi 2001 - 2025
21 McNaughton 100 Mile Ultra Race USA 100mi 2004 - 2025
21 Lord Hill Trail Run USA 50km 2004 - 2026
21 Baker Trail 50 Mile UltraChallenge USA 50mi 2005 - 2025
21 Mount Cheaha 50K UltraMarathon Race USA 50km 2006 - 2026
21 Pigtails Run 50K USA 50km 2006 - 2024
21 Dizzy Fifties - 50 km Trail Run USA 50km 2004 - 2025
21 Mount Mitchell Challenge USA 40mi 1999 - 2020
21 Hocking Hills Indian Run USA 60km 2000 - 2025
21 Highlands Sky 40M Trail Run USA 40mi 2003 - 2025
21 Mt. Si 50 km Ultra Run USA 50km 2003 - 2025
21 Youngstown Ultra Trail Classic 50K USA 50km 2005 - 2025
21 Run Toto Run Psycho Wyco 50K USA 50km 2005 - 2026
21 Bel Monte 50 km Endurance Run USA 50km 2005 - 2025
21 Chicago Lakefront Spring 50km Race USA 50km 2000 - 2021
21 Big Dog Ultra Trail Run USA 50km 1999 - 2019
21 Rock Cut Hobo 50K USA 50km 2004 - 2025
21 Rocky Mountain Double Marathon USA 52.4mi 1980 - 2012
21 Highland Forest 1-2-3 USA 30mi 1999 - 2025
20 Another Dam 50K Run USA 50km 2005 - 2025
20 Three Days of Syllamo Stage Race USA 142km/3Etappen 2005 - 2024
20 Badgerland F/X 24 Hour Run USA 24h 2004 - 2025
20 Long Island Greenbelt Trail 50 km USA 50km 2003 - 2023
20 Pony Express Trail 100 Mile USA 100mi 2006 - 2025
20 Badgerland F/X 12 Hour Run (day) USA 12h 2004 - 2025
20 Laurel Highlands 50 km Ultra USA 50km 2006 - 2025
20 Edmund Fitzgerald 100K Road Race USA 100km 1982 - 2006
20 Arrowhead Winter Ultra USA 135mi 2006 - 2026
20 ORRC Autumn Leaves 50 Mile Run USA 50mi 1998 - 2025
20 Heartland 50 Mile Race USA 50mi 2001 - 2025
20 Laurel Valley 35 Miles USA 35mi 1995 - 2014
20 Last Annual Vol-State 500K Endurance Run USA 500km 2006 - 2025
20 Guana River 50K Trail Run USA 50km 2002 - 2025
20 Lean Horse Ultra-Marathon 50 Mile USA 50mi 2005 - 2025
20 ORRC Autumn Leaves 50 km Run USA 50km 1998 - 2025
20 Antelope Island Buffalo Run 50 Mile USA 50mi 2007 - 2025
20 New York 6 day race USA 6d 1874 - 1891
20 8 Hour Adventure Trail Run USA 8h 2009 - 2026
20 Capitol Peak MegaFatAss USA 34mi 2003 - 2026
20 Peterson Ridge Rumble 60 Km Trail Run USA 60km 2004 - 2025
20 Dances with Dirt 50K Ultra USA 50km 1997 - 2025
20 Paleozoic Trail Runs - Silurian Spring 50K USA 50km 2013 - 2025
20 Run On The Sly 50 Km USA 50km 1995 - 2015
20 Lean Horse Ultra-Marathon 100 Mile USA 100mi 2005 - 2025
19 Dances with Dirt - Hell 50M Ultra USA 50mi 1999 - 2025
19 Devils Backbone 50 Miler USA 50mi 2005 - 2025
19 Lean Horse Ultra-Marathon 50 km USA 50km 2005 - 2025
19 The Door County Fall 50 USA 50mi 2006 - 2025
19 El Vaquero Loco 50K Mountain Race USA 50km 2005 - 2025
19 Capitol Peak 50 Miler USA 50mi 2005 - 2025
19 Can Lake 50 km Ultra USA 50km 2006 - 2025
19 Farmdale Trail Run 30 Mile USA 30mi 2006 - 2025
19 Mother's Day six hour race USA 6h 2000 - 2018
19 Plain 100 Mile Endurance Run USA 100mi 1998 - 2024
19 12 Hour Adventure Trail Run USA 12h 2007 - 2025
19 Wild Wild West 50k USA 50km 2003 - 2025
19 Tussey Mountainback 50 Miler USA 50mi 2000 - 2018
19 Sunmart Texas Trails 50 Mile USA 50mi 1993 - 2014
19 Burning River 100 Mile Endurance Run USA 100mi 2007 - 2025
19 Hawthorn Half Day Run USA 12h 2006 - 2025
19 Bohemian Alps 50 km Ultramarathon USA 32mi 2007 - 2025
19 Antelope Island Buffalo Run 50 km USA 50km 2006 - 2025
19 Wild Hare 50 Km Race USA 50km 2007 - 2025
19 Moab Red Hot 55k USA 55km 2007 - 2026
19 Blues Cruise 50K Ultra Trail USA 50km 2006 - 2025
19 Cactus Rose 100 Mile USA 100mi 2007 - 2025
19 The Equalizer 6 Hour Run USA 6h 2000 - 2025
19 Dawn to Dusk to Dawn 24 Hour USA 24h 1986 - 2025
19 Hinson Lake 24 Hour Ultra Classic USA 24h 2006 - 2025
19 Olander Park 24 Hour Run USA 24h 1989 - 2020
19 Delano Park 12 Hour Run USA 12h 2007 - 2025
19 Seneca Creek Greenway Trail 50k USA 50km 2005 - 2025
19 Calico Trail Run 50 km USA 50km 2005 - 2026
19 Sierra Nevada Endurance 53 Mile Run USA 53.2mi 1992 - 2011
19 Canyon Meadow (Winter) 50 km Trail Run USA 50km 2011 - 2025
19 Javelina Jundred 100 km Endurance Run USA 100km 2007 - 2025
19 Kal-Haven Trail Run USA 33.5mi 2007 - 2025
19 USATF National Championships Santee USA 50km 2004 - 2021
19 Orcas Island 50k USA 50km 2006 - 2025
19 Elizabeth's Furnace Fat Ass 50 km Race USA 50km 2006 - 2025
18 Yankee Springs 50 km Winter Challenge USA 50km 2012 - 2026
18 Hells Hills 50 Mile Race USA 50mi 2007 - 2025
18 The Barkley Marathons 40 Mile USA 40mi 1995 - 2022
18 Mt. Hood 50 Km Trail Run USA 50km 1999 - 2025
18 Rodeo Beach 50km USA 50km 2005 - 2023
18 Around The Lake Ultra 24h USA 24h 1998 - 2015
18 Tantalus Triple Trek 50k USA 50km 2006 - 2025
18 Clinton Lake Ultra USA 30mi 2007 - 2025
18 Dogwood Canyon Trail Run USA 50km 2008 - 2025
18 Hell Hole Hundred 60 Km USA 60km 2015 - 2025
18 Jemez Mountain 50mi Trail Run USA 50mi 2006 - 2025
18 The Equalizer 24 Hour Run USA 24h 2004 - 2025
18 John Bryan 50k USA 50km 2007 - 2025
18 Speedgoat 50k USA 50km 2008 - 2025
18 Upchuck 50K Trail Running Race USA 50km 2008 - 2025
18 Jemez Mountain 50km Trail Run USA 50km 2006 - 2025
18 Jacks 50k Trail Race USA 50km 2008 - 2025
18 Trail Festival at Pineland Farms USA 50km 2006 - 2025
18 Surf the Murph 50 km Run USA 50km 2008 - 2025
18 Tahoe Rim Trail 100M Endurance Runs USA 100mi 2006 - 2024
18 Bel Monte 50 Mile Endurance Run USA 50mi 2008 - 2025
