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Count of runners by nation
All runners captured in database
(284667)
 (141578)
USA
United States
(426245)
United States

Active runners in previous year (2025)
(59611)
 (27640)
USA
United States
(87251)
United States

Count races per year in United States
Events per year

Count of performances by runners with nationality United States

  men women Sum M+F
Year Performances Persons Performances/
Runner		 Performances Persons Performances/
Runner		 Ratio
M/F		 Performances Persons
2026 2534521666 1.17 110359428 1.17 70:30 3638031094
2025 9198159611 1.54 4251527640 1.54 68:32 13449687251
2024 8916256548 1.58 4113326254 1.57 68:32 13029582802
2023 8118850884 1.6 3762723579 1.6 68:32 11881574463
2022 7125943979 1.62 3492621861 1.6 67:33 10618565840
2021 6368438928 1.64 3183520238 1.57 66:34 9551959166
2020 3018021640 1.39 1419910446 1.36 67:33 4437932086
2019 7713343810 1.76 3876522871 1.69 66:34 11589866681
2018 6693137226 1.8 3420619762 1.73 65:35 10113756988
2017 6289434790 1.81 3209518621 1.72 65:35 9498953411
2016 5940332610 1.82 2985817410 1.71 65:35 8926150020
2015 5707631169 1.83 2726815803 1.73 66:34 8434446972
2014 5502629339 1.88 2458713954 1.76 68:32 7961343293
2013 5104727527 1.85 2184912311 1.77 69:31 7289639838
2012 4597424930 1.84 1885410620 1.78 70:30 6482835550
2011 3785720536 1.84 145678421 1.73 71:29 5242428957
2010 3395218205 1.86 128777178 1.79 72:28 4682925383
2009 2767814751 1.88 101205500 1.84 73:27 3779820251
2008 2338812395 1.89 83174439 1.87 74:26 3170516834
2007 2090911131 1.88 73724033 1.83 73:27 2828115164
2006 174179522 1.83 61073421 1.79 74:26 2352412943
2005 156288408 1.86 55483078 1.8 73:27 2117611486
2004 145287762 1.87 51072863 1.78 73:27 1963510625
2003 134697253 1.86 45632573 1.77 74:26 180329826
2002 123676785 1.82 41302381 1.73 74:26 164979166
2001 115476401 1.8 37222119 1.76 75:25 152698520
2000 112086049 1.85 35452005 1.77 75:25 147538054
1999 112896078 1.86 34961911 1.83 76:24 147857989
1998 95325265 1.81 28461580 1.8 77:23 123786845
1997 86574745 1.82 25151393 1.81 77:23 111726138
1996 72614113 1.77 19931082 1.84 79:21 92545195
1995 56963344 1.7 1351743 1.82 82:18 70474087
1994 50523004 1.68 1119645 1.73 82:18 61713649
1993 48772875 1.7 1101602 1.83 83:17 59783477
1992 45202642 1.71 998541 1.84 83:17 55183183
1991 46832800 1.67 986556 1.77 83:17 56693356
1990 36772326 1.58 693452 1.53 84:16 43702778
1989 35712366 1.51 560389 1.44 86:14 41312755
1988 30772057 1.5 462339 1.36 86:14 35392396
1987 28141902 1.48 433298 1.45 86:14 32472200
1986 22471614 1.39 330244 1.35 87:13 25771858
1985 24591766 1.39 325230 1.41 88:12 27841996
1984 45132762 1.63 607378 1.61 88:12 51203140
1983 41302750 1.5 524347 1.51 89:11 46543097
1982 40092716 1.48 422304 1.39 90:10 44313020
1981 31572218 1.42 305217 1.41 91:9 34622435
1980 15341239 1.24 185142 1.3 90:10 17191381