18 Run Rabbit Run 50 Mile UltraMarathon USA 50mi 2007 - 2025
18 Taturs Pumpkin Holler 100 Mile Race USA 100mi 2011 - 2025
18 Rainier to Ruston Rail-Trail 50 Mile Ultra USA 50mi 2005 - 2024
18 Pinhoti 100 Mile USA 100mi 2008 - 2025
18 Iron Mountain 50 Mile Trail Run USA 50mi 2006 - 2024
18 Vasque Free State Trail 40 Miles Run USA 40mi 2007 - 2025
18 Montaña de Oro 50 km Race USA 50km 2005 - 2025
18 Spokane River Run 50K USA 50km 2006 - 2025
18 Delano Park 50 Mile Run USA 50mi 2008 - 2025
18 Taturs Six Hour Snake Run USA 6h 2008 - 2025
18 Land Between The Lakes 50 Mile Trail Run USA 50mi 2007 - 2025
18 Mohican Trail 50 Mile USA 50mi 2008 - 2025
17 E.T. Full Moon Midnight Ultra Marathon USA 51km 2009 - 2025
17 Hunter S. Thompson Fear & Loathing 50 Miles USA 50mi 1996 - 2025
17 Labor of Love 50 km Race USA 50km 2008 - 2025
17 Wild Duluth 50 km Races USA 50km 2009 - 2025
17 Epiphany Ultras - 50 Km Run USA 50km 1997 - 2014
17 The Cowtown Marathon USA 50km 2008 - 2026
17 Ozark Trail 100 Mile Endurance Run USA 100mi 2009 - 2025
17 Trails 4 Tails 40 Mile Run USA 40mi 2009 - 2025
17 Hunter S. Thompson Fear & Loathing 50 Km USA 50km 1996 - 2025
17 Mel Williams Memorial Seashore (Seashore Nature Trail) USA 50km 2009 - 2025
17 Bigfoot Snowshoe Festival USA 50km 2008 - 2025
17 Terrapin Mountain 50 km Race USA 50km 2008 - 2025
17 Surf the Murph 50 Mile Run USA 50mi 2009 - 2025
17 Bimblers Bluff 50k USA 50km 2008 - 2025
17 Pony Express Trail 50 Mile USA 50mi 2009 - 2025
17 Capon Valley 50K Run USA 50km 1999 - 2015
17 Lookout Mountain 50 Mile Race USA 50mi 2009 - 2025
17 Green Lakes Endurance Run 50 km USA 50km 2006 - 2025
17 Noble Canyon 50k USA 50km 2007 - 2025
17 Dances with Dirt - Gnaw Bone 50 Mile Ultra USA 50mi 2007 - 2025
17 Badgerland F/X 6 Hour Run (day) USA 6h 2009 - 2025
17 Sage Burner Trail Run USA 50km 2008 - 2025
17 Woodside Ramble 50K - Winter USA 50km 2012 - 2025
17 Keys100 Ultra-Marathons 100mi USA 100mi 2008 - 2025
17 Patriot's Ultra Run USA 9:11h 2009 - 2025
17 Potawatomi 30 Mile Trail Run USA 30mi 2004 - 2025
17 Swinging Bridge 50K USA 50km 2007 - 2026
17 24 Hour Adventure Trail Run USA 24h 2006 - 2023
17 Dahlgren Heritage Rail Trail 50K USA 50km 2009 - 2025
17 Stone Mill 50 Mile Run USA 50mi 2010 - 2025
17 Leadville Silver Rush 50 Mile Run USA 50mi 2008 - 2025
17 Mason-Dixon Trail Longest Day 100K Challenge USA 100km 2007 - 2023
17 Dances with Dirt - Gnaw Bone 50 km Ultra USA 50km 2007 - 2025
17 Carkeek 12 Hour USA 12h 2007 - 2025
17 Cactus Rose 50 Mile USA 50mi 2009 - 2025
17 TARC Wapack and Back 50 Mile Trail Race USA 50mi 2007 - 2025
17 Haleakala Run to the Sun USA 36.2mi 1980 - 2009
17 Stevens Creek Striders 50K USA 50km 2002 - 2018
17 TARC Wapack and Back 42 Mile Trail Race USA 42mi 2007 - 2025
17 Mad City 50K Road Race USA 50km 2009 - 2025
17 Keys100 Ultra-Marathons 50mi USA 50mi 2008 - 2025
17 Echo Valley 50 Km Trail Run USA 50km 2011 - 2025
17 Whoo's In El Moro 50k Trail Race USA 50km 2010 - 2019
17 Groundhog Fall 50K USA 50km 1999 - 2015
17 Orange Curtain 50km Ultra Race USA 50km 2006 - 2025
17 Chippewa Moraine 50km Ultra Marathon USA 50km 2008 - 2025
17 Salt Point Trail Run USA 50km 2004 - 2024
17 Gunpowder Keg Ultra USA 50km 2005 - 2025
17 Pumpkin Butt USA 50mi 2005 - 2025
17 Silverton Alpine 50K USA 50km 2009 - 2025
17 Run Under The Stars - Paducah USA 10h 2007 - 2025
17 Black Mountain Monster 12 Hour Run USA 12h 2009 - 2025
17 Psycho Psummer Run Toto Run 50K USA 50km 2007 - 2025
17 Space Coast 50K Beach Run USA 50km 1978 - 2001
16 Run Woodstock - Freak 50 km USA 50km 2009 - 2025
16 Capt'n Karl's Trail Series - Muleshoe Bend USA 60km 2010 - 2025
16 Headlands Hundred 50 Mile Endurance Run USA 50mi 2007 - 2023
16 Red Mountain 50K USA 50km 2008 - 2025
16 Martha Moats Baker Memorial 35 Mile USA 35mi 2008 - 2025
16 3 Days at the Fair 24 Hour Race USA 24h 2010 - 2025
16 Woolley Trail Runs 50k USA 50km 2010 - 2026
16 Rosaryville Veterans Day 50K USA 50km 2010 - 2025
16 The Reverse Ring 71-mile Run USA 71mi 2006 - 2024
16 Harbison 50K USA 50km 2011 - 2026
16 Grindstone 100 Mile USA 100mi 2008 - 2025
16 Croom Zoom 50 km Run USA 50km 2011 - 2026
16 Deadman Peaks Trail Run USA 53mi 2010 - 2025
16 Lake Sonoma 50 Mile Race USA 50mi 2008 - 2025
16 San Tan Scramble 50K USA 50km 2011 - 2026
16 Kettle Moraine 38 Mile Fun Run USA 38mi 2009 - 2025
16 Frozen Trail Runfest USA 50km 2010 - 2025
16 3 Days at the Fair 12 Hour Race USA 12h 2010 - 2025
16 Oil Creek 100 Miles Trail Run USA 100mi 2009 - 2025
16 Norris Dam Hard Trail Race 50K USA 50km 2010 - 2025
16 Just Another Mad Dog 50 Km USA 50km 1995 - 2010
16 Mesquite Canyon 50 km USA 50km 2010 - 2025
16 New River Trail 50 km USA 50km 2008 - 2025
16 Cave Creek Thriller 50K Race USA 50km 2010 - 2025
16 Fools 50K Trail Run USA 50km 2008 - 2024
16 Logan Peak 28 Mile Trail Race USA 28mi 2007 - 2023
16 Green Lakes Endurance Run 100 km USA 100km 2006 - 2025
16 Marquette Trail 50 Mile USA 50mi 2009 - 2025
16 Tuscobia Winter 75 Mile Ultramarathon USA 75mi 2009 - 2026
16 Bigfoot 50K Trail Race USA 50km 2010 - 2025
16 Oil Creek 100 km Trail Run USA 100km 2009 - 2025
16 SweetH2O 50 km USA 50km 2007 - 2024
16 Folsom South Side Trail Run 31 Miles USA 50km 2012 - 2025
16 McDowell Mountain Frenzy 50 km USA 50km 2010 - 2025
16 Marquette Trail 50 km USA 50km 2009 - 2025
16 Day of the Dead Running Series - Day 1 USA 50km 2017 - 2024
16 Febapple Frozen 50 Miles USA 50mi 2011 - 2026
16 Desert Solstice 24 Hour Run USA 24h 2010 - 2025
16 Oil Creek 50 km Trail Run USA 50km 2009 - 2025
16 Viaduct Trail Ultramarathon 100 Mile USA 100mi 2008 - 2025
16 Run Woodstock - 100 Mile Hallucination Run USA 100mi 2009 - 2025
16 Black Mountain Monster 24 Hour Run USA 24h 2009 - 2025
16 Febapple Frozen 50 km USA 50km 2011 - 2026
16 Run Woodstock - Peace Love and 50 Miles USA 50mi 2009 - 2025
16 Dawg Gone Long Run 50 Miler USA 50mi 2009 - 2025
16 Wild Duluth 100 km Races USA 100km 2009 - 2025
16 Capt'n Karl's Trail Series - Pedernales Falls USA 60km 2009 - 2025
16 Iron Mountain 30 Mile Trail Run USA 30mi 2009 - 2025
16 Pass Mountain 50 km Race USA 50km 2010 - 2025
16 Orange Curtain 100km Ultra Race USA 100km 2006 - 2025
16 3 Days at the Fair 48 Hour Race USA 48h 2010 - 2025
16 Frozen Sasquatch 50 km Trail Race USA 50km 2010 - 2026
15 Run Woodstock - 100 km Hallucination Run USA 100km 2010 - 2025
15 Dances with Dirt - Devil's Lake 50K Ultra USA 50km 2009 - 2025
15 Vermont 100 km Endurance Race USA 100km 2008 - 2025
15 Montara Mountain 50 km Trail Run USA 50km 2011 - 2026
15 Shotgun Trail Blast USA 50km 2010 - 2025
15 Trail Festival at Pineland Farms USA 50mi 2008 - 2022
15 Desert RATS Multi-day Footrace Adventure USA 146mi/5Etappen 2007 - 2022
15 Endless Summer 6-Hour Run USA 6h 2011 - 2025
15 Badger Mountain 50 Mile Challenge USA 50mi 2014 - 2025
15 Duncan Ridge Trail 50 km Race USA 50km 2011 - 2025
15 Fire on the Mountain 50k Ultra Marathon USA 32.8mi 2010 - 2025
15 Howard Aslinger 24 Hour Endurance Run USA 24h 2010 - 2025
15 Black Toe 12 Hour Run USA 12h 2013 - 2025
15 Dances with Dirt - Devil's Lake 50M Ultra USA 50mi 2009 - 2025
15 Farmdale Trail Run 50 Mile USA 50mi 2010 - 2025
15 Forget the PR - Mohican 50k USA 50km 2009 - 2025
15 The Bear Chase 50 Mile USA 50mi 2010 - 2025
15 Go Short, Go Long, Go Very Long 50K USA 50km 2012 - 2026
15 Run for Kids 12 Hour Challenge USA 12h 2011 - 2025
15 Sun Mountain 50 km Trail Races USA 50km 2009 - 2025
15 Iron Horse 100 Mile Endurance Run USA 100mi 2007 - 2022
15 Rock Bridge Revenge 50 km Race USA 50km 2009 - 2025
15 North Fork 50 Mile Trail Race USA 50mi 2010 - 2025
15 Angela Ivory 50K Memorial Run USA 50km 2012 - 2026
15 The Georgia Jewel 100 Mile Run USA 100mi 2011 - 2025
15 Howard Aslinger 12 Hour Endurance Run USA 12h 2010 - 2025
15 Des Plaines River 50 Miles Trail Race USA 50mi 2010 - 2025
15 Helen Klein Ultra Classic 50mi USA 50mi 1996 - 2010
15 Odyssey Trail Running Rampage 40 Mile USA 40mi 2010 - 2025
15 The Bear Chase 50 km USA 50km 2010 - 2025
15 The Equalizer 12 Hour Run USA 12h 2010 - 2025
15 Ghost Train Rail Trail Race 30 Mile USA 30mi 2011 - 2025
15 Grand Mesa 50 Mile Trail Race USA 52mi 2010 - 2025
15 North Fork 50 km Trail Race USA 50km 2010 - 2025
15 Diablo 50 km Trail Run USA 50km 2010 - 2025
15 Sri Chinmoy 24 Hour Race USA 24h 1980 - 1993
15 Arcata to Willow Creek Run USA 40mi 1977 - 2016
15 Mount Diablo 50K USA 50km 2001 - 2010
15 Iron Horse 100 km Endurance Run USA 100km 2007 - 2022
15 Weiser River Trail USA 50km 2010 - 2025
15 Vista View 360 Ultramarathon USA 6h 2011 - 2026
15 Moebius Green Monster Trail 50K USA 50km 2011 - 2025
15 Grand Mesa 37 Mile Trail Race USA 37.5mi 2010 - 2025
15 The Georgia Jewel 50 Mile Run USA 50mi 2011 - 2025
15 Ultracentric 48 Hour Run USA 48h 2000 - 2015
15 Hotfoot Hamster 12 Hour Run USA 12h 2017 - 2025
15 Frisco Railroad 50 Km Run USA 50km 2009 - 2025
15 Headlands Hundred 100 Mile Endurance Run USA 100mi 2007 - 2022
15 Grey Rock Trail Run USA 50km 2005 - 2019
15 Leona Divide 50 km Run USA 50km 2010 - 2025
15 Vashon Ultramarathon 50k USA 50km 2010 - 2025
15 Hashawha Hills 50 km Trail Run USA 50km 2008 - 2025
15 Iron Horse 50 Mile Endurance Run USA 50mi 2007 - 2022
15 Three Corner Rock PCT (Bunker to Bonneville) USA 50km 2008 - 2024
15 3 Days at the Fair 72 Hour Race USA 72h 2011 - 2025
15 Table Rock 50 km Ultra USA 50km 2011 - 2025
15 The Trail Marathon 50K USA 50km 2012 - 2025
15 Hawk Hundred - 50 Mile Trail Run USA 50mi 2010 - 2025
15 Diablo Trails Challenge USA 50km 2009 - 2025
15 Cougar Mountain Trail Run USA 50km 2011 - 2025
15 The Georgia Jewel 35 Mile Run USA 35mi 2011 - 2025
15 Ultracentric 24 Hour Run USA 24h 2000 - 2015
15 New Years One Day 24 Hour Run USA 24h 2010 - 2025
15 KUS 12 Hour Ultramarathon USA 12h 2013 - 2025
15 Nanny Goat 24 Hour Race USA 24h 2009 - 2024
15 Black Warrior 50K USA 50km 2006 - 2020
15 Labor Pain 12 Hour Endurance Trail Run USA 12h 2010 - 2025
15 Redwood Summer Trail Run USA 50km 2010 - 2025
15 Tuscobia Winter 150 Mile Ultramarathon USA 150mi 2010 - 2026
15 Antelope Island Buffalo Run 100 Mile USA 100mi 2010 - 2025
15 Tsali Frosty Foot 50k USA 50km 2009 - 2026
15 Golden Gate 50 km Winter Trail Run USA 50km 2011 - 2026
15 New Years One Day 12 Hour Run USA 12h 2010 - 2025
15 Taturs Pumpkin Holler 100 Km Race USA 100km 2011 - 2025
15 Long Haul 100 Mile Ultra-Marathon USA 100mi 2011 - 2026
15 San Lorenzo River Trail Run USA 50km 2010 - 2025
15 Nanny Goat 12 Hour Race USA 12h 2009 - 2024