Count of performances by distance in races in United States

  50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h Sum
YearM FM FM FM FM FM FM FM FM FM FM FM FOverall
202612533575231771033226074016844863147140224412266545365140234228800947507256501118536835
202539380194871255948956378255494492986106064854111161332352091318619247534968356565926889239942644135043
202438614190361251647935939234389692796106524946109953729292019291018785953879762516824628948841259130747
202335982175281129643375024186980372502100054854104049024151723256616835184099549428022188125837662118920
20223087116351103784366434918087213239589154188759425218215262460168042332910152350118437115234963106115
20212711814786953841283678142062582038852140377864262025152221681412287244933532021788636743183695510
202013845690440901579197169922747983958193037719310887219715211411292671518766302591424744506
20193619619757122255201436118097065232397054649867408211317292571172930724011146235113157787239206117078
20183167617519108654745352314946475209387894167709392176214102030144921418310059165810816780134592102393
201729648165271090346543214122861361867798339536973801738142019221390178177107581220827637463248196227
20162835315645110624722307911275915175969093378542334145112041658121419913665431097717603303027990609
2015275061431311198458825019505581178063322835457312131796219061268132878544861587578762772685602
20142648613093115694445193970756161628558122705903531404101216541002119739539679438557322506080792
20132507411975117084169138653947381266519020585382571045634156891078617636533324519342222974163
2012228211048610742377013395124268111942441624404166903545131668568453819566268467091923965948
2011185758090893328821233399338584334121228300123772436120255265353211440197383491479653145
20101654670677921257096535831177703376123823010477438696041943182918349153343101310147411
2009134115507684822118423132482623280995518680443207765271432114256120280671030438371
2008110164419597919187242572039473266186616865397139528216301818822510423785848332268
2007970639675455175255119620194712367752148373049346515836822161988621271753628807
20067952316244531386496182175940021337031133315360364132391212142179217691617623867
2005705430094106129744014315653571840525118471033741613021317141385915818562121439
200465502822387011754361391463362165643011037110413171113072361625914727518919916
200361062512373610973741201391313133436191226619362992321791153613615459018205
2002554822303660105131210711602641172338782111043349107281971182912544419816742
20015073206534809323121191208276943240651147173961131943191332811707381415521
2000464218263185827331116126424812003641033479213881171642171003111329359514924
199945951786356087830311011562281123342681758213591071942661353811402353714939
1998379313713113801287821187244841251933716265742541492029591285712448
1997313312433078751177551044148880233215421330564123001648708251911227
199626799982670625142359801555101219144122666311100235733420169350
19951805542225847357138201495161120036821466144174288576513797144
199414484302060392852184812842693002691793911100228510511216226
1993105634120864081432778312548010100182293832693262910494611126058
199210953771881329130238141104471070072133380015313945359985533
19911095333198634112921691116504106103272545514136524747669925758
1990626195156826418036578854316600344179297240821736646964360
1989611141149221494959485354452146293054700173211035715674138
198838491127817910118537483655900103211983639620312530374663503
19874757311431745684233842368344902576991153351828794563335
1986208511134157816361392514300345922324317212322143322546
1985304671077126867255294084100479168265272829624343202754
1984739142179920520820978103612839673103995942692120045245965120
198366911916951961941910481024104428125303454265379141475184665
1982782106159715914210861105196309263260360032310140164244440
19815356214181381249652815710026114817001210031433013444
198093197927810684834548300100304001000015431951738
2026 36835 finishers (25650 men, 11185 women) in races in United States.
(12533)
 (5752)
(3177)
 (1033)
(2260)
 (740)
(1684)
 (486)
(3147)
 (1402)
(244)
 (122)
(665)
 (453)
(651)
 (402)
(342)
 (288)
(0)
 (0)
(947)
 (507)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
 
Age group distribution 2026 in USA (25650 men, 11185 women)
Age group distribution
2025 135043 finishers (92399 men, 42644 women) in races in United States.
(39380)
 (19487)
(12559)
 (4895)
(6378)
 (2554)
(9449)
 (2986)
(10606)
 (4854)
(1111)
 (613)
(3235)
 (2091)
(3186)
 (1924)
(753)
 (496)
(83)
 (56)
(5659)
 (2688)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
 
Age group distribution 2025 in USA (92399 men, 42644 women)
Age group distribution
2024 130747 finishers (89488 men, 41259 women) in races in United States.
(38614)
 (19036)
(12516)
 (4793)
(5939)
 (2343)
(8969)
 (2796)
(10652)
 (4946)
(1099)
 (537)
(2929)
 (2019)
(2910)
 (1878)
(595)
 (387)
(97)
 (62)
(5168)
 (2462)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
 
Age group distribution 2024 in USA (89488 men, 41259 women)
Age group distribution
2023 118920 finishers (81258 men, 37662 women) in races in United States.
(35982)
 (17528)
(11296)
 (4337)
(5024)
 (1869)
(8037)
 (2502)
(10005)
 (4854)
(1040)
 (490)
(2415)
 (1723)
(2566)
 (1683)
(518)
 (409)
(95)
 (49)
(4280)
 (2218)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
 
Age group distribution 2023 in USA (81258 men, 37662 women)
Age group distribution
2022 106115 finishers (71152 men, 34963 women) in races in United States.
(30871)
 (16351)
(10378)
 (4366)
(4349)
 (1808)
(7213)
 (2395)
(8915)
 (4188)
(759)
 (425)
(2182)
 (1526)
(2460)
 (1680)
(423)
 (329)
(101)
 (52)
(3501)
 (1843)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
 
Age group distribution 2022 in USA (71152 men, 34963 women)
Age group distribution
2021 95510 finishers (63674 men, 31836 women) in races in United States.
(27118)
 (14786)
(9538)
 (4128)
(3678)
 (1420)
(6258)
 (2038)
(8521)
 (4037)
(786)
 (426)
(2025)
 (1522)
(2168)
 (1412)
(287)
 (244)
(93)
 (35)
(3202)
 (1788)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
 
Age group distribution 2021 in USA (63674 men, 31836 women)
Age group distribution
2020 44506 finishers (30259 men, 14247 women) in races in United States.
(13845)
 (6904)
(4090)
 (1579)
(1971)
 (699)
(2274)
 (798)
(3958)
 (1930)
(377)
 (193)
(1088)
 (721)
(971)
 (521)
(141)
 (129)
(26)
 (7)
(1518)
 (766)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
 
Age group distribution 2020 in USA (30259 men, 14247 women)
Age group distribution
2019 117078 finishers (77872 men, 39206 women) in races in United States.
(36196)
 (19757)
(12225)
 (5201)
(4361)
 (1809)
(7065)
 (2323)
(9705)
 (4649)
(867)
 (408)
(2113)
 (1729)
(2571)
 (1729)
(307)
 (240)
(111)
 (46)
(2351)
 (1315)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
 
Age group distribution 2019 in USA (77872 men, 39206 women)
Age group distribution
2018 102393 finishers (67801 men, 34592 women) in races in United States.
(31676)
 (17519)
(10865)
 (4745)
(3523)
 (1494)
(6475)
 (2093)
(8789)
 (4167)
(709)
 (392)
(1762)
 (1410)
(2030)
 (1449)
(214)
 (183)
(100)
 (59)
(1658)
 (1081)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
 
Age group distribution 2018 in USA (67801 men, 34592 women)
Age group distribution
2017 96227 finishers (63746 men, 32481 women) in races in United States.
(29648)
 (16527)
(10903)
 (4654)
(3214)
 (1228)
(6136)
 (1867)
(7983)
 (3953)
(697)
 (380)
(1738)
 (1420)
(1922)
 (1390)
(178)
 (177)
(107)
 (58)
(1220)
 (827)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
 
Age group distribution 2017 in USA (63746 men, 32481 women)
Age group distribution
2016 90609 finishers (60330 men, 30279 women) in races in United States.
(28353)
 (15645)
(11062)
 (4722)
(3079)
 (1127)
(5915)
 (1759)
(6909)
 (3378)
(542)
 (334)
(1451)
 (1204)
(1658)
 (1214)
(199)
 (136)
(65)
 (43)
(1097)
 (717)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
 
Age group distribution 2016 in USA (60330 men, 30279 women)
Age group distribution
2015 85602 finishers (57876 men, 27726 women) in races in United States.
(27506)
 (14313)
(11198)
 (4588)
(2501)
 (950)
(5581)
 (1780)
(6332)
 (2835)
(457)
 (312)
(1317)
 (962)
(1906)
 (1268)
(132)
 (87)
(85)
 (44)
(861)
 (587)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
 
Age group distribution 2015 in USA (57876 men, 27726 women)
Age group distribution
2014 80792 finishers (55732 men, 25060 women) in races in United States.
(26486)
 (13093)
(11569)
 (4445)
(1939)
 (707)
(5616)
 (1628)
(5581)
 (2270)
(590)
 (353)
(1404)
 (1012)
(1654)
 (1002)
(119)
 (73)
(95)
 (39)
(679)
 (438)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
 
Age group distribution 2014 in USA (55732 men, 25060 women)
Age group distribution
2013 74163 finishers (51934 men, 22229 women) in races in United States.
(25074)
 (11975)
(11708)
 (4169)
(1386)
 (539)
(4738)
 (1266)
(5190)
 (2058)
(538)
 (257)
(1045)
 (634)
(1568)
 (910)
(78)
 (61)
(76)
 (36)
(533)
 (324)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
 
Age group distribution 2013 in USA (51934 men, 22229 women)
Age group distribution
2012 65948 finishers (46709 men, 19239 women) in races in United States.
(22821)
 (10486)
(10742)
 (3770)
(1339)
 (512)
(4268)
 (1119)
(4244)
 (1624)
(404)
 (166)
(903)
 (545)
(1316)
 (685)
(68)
 (45)
(38)
 (19)
(566)
 (268)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
 
Age group distribution 2012 in USA (46709 men, 19239 women)
Age group distribution
2011 53145 finishers (38349 men, 14796 women) in races in United States.
(18575)
 (8090)
(8933)
 (2882)
(1233)
 (399)
(3385)
 (843)
(3412)
 (1228)
(300)
 (123)
(772)
 (436)
(1202)
 (552)
(65)
 (35)
(32)
 (11)
(440)
 (197)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
 