15 FATS 50K Trail Race USA 50km 2008 - 2025
15 Hog's Hunt 50K Trail Run USA 50km 2000 - 2015
15 East Texas Ultra Runners 50K USA 50km 1995 - 2009
15 New Years One Day 6 Hour Run USA 6h 2010 - 2025
15 Traprock 50k Ultramarathon USA 50km 2010 - 2025
15 Taturs Pumpkin Holler 50 Km Race USA 50km 2011 - 2025
14 Dawn to Dusk Endurance Run 6 Hour USA 6h 2011 - 2025
14 Big A 50K Trail Race USA 50km 2011 - 2025
14 Idaho Mountain Trail Running Festival (IMTRF) USA 100mi 2012 - 2025
14 Cheyenne Mountain Trail Race USA 50km 2011 - 2025
14 Strawberry Field Forever 100 Km Trail Race USA 100km 2019 - 2025
14 Mid-Maryland Ultra 50k USA 50km 2012 - 2025
14 North Carolina Fat Ass 50 Km USA 50km 2010 - 2024
14 St. Pats 12 Hour Race USA 12h 2010 - 2025
14 Run With Scissors Double Marathon USA 52.4mi 2008 - 2024
14 Turkey & Taturs 50 km Trail Race USA 50km 2006 - 2019
14 North Coast 24 Hour Endurance Run USA 24h 2009 - 2019
14 Javelina Jangover Night Run 50K USA 50km 2012 - 2025
14 Lumberjack Endurance 100 Mile Run USA 100mi 2010 - 2024
14 Merrill's Mile 12 Hour Run USA 12h 2012 - 2025
14 Zumbro 100 Mile USA 100mi 2009 - 2025
14 Locomotion 12 Hour Run USA 12h 2016 - 2025
14 Pine Creek Challenge 100 Miles USA 100mi 2012 - 2025
14 Whiskeytown 50km Trail Run USA 50km 2000 - 2013
14 Crazy Desert Trail Race 50 km Race USA 50km 2012 - 2025
14 Antelope Island 50K USA 50km 2011 - 2025
14 Mad City 100K Road Race USA 100km 2007 - 2025
14 Sri Chinmoy Ultra Trio 1000 Mile Race USA 1000mi 1986 - 2003
14 Lumberjack Endurance 100 km Run USA 100km 2010 - 2024
14 Dawn to Dusk Endurance Run 8 Hour USA 8h 2011 - 2025
14 To Bone and Back 40-Mile Ultra Marathon USA 40mi 2011 - 2025
14 Dirty Dozen 12h Endurance Run USA 12h 2010 - 2025
14 Capt'n Karl's Trail Series - Reveille Peak Ranch USA 60km 2012 - 2025
14 Black Hills 50 Mile Run USA 50mi 2011 - 2025
14 White Mesa FA 50km Run USA 50km 2010 - 2024
14 Crystal Springs 50 km Summer Trail Run USA 50km 2011 - 2025
14 Dia De Los Muertos Endurance 12 Hour Run USA 12h 2018 - 2025
14 Sri Chinmoy Ultra Trio 700 Mile Race USA 700mi 1988 - 2004
14 Lumberjack Endurance 50 Mile Run USA 50mi 2010 - 2024
14 Kanawha Trace Trail Runs USA 50km 2011 - 2025
14 Mill Stone 50K USA 50km 2013 - 2026
14 Big Brad Ultras - Punisher 50 Mile USA 50mi 2012 - 2025
14 San Diego 50 Mile Trail USA 50mi 2013 - 2026
14 Darkside 8 Hour Run USA 8h 2006 - 2019
14 PHUNT 50K Run USA 50km 2011 - 2026
14 Manasota Track Club 50K USA 50km 2006 - 2020
14 Big Dog's Backyard Ultra USA 18h 2011 - 2025
14 Mind The Ducks 12 Hour Run USA 12h 2010 - 2025
14 Salt Flats 100 Mile USA 100mi 2011 - 2025
14 Hilo to Volcano 50k Ultramarathon USA 50km 2007 - 2020
14 West Virginia Trilogy Stage Race USA 150km/3Etappen 2010 - 2025
14 Flatlanders 12 Hour Run USA 12h 2005 - 2018
14 Helen Klein Ultra Classic 50km USA 50km 1997 - 2010
14 Born to Run Ultra 50 km Marathon USA 50km 2011 - 2025
14 3 Days at the Fair 6 Hour Race USA 6h 2012 - 2025
14 Quad Rock 50 Mile USA 50mi 2012 - 2025
14 FOURmidable 50K USA 50km 2013 - 2026
14 Black Diamond 40 Miler Ultramarathon USA 40mi 2012 - 2019
14 Lt. JC Stone 50K UltraMarathon USA 50km 2008 - 2018
14 Moosalamoo Ultra USA 36mi 2012 - 2025
14 Rocky 50 Km Trail Run USA 50km 2002 - 2015
14 Born to Run Ultra 100 Mile Marathon USA 100mi 2011 - 2025
14 Tesla Hertz Run 50 Km USA 50km 2013 - 2025
14 Flatlanders 6 Hour Run USA 6h 2005 - 2018
14 Merrill's Mile 24 Hour Run USA 24h 2012 - 2025
14 TARC Don't Run Boston (DRB) 50 Miles USA 50mi 2010 - 2025
14 Oriflamme 50K Trail Run USA 50km 2010 - 2025
14 Elephant Mountain 50 km USA 50km 2013 - 2026
14 Groundhog Fall 50 Mile Endurance Run USA 50mi 1984 - 1997
14 Big Brad Ultras - Pounder 50 Km USA 50km 2012 - 2025
14 Folsom Lake Trail Run - Spring 50K USA 50km 2012 - 2025
14 TARC Don't Run Boston (DRB) 50K USA 50km 1997 - 2021
14 Vasque Free State Trail 100 km Run USA 100km 2007 - 2021
14 Glacier Ridge Trail 50 Mile Ultramarathon USA 50mi 2011 - 2025
14 Dirty German Endurance Fest 50 Mile USA 50mi 2011 - 2025
14 Crystal Springs 50 km Winter Trail Run USA 50km 2011 - 2026
14 Sunset 24 Hour Endurance Challenge USA 24h 2011 - 2025
14 Pacific Crest Trail Fifty USA 50mi 1981 - 1995
14 Lake Chabot 50 km Trail Run USA 50km 2011 - 2025
14 Pine Creek Challenge 100 km USA 100km 2012 - 2025
14 Defiance 50k USA 50km 2010 - 2025
14 Chester Woods 50K Trail Run USA 50km 2011 - 2024
14 White Lake Ultras 12 Hour Race USA 12h 2018 - 2025
14 Badger Mountain 100 Mile Challenge USA 100mi 2011 - 2025
14 McDowell Mountain Frenzy 50 Mile USA 50mi 2012 - 2025
14 G.O.A.T.z 50km Trail Run USA 50km 2012 - 2025
14 A Stroll in The Park 12-Hour Endurance Run USA 12h 2011 - 2025
14 TARC Fells Trail Ultra Winter 32 Mile USA 32mi 2011 - 2025
14 Fort Ord 50K Trail Run USA 50km 2013 - 2026
14 Peak Ultra 50 Mile Endurance Run USA 50mi 2008 - 2025
14 Burning Man Ultramarathon USA 50km 2010 - 2025
14 Glacier Ridge Trail 50 km Ultramarathon USA 50km 2011 - 2025
14 Dirty German Endurance Fest 50 km USA 50km 2011 - 2025
14 Sunset 6 Hour Endurance Challenge USA 6h 2011 - 2025
14 Rattlesnake Trail 50K Ultrarun USA 50km 1998 - 2015
14 H9 Dragon 50 Miler USA 50mi 2011 - 2025
14 Badger Mountain 50 km Challenge USA 50km 2011 - 2025
14 Rodeo Valley 50 km Trail Run USA 50km 2012 - 2025
14 Black Hills 100 Mile Run USA 100mi 2011 - 2025
14 Hawk Hundred - 100 Mile Trail Run USA 100mi 2011 - 2025
14 Trail of Fears Variable Hour Run USA 23h 2012 - 2025
14 Priest Lake Marathon 50k USA 50km 2012 - 2025
14 Angeles National Forest 50k Trail Race USA 50km 2005 - 2025
14 St. Pats 24 Hour Race USA 24h 2010 - 2025
14 Cape Cod Frozen 50k Race USA 50km 2007 - 2020
14 Holston River Endurance Challenge - 6 Hour Run USA 6h 2015 - 2020
13 Javelina Jangover Night Run 75K USA 75km 2012 - 2025
13 Old Goat's 50 Mile Trail Race USA 50mi 2007 - 2019
13 Port Gamble 50K Run USA 50km 2007 - 2016
13 Catherine's 50k Run USA 50km 2010 - 2025
13 Kansas Rails-to-Trails Fall Extravaganza 50 Mile USA 50mi 2013 - 2025
13 Staten Island 6 hour Ultra race USA 6h 2000 - 2019
13 Jackpot Ultra Running Festival 6 Hour Race USA 6h 2014 - 2026
13 Cacapon 12 Hour Challenge USA 12h 2013 - 2025
13 Cuyamaca 100 km Endurance Run USA 100km 2012 - 2025
13 12H The Hard Way USA 12h 2009 - 2022
13 tBunk Endurance Challenge 50 Mile USA 49.6mi 2013 - 2025
13 Skyline to the Sea 50km USA 50km 2008 - 2019
13 Mayapple 50 km Trail Run USA 50km 2010 - 2025
13 Horseshoe Lake 50 km Trail Run USA 50km 2011 - 2024
13 Mount Taylor 50 km Race USA 50km 2012 - 2025
13 Bishop High Sierra Ultramarathons 100km USA 100km 2009 - 2025
13 Pigtails Challenge 100 Mile USA 100mi 2012 - 2025
13 The Great New York 100 Mile Running Exposition USA 100mi 2012 - 2025
13 Kansas Rails-to-Trails Fall Extravaganza 50 km USA 50km 2013 - 2025
13 Beast of Burden Summer 50 Miler USA 50mi 2011 - 2024
13 Dirty Burg 50K Trail Run USA 50km 2012 - 2025
13 Chabot Trail Run USA 50km 2011 - 2026
13 BB 50 Mile Ultramarathon USA 50mi 1983 - 2004
13 Capt'n Karl's Trail Series - Colorado Bend USA 60km 2012 - 2025
13 Viaduct Trail Ultramarathon 50 Mile USA 50mi 2008 - 2025
13 tBunk Endurance Challenge 50 Km USA 31.2mi 2013 - 2025
13 Ultra Race of Champions (UROC) 100K USA 100km 2011 - 2023
13 Potawatomi 150 Mile Trail Run USA 150mi 2012 - 2025
13 Fall Creek Falls 50K USA 50km 2014 - 2025
13 Harding Hustle 50K USA 50km 2011 - 2025
13 Trail Rail Run 50 Mile USA 50mi 2013 - 2025
13 Insomniac Night Trail Run Series - Sinister Night Runs USA 54km 2013 - 2025
13 Angel Island 50k USA 50km 2003 - 2010
13 The Dirt Circuit - 12 Hour Endurance Trail Runs USA 12h 2013 - 2025
13 Tesla Hertz Run 100 Miles USA 100mi 2013 - 2025
13 Kodiak 100 Mile Ultramarathon USA 100mi 2013 - 2025
13 Andiamo 45 Mile Run USA 45mi 1991 - 2011
13 Bristow Trail Run USA 50km 2013 - 2026
13 Tunnel Hill 50 Mile Race USA 50mi 2014 - 2025
13 Über Rock 50K USA 50km 2011 - 2024
13 Bryce 100 Mile Trail Run USA 100mi 2013 - 2024
13 Volcanic 50 USA 50km 2012 - 2025
13 Dizzy Fifties - 40 Mile Trail Run USA 40mi 2004 - 2016
13 Trail Rail Run 50 km USA 33.5mi 2013 - 2025
13 J.W. Corbett 50 Mile Trail Race USA 50mi 2012 - 2025
13 Sri Chinmoy 7 Hour Race USA 7h 2012 - 2025
13 J.W. Corbett 50 Km Trail Race USA 50km 2012 - 2025
13 Black Canyon Trail 100 Km Run USA 100km 2014 - 2026
13 Mesquite Canyon 50 Mile USA 50mi 2013 - 2025
13 Big Butts 50 km USA 50km 2011 - 2025
13 Music City Trail Ultra USA 50km 2013 - 2025
13 Tesla Hertz Run 100 Km USA 100km 2013 - 2025
13 Pine to Palm 100 Mile Endurance Run USA 100mi 2010 - 2025
13 Berkeley Trail Adventure USA 50km 2012 - 2025
13 Double Top 100 Mile USA 100mi 2012 - 2025
13 Cayuga Trails 50 Mile Race USA 50mi 2013 - 2025
13 Squak Mountain 50 Km Trail Run USA 50km 2010 - 2024
13 Hungerford Trail Race 50 Mile USA 50mi 2013 - 2025
13 Coldwater Rumble 100 Mile Race USA 100mi 2014 - 2026
13 White Mountains 100 Mile Ultra Race USA 100mi 2011 - 2025
13 Desert Rats Trail Running Festival 50 Miles USA 50mi 2004 - 2016
13 Flagstaff Sky Peaks 50 Km Mountain Run USA 50km 2012 - 2025
13 Kesugi Ridge Traverse USA 30mi 2013 - 2025
13 The Zion 100 Mile Run USA 100mi 2012 - 2025
13 O24 - Outrun 24h Trail Run USA 24h 2012 - 2025
13 Last Chance 50K Trail Run USA 50km 2012 - 2024
13 Cedro Peak 50 Km Ultramarathon USA 50km 2012 - 2025
13 Cool Moon 100 Mile Endurance Run USA 100mi 2011 - 2025
13 Frozen Gnome 50K USA 50km 2013 - 2026
13 Big Butts 100 km USA 100km 2012 - 2025
13 Mountains to Sea Challenge USA 50km 2012 - 2025
13 Running With The Devil 50 Mile Race USA 50mi 2007 - 2023
13 Georgia Death Race USA 68mi 2013 - 2025
13 Virgil Crest 50 Mile Ultra USA 50mi 2008 - 2025
13 Icebox 480 - 8 Hour Run USA 8h 2013 - 2025
13 Sinnemahone Ultra Marathon USA 33mi 2013 - 2025
13 KUS 24 Hour Ultramarathon USA 24h 2013 - 2025
13 Virgil Crest 100 Mile Ultra USA 100mi 2008 - 2025
13 Jackpot Ultra Running Festival 100 Mile Race USA 100mi 2014 - 2026
13 The Mt. Tammany 10 USA 40mi 2012 - 2025
13 Pulse Endurance Runs (Pickled Feet) 24 Hour USA 24h 2012 - 2025
13 Sean O'Brien 50 km Trail Race USA 50km 2014 - 2026
13 Frisco Railroad 50 Mile Run USA 50mi 2011 - 2025
13 Wild Azalea Trail Challenge USA 50mi 2014 - 2026
13 Power of Four Trail Run USA 50km 2013 - 2025
13 Yakima Skyline Rim 50k USA 50km 2011 - 2025
13 Potomac Heritage Trail USA 50km 2008 - 2023
13 Black Toe 24 Hour Run USA 24h 2016 - 2025
13 Jackpot Ultra Running Festival 24 Hour Race USA 24h 2014 - 2026
13 Rockin Choccolocco 50K USA 50km 2013 - 2025
13 War Eagle 50K USA 50km 2011 - 2025
13 Round The Bay Ultra USA 36.8mi 2013 - 2025
13 Georgia Sky to Summit 50k USA 50km 2013 - 2025
13 Pulse Endurance Runs (Pickled Feet) 12 Hour USA 12h 2012 - 2025
13 Hyner View Trail Challenge 50 Km USA 50km 2012 - 2025
13 Farm Park Challenge - 6 Hour Run USA 6h 2012 - 2025
13 TARC Spring Classic 50 km USA 50km 2011 - 2025
13 Blood Rock 55 km Race USA 50km 2013 - 2025
13 KUS 6 Hour Ultramarathon USA 6h 2013 - 2025
13 Golden Gate Dirty 30 USA 50km 2009 - 2022
13 Earth Day 50k USA 50km 2012 - 2025
13 Coldwater Rumble 50K Race USA 50km 2011 - 2023
13 Jackpot Ultra Running Festival 12 Hour Race USA 12h 2014 - 2026
13 Spooner's Cove 50 km Trail Run USA 50km 2010 - 2024
13 Green Monster Trail Challenge 50K USA 50km 2013 - 2025
13 Lost Boys 50 Mile Trail Run USA 50mi 1991 - 2018
13 24H The Hard Way USA 24h 2009 - 2022
13 tBunk Endurance Challenge 100 Mile USA 101mi 2013 - 2025
13 Lake Hodges Trail Fest 50K USA 50km 2012 - 2025
13 Edward Payson Weston Six Day Track Race USA 6d 1980 - 1992
13 Whispering Pines 12 Hours USA 12h 2014 - 2026
13 Cinderella 50 km Spring Trail Run USA 50km 2011 - 2025
13 Landsford Canal 50 km USA 50km 1996 - 2023
13 Sunset 12 Hour Endurance Challenge USA 12h 2012 - 2025
13 OSS/CIA 50 Mile Night Run USA 50mi 2012 - 2025
12 Delirium Ultra 12 Hour Run USA 12h 2012 - 2025
12 The Bear Chase 100 km USA 100km 2013 - 2025
12 Jackalope Jam 12 Hour Race USA 12h 2015 - 2026
12 3 Days at the Fair 50 Km Race USA 50km 2014 - 2025
12 Isle du Bois Trail Run USA 50km 2011 - 2025
12 Croom Zoom 100 km Run USA 100km 2011 - 2023
12 St. Croix Scenic 50 Mile USA 50mi 2010 - 2021
12 Beyond Limits Ultra Race 50mi USA 50mi 2013 - 2025
12 Sun Mountain 50 Mile Trail Races USA 50mi 2010 - 2025
12 NJ One Day 12 Hour Race USA 12h 2013 - 2025
12 Endurance Challenge - New York Trail 50km USA 50km 2008 - 2019
12 Cruel Jewel 50 Mile USA 50mi 2013 - 2025
12 Austin Rattler Run 66K USA 66km 2014 - 2025
12 Kurt Steiner 50K USA 50km 1993 - 2004
12 Prairie Spirit 100 Mile Trail Ultra Race USA 100mi 2013 - 2025
12 Indian Creek Fifties - 52 Miles USA 52mi 2014 - 2025
12 Marin Ultra Challenge 50 Mile Race USA 50mi 2012 - 2025
12 Hell Hole Hundred 100 Mile USA 100mi 2014 - 2025
12 Long Play Trail Race USA 33mi 2013 - 2025
12 Insomniac Night Trail Run Series - Hypnosis 54k USA 62km 2013 - 2025
12 The Dirt Circuit - 24 Hour Endurance Trail Runs USA 24h 2013 - 2025
12 Crooked Road 24 Hour Ultra USA 24h 2011 - 2025
12 Honey Badger 100 Mile Ultra Road Race USA 100mi 2014 - 2025
12 Rick O'Donnell 8-hour Ultra Challenge USA 8h 2013 - 2025
12 Beyond Limits Ultra Race 50km USA 50km 2013 - 2025
12 Ironmasters Challenge 50k Ultra USA 50km 2012 - 2024
12 Tunnel Hill 100 Mile Race USA 100mi 2014 - 2025
12 6H The Hard Way USA 6h 2009 - 2022
12 C&O Canal 100 Mile USA 100mi 2013 - 2025
12 Blackbeard’s Revenge 100 Mile Race USA 100mi 2019 - 2025
12 Falcon 50 Ultramarathon USA 50mi 2011 - 2025
12 Sweltering Summer Ultra 6 Hours Run USA 6h 2013 - 2025
12 Prairie Spirit 50 Mile Trail Ultra Race USA 50mi 2013 - 2025
12 Dizzy Fifties - 50 Mile Trail Run USA 50mi 2004 - 2016
12 Indian Creek Fifties - 55 Km USA 55km 2014 - 2025
12 Marin Ultra Challenge 50 km Race USA 50km 2012 - 2025
12 Goblin Valley Ultra 50k USA 50km 2005 - 2018
12 The Great New York 100 km Running Exposition USA 100km 2013 - 2025
12 Jackson County 50-50 Ultramarathon - 50 Km USA 50km 2014 - 2025
12 Chase the Moon 12 Hour Endurance Run USA 12h 2014 - 2025
12 Foothills Fat Ass USA 50km 2012 - 2025
12 Manitou's Revenge Ultramarathon USA 54mi 2013 - 2025
12 Run-de-Vous 50 Mile Endurance Run USA 50mi 2011 - 2025
12 HURT 100 Endurance Run 100 km USA 100km 2001 - 2012
12 Snowdrop Foundation 55 Ultra USA 55h 2013 - 2025
12 Ghost Train Rail Trail Race 100 Mile USA 100mi 2012 - 2023
12 NJ One Day 50 km Race USA 50km 2013 - 2025
12 Across the Years, 6 days USA 6d 2013 - 2025
12 Beaverhead 100K Endurance Run USA 100km 2014 - 2025
12 Mahlon Mayhem 75 km USA 75km 2010 - 2021
12 Bell Ringer 50k Trail Run USA 50km 2014 - 2025
12 WRATH Texas 24 Hour Endurance Runs USA 24h 2021 - 2025
12 The Barkley Fall Classic USA 50km 2014 - 2025
12 Endurance Challenge - New York Trail 50 Miles USA 50mi 2008 - 2019
12 PB&J Fat Ass 50K USA 50km 2014 - 2025
12 The Rut Mountain Runs USA 50km 2013 - 2025
12 Desert Rats Trail Running Festival 50 Km USA 50km 2014 - 2025
12 Bear Bait 50M Ultramarathon USA 50mi 2012 - 2024
12 St. Croix Scenic 50 km USA 50km 2014 - 2026
12 Run-de-Vous 50 km Endurance Run USA 50km 2011 - 2025
12 Lake Martin 50 Mile Ultra Trail Race USA 50mi 2013 - 2025
12 Patapsco Valley 50K USA 50km 2014 - 2025
12 Lake Ouachita Vista Trail Endurance 100 Km Run (LOViT) USA 100km 2014 - 2026
12 Quivering Quads 50K Trail Race USA 50km 1994 - 2020
12 TARC Summer Classic 50 km USA 50km 2012 - 2025
12 A-OK Trail Run USA 50km 2000 - 2014
12 Beaverhead 55K Endurance Run USA 55km 2014 - 2025
12 Mahlon Mayhem 50 km USA 50km 2010 - 2021
12 Yeti Snakebite 50 km USA 50km 2013 - 2024
12 Endurance Challenge - Washington D.C. Trail 50 Miles USA 50mi 2007 - 2019
12 Badwater Salton Sea USA 130km 2013 - 2025
12 Heartland 100 km Race USA 100km 2020 - 2025
12 Angry Tortoise 50K USA 50km 2015 - 2026
12 Q50 Races Trails Extravaganza - Ultra 50 Miles USA 52mi 2014 - 2026
12 Nashville 50 km Ultra Marathon USA 50km 2008 - 2023
12 Tesla Hertz Run 50 Miles USA 50mi 2014 - 2025
12 Endurance Challenge - California Trail 50 km USA 50km 2007 - 2019
12 Endurance Challenge - Washington D.C. Trail 50 km USA 50km 2007 - 2019
12 Mogollon Monster 100 Mile USA 106mi 2012 - 2025
12 24 Hours of Palmer Lake Fun Run USA 24h 2014 - 2025
12 Deception Pass 50 km USA 50km 2011 - 2024
12 Sean O'Brien 50 Mile Trail Race USA 50mi 2014 - 2026
12 Rock The Ridge 50-Mile Endurance Challenge USA 50mi 2013 - 2025
12 Bryce 50 Mile Trail Run USA 50mi 2014 - 2025
12 Sycamore Canyon 100k USA 100km 2015 - 2026
12 Indiana Trail 50 Mile USA 50mi 2013 - 2025
12 Marlette Lake Tahoe 50K USA 50km 2014 - 2025
12 Dalmatian Run Fest 33 Mile Saturday Run USA 33.7mi 2021 - 2026
12 Nashville 50 Mile Ultra Marathon USA 50mi 2008 - 2023
12 Ancient Lakes 50 km Trail Run USA 50km 2020 - 2025
12 Endurance Challenge - Wisconsin Trail 50 Miles USA 50mi 2008 - 2019
12 Outdoor X 12 Hour Endurance Run USA 12h 2013 - 2025
12 Kodiak Front 50 Km Ultramarathon USA 50km 2015 - 2025
12 Double Top 100 km USA 100km 2012 - 2025
12 Grand Traverse Mountain Run USA 65km 2014 - 2025
12 Holiday 50k Series - Day 1 USA 50km 2018 - 2019
12 Black Mountain Monster 6 Hour Run USA 6h 2013 - 2025
12 Watchung Winter 50 km Run USA 50km 2009 - 2020
12 Palm Bluff Trail Race 50K Ultra USA 50km 2013 - 2025
12 Carkeek 6 Hour USA 6h 2014 - 2025
12 Ghost of Seattle Marathon USA 50km 2005 - 2025
12 Bryce 50 km Trail Run USA 50km 2014 - 2025
12 Grizzly Peak 50k USA 50km 2012 - 2025
12 Pulse Endurance Runs (Pickled Feet) 6 Hour USA 6h 2013 - 2025
12 Beast of Burden Winter 50 Miler USA 50mi 2012 - 2024
12 Run-de-Vous 100 Mile Endurance Run USA 100mi 2011 - 2025
12 Run Between the Suns 12 hours USA 12h 2012 - 2024
12 Booneville Backroads Ultra 100 Km USA 100km 2014 - 2025
12 Pawling 24 Hour Trail Running Festival - 12h USA 12h 2020 - 2025
12 Boyer's Furnace 40 Mile Race USA 40mi 2013 - 2025
12 Jay Peak 50k Ultra Trail Race USA 50km 2012 - 2025
12 Beyond Limits Ultra Race 24 Hour USA 24h 2013 - 2025
12 Bizz Johnson 50 km Trail Run USA 50km 2012 - 2025
12 Stumptown Trail Run 50K USA 50km 2012 - 2025
12 Blood Rock 50 Mile Endurance Race USA 50mi 2016 - 2025
12 Indiana Trail 100 Mile USA 100mi 2013 - 2025
12 Grand to Grand Ultra USA 160mi/6Etappen 2012 - 2025
12 Pulse Endurance Runs (Pickled Feet) 100 Mile USA 100mi 2013 - 2025
12 Nickel City Fifty Miler USA 50mi 1981 - 1995
12 Pinellas Trail Challenge USA 46mi 2014 - 2025
12 Endurance Challenge - Wisconsin Trail 50 km USA 50km 2008 - 2019
12 Seth’s Fat Ass 50K USA 50km 2010 - 2025
12 Delirium Ultra 24 Hour Run USA 24h 2012 - 2025
12 The Zion 100 km Run USA 100km 2013 - 2025
12 Endurance Challenge - California Trail 50 Mile USA 50mi 2007 - 2019
12 Valley of Fire Backcountry 50 km Trailrace USA 50km 2016 - 2025
12 Booneville Backroads Ultra 50 Km USA 50km 2014 - 2025
12 TARC Summer Classic 50 Mile USA 50mi 2012 - 2025
12 Ultrapalooza 100km USA 100km 2022 - 2025
12 Beyond Limits Ultra Race 100mi USA 100mi 2013 - 2025
12 Monument Valley 50 Km Race USA 50km 2014 - 2026
12 Ouachita Switchbacks 50K USA 50km 2013 - 2026
12 Bear Bait 50K Ultramarathon USA 50km 2012 - 2024
12 Pigtails Challenge 200 Mile USA 200mi 2012 - 2024
12 Cruel Jewel 100 Mile USA 100mi 2013 - 2025
12 Dizzy GOAT 12 Hour Trail Run USA 12h 2013 - 2025
12 Merrill's Mile 48 Hour Run USA 48h 2014 - 2025
12 Insomniac Night Trail Run Series - Adrenaline 65k USA 65km 2013 - 2025
11 Peachtree City 50K USA 50km 2004 - 2015
11 Pigtails Challenge 150 Mile USA 150mi 2012 - 2025
11 Flagstaff to Grand Canyon Stagecoach Line 55km USA 50km 2014 - 2025
11 Piedmont 8 Hour Run USA 8h 2015 - 2025
11 Dawg Gone Long Run 50k USA 50km 2014 - 2025
11 The Hamsterwheel 6 Hour Run USA 6h 2015 - 2025
11 Shawangunk Ridge Trail 32-mile Run USA 32mi 2014 - 2025
11 Booneville Backroads Ultra 100 Mile USA 100mi 2015 - 2025
11 Double Top 50 km USA 50km 2014 - 2025
11 Wicked Root 50 km Race USA 50km 2017 - 2025
11 Ghost Train Rail Trail Race 75 Mile USA 75mi 2011 - 2022
11 Thacher Park Running Festival USA 50km 2014 - 2025
11 Fuzzy Fandango Trail Races USA 50km 2010 - 2025
11 DSE Distance Classic 12 Hour USA 12h 1993 - 2004
11 Dead Horse 50 km Race USA 50km 2014 - 2025
11 Gorge Waterfalls 50k USA 50km 2011 - 2025
11 Siskiyou Out Back 50 Miles Trail Run USA 50mi 2012 - 2024
11 End-Trails 12 Hour Run USA 12h 2013 - 2022
11 Devil on the Divide Ultra USA 50km 2014 - 2025
11 Euchre Bar Massacre USA 50mi 2014 - 2025
11 Insomniac Night Trail Run Series - Vertigo 52K USA 63km 2013 - 2025
11 Delirium Ultra 6 Hour Run USA 6h 2012 - 2025
11 Pulse Endurance Runs (Pickled Feet) 48 Hour USA 48h 2014 - 2025
11 Jackalope Jam 6 Hour Race USA 6h 2015 - 2026
11 Sri Chinmoy Ultra Trio 1300 Mile Race USA 1300mi 1987 - 2002
11 Boulder 24 Hours USA 24h 2004 - 2014
11 Colossal Vail 50 Mile USA 50mi 2014 - 2025
11 Brazos Bend 100 - 100 Mile USA 100mi 2014 - 2025
11 Holy Cowan's Gap 50k+ USA 50km 2011 - 2025
11 Gulf TAC Ultradistance Championships - 100 Mile USA 100mi 1982 - 1984
11 Rocky 50 Km Trail Run USA 50km 2016 - 2026
11 Jackpot Ultra Running Festival 48 Hour Race USA 48h 2016 - 2026
11 Azalea 24 Hour Race USA 24h 2014 - 2025
11 Ghost Train Rail Trail Race 60 Mile USA 60mi 2011 - 2022
11 The Breakers Marathon - Nifty Fifty Miles USA 50mi 1980 - 2006
11 Wilson Creek Frozen 50K USA 50km 2011 - 2026
11 Santa Barbara Red Rock 50 Mile USA 50mi 2009 - 2019
11 River of No Return Endurance Run 108K USA 108km 2014 - 2025
11 Just Another Mad Dog 50 Mile USA 50mi 1995 - 2005
11 Rosaryville 50 Km Trail Run USA 50km 2009 - 2019
11 Elijah Bristow 24 Hour Run USA 24h 2014 - 2025
11 Sierra Azul Trail Challenge USA 50km 2013 - 2025
11 Hell Hath No Hurry 50 Miler USA 50mi 2014 - 2025
11 Quicksilver 100 km Endurance Run USA 100km 2014 - 2025
11 Arctic Frog 50 km Race USA 50km 2014 - 2024
11 Uwharrie 100 Km Trail Run USA 100km 2014 - 2025
11 Merrill's Mile 6 Hour Run USA 6h 2015 - 2025
11 Skyline Mountain Marathon 50K USA 50km 2015 - 2025
11 Hamster Endurance Runs 24 Hour Run USA 24h 2013 - 2025
11 Colossal Vail 50 Km USA 50km 2014 - 2025
11 The Big Schloss 50K USA 50km 2014 - 2025
11 Kansas Rails-to-Trails Fall Extravaganza 100 Mile USA 100mi 2015 - 2025
11 Lost Lake 50k USA 50km 2009 - 2019
11 Kettle Moraine 50 km Endurance Run USA 50km 2014 - 2025
11 Rocky Mountain 50k USA 50km 2013 - 2025
11 Mt. Tam Trail Run USA 50km 2012 - 2024
11 Azalea 12 Hour Race USA 12h 2014 - 2025
11 Ghost Train Rail Trail Race 45 Mile USA 45mi 2011 - 2022
11 FANS 6 Hour Run USA 6h 2014 - 2025
11 Tushars 93km Mountain Runs USA 93km 2015 - 2025
11 Heartland 50 Mile Race USA 50mi 2014 - 2025
11 Elijah Bristow 12 Hour Run USA 12h 2014 - 2025
11 WC-50 Ultra Trail Marathon 50mi USA 50mi 2013 - 2025
11 Hell Hath No Hurry 50 Km USA 50km 2014 - 2025
11 Calero Run 50K USA 50km 2012 - 2025
11 TARC Fells Trail Ultra Winter 40 Mile USA 40mi 2011 - 2022
11 Ray Miller 50 Mile Trail Race USA 50mi 2012 - 2025
11 Singletrack Maniac 50k Trail Run USA 50km 2013 - 2024
11 Salt Flats 50 Mile USA 50mi 2014 - 2025
11 Watershed Preserve 12 Hr Trail Race USA 12h 2004 - 2015
11 Hamster Endurance Runs 12 Hour Run USA 12h 2013 - 2025
11 Uwharrie 100 Mile Trail Run USA 100mi 2014 - 2025
11 Born to Run Ultra 100 km Marathon USA 100km 2011 - 2022
11 Do-Wacka-Do 50 Km Trail Run USA 50km 2010 - 2021
11 Anchorage RunFest - 49K Ultra USA 49km 2014 - 2025
11 Rockin Rockwoods Trail Race USA 53km 2015 - 2025
11 Big Cedar Endurance Run 100 Mile USA 100mi 2014 - 2025
11 Peak Ultra 30 Mile Endurance Run USA 30mi 2010 - 2025
11 Jackpot Ultra Running Festival 50 Mile Race USA 50mi 2018 - 2026
11 Donna 110 Ultra Marathon USA 110mi/2Etappen 2013 - 2025
11 Brazos Bend 50 - 50 Mile USA 50mi 2014 - 2025
11 Anchor Down Ultra 24 Hour Run USA 24h 2015 - 2025
11 Badwater Cape Fear 50 Mile USA 51.4mi 2014 - 2025
11 WC-50 Ultra Trail Marathon 50km USA 50km 2013 - 2025
11 A Race for the Ages USA 86h 2015 - 2025
11 Flagstaff to Grand Canyon Stagecoach Line 100mi USA 100mi 2013 - 2025
11 Firewater 50k Trail Race USA 50km 2015 - 2025
11 Coldwater Rumble 50 Mile Race USA 50mi 2013 - 2023
11 Spitfire Ultra Trail Challenge USA 50km 2015 - 2025
11 Headwaters Trail Run 50K USA 50km 2013 - 2025
11 Edmund Fitzgerald 50K Road Race USA 50km 1982 - 2006
11 American Heroes Races - 24 Hour Run USA 24h 2012 - 2025
11 Jarmans Invitational Marathon USA 30mi 2014 - 2025
11 Lake Martin 100 Mile Ultra Trail Race USA 100mi 2014 - 2025
11 Antelope Canyon 50 Mile Race USA 50mi 2014 - 2025
11 Do-Wacka-Do 50 Mile Trail Run USA 50mi 2011 - 2022
11 Big Cedar Endurance Run 50 Km USA 50km 2014 - 2025
11 Jackalope Jam 24 Hour Race USA 24h 2015 - 2026
11 Peacock Challenge 55 (PC 55) Mile Run USA 55mi 2008 - 2025
11 Destin 50 km Beach Ultra USA 50km 2011 - 2024
11 The Nutcracker 12 Hour Endurance Run USA 12h 2014 - 2024
11 Silverheels Trail Run - 100mi USA 102.5mi 2015 - 2025
11 Lake Ouachita Vista Trail Endurance 100 Mile Run (LOViT) USA 100mi 2015 - 2026
11 Ouray 100 Mile Endurance Run USA 100mi 2014 - 2025
11 On The Rocks Trail Run USA 50km 2014 - 2025
11 Labor of Love 50 Mile Race USA 50mi 2010 - 2021
11 Badwater Cape Fear 50 Km USA 50km 2014 - 2025
11 The Pistol 100 Mile Ultra Run USA 100mi 2013 - 2025
11 Dark Divide 100 Mile Race USA 100mi 2021 - 2025
11 Pilot Mountain to Hanging Rock 50M Ultra USA 50mi 2014 - 2025
11 Post Oak Lodge 50K Trail Challenge USA 50km 2010 - 2020
11 Zumbro 50 Mile USA 50mi 2012 - 2025
11 Folsom Lake Sweetwater Trail Run USA 50km 2016 - 2026
11 Ron Herzog 50K USA 50km 1997 - 2012
11 HARRC's Conococheague 50K Trails Ultra USA 50km 2014 - 2019
11 Telluride Mountain Run USA 38mi 2013 - 2025
11 San Joaquin River Trail 50K Run USA 50km 2014 - 2025
11 Ray Miller 50 km Trail Race USA 50km 2012 - 2025
11 Lenape Trail Run USA 34mi 2013 - 2025
11 American Heroes Races - 9 hour 11 minute Run USA 9:11h 2010 - 2025
11 8-Hour Dream Endurance Race USA 8h 2015 - 2025
11 Yankee Springs 50 Mile Winter Challenge USA 50mi 2014 - 2025
11 Worlds End Ultramarathon 100K USA 100km 2015 - 2025
11 Dawn to Dusk Endurance Run 15:30 Hour USA 15:30h 2014 - 2025
11 Rattler Trail Race 50K USA 50km 2015 - 2025
11 Never Summer 100k USA 100km 2015 - 2025
11 Brazos Bend 50 - 50 Km USA 50km 2014 - 2025
11 Mountain Lakes 100 USA 100mi 2014 - 2025