Age group distribution 2011 in USA (38349 men, 14796 women)
Age group distribution
2010 47411 finishers (34310 men, 13101 women) in races in United States.
(16546)
 (7067)
(7921)
 (2570)
(965)
 (358)
(3117)
 (770)
(3376)
 (1238)
(230)
 (104)
(774)
 (386)
(960)
 (419)
(43)
 (18)
(29)
 (18)
(349)
 (153)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
 
Age group distribution 2010 in USA (34310 men, 13101 women)
Age group distribution
2009 38371 finishers (28067 men, 10304 women) in races in United States.
(13411)
 (5507)
(6848)
 (2211)
(842)
 (313)
(2482)
 (623)
(2809)
 (955)
(186)
 (80)
(443)
 (207)
(765)
 (271)
(4)
 (3)
(21)
 (14)
(256)
 (120)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
 
Age group distribution 2009 in USA (28067 men, 10304 women)
Age group distribution
2008 32268 finishers (23785 men, 8483 women) in races in United States.
(11016)
 (4419)
(5979)
 (1918)
(724)
 (257)
(2039)
 (473)
(2661)
 (866)
(168)
 (65)
(397)
 (139)
(528)
 (216)
(30)
 (18)
(18)
 (8)
(225)
 (104)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
 
Age group distribution 2008 in USA (23785 men, 8483 women)
Age group distribution
2007 28807 finishers (21271 men, 7536 women) in races in United States.
(9706)
 (3967)
(5455)
 (1752)
(551)
 (196)
(2019)
 (471)
(2367)
 (752)
(148)
 (37)
(304)
 (93)
(465)
 (158)
(36)
 (8)
(22)
 (16)
(198)
 (86)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
 
Age group distribution 2007 in USA (21271 men, 7536 women)
Age group distribution
2006 23867 finishers (17691 men, 6176 women) in races in United States.
(7952)
 (3162)
(4453)
 (1386)
(496)
 (182)
(1759)
 (400)
(2133)
 (703)
(113)
 (33)
(153)
 (60)
(364)
 (132)
(39)
 (12)
(12)
 (14)
(217)
 (92)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
 
Age group distribution 2006 in USA (17691 men, 6176 women)
Age group distribution
2005 21439 finishers (15818 men, 5621 women) in races in United States.
(7054)
 (3009)
(4106)
 (1297)
(440)
 (143)
(1565)
 (357)
(1840)
 (525)
(118)
 (47)
(103)
 (37)
(416)
 (130)
(21)
 (3)
(17)
 (14)
(138)
 (59)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
 
Age group distribution 2005 in USA (15818 men, 5621 women)
Age group distribution
 

Count of races by distance
2026 773 races in United States.
(279)
 (87)
 (43)
 (57)
 (95)
 (48)
 (56)
 (40)
 (14)
 (0)
 (54)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
2025 3036 races in United States.
(968)
 (333)
 (173)
 (240)
 (333)
 (218)
 (279)
 (183)
 (40)
 (4)
 (265)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
2024 2857 races in United States.
(950)
 (323)
 (176)
 (234)
 (332)
 (184)
 (236)
 (149)
 (30)
 (5)
 (238)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
2023 2650 races in United States.
(884)
 (308)
 (157)
 (215)
 (328)
 (165)
 (201)
 (138)
 (27)
 (4)
 (223)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
2022 2573 races in United States.
(848)
 (303)
 (161)
 (208)
 (318)
 (166)
 (193)
 (144)
 (23)
 (4)
 (205)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
2021 2172 races in United States.
(713)
 (259)
 (141)
 (175)
 (284)
 (141)
 (153)
 (119)
 (16)
 (4)
 (167)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
2020 1130 races in United States.
(385)
 (124)
 (69)
 (86)
 (147)
 (74)
 (92)
 (64)
 (11)
 (3)
 (75)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
2019 2269 races in United States.
(805)
 (291)
 (146)
 (169)
 (292)
 (139)
 (158)
 (124)
 (19)
 (5)
 (121)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
2018 2051 races in United States.
(769)
 (264)
 (120)
 (158)
 (274)
 (127)
 (135)
 (101)
 (16)
 (4)
 (83)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
2017 1869 races in United States.
(702)
 (249)
 (109)
 (144)
 (252)
 (110)
 (129)
 (89)
 (15)
 (5)
 (65)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
2016 1735 races in United States.
(667)
 (251)
 (99)
 (145)
 (224)
 (87)
 (110)
 (79)
 (14)
 (4)
 (55)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
2015 1606 races in United States.
(621)
 (243)
 (98)
 (141)
 (222)
 (63)
 (91)
 (71)
 (11)
 (4)
 (41)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
2014 1470 races in United States.
(560)
 (235)
 (85)
 (134)
 (190)
 (67)
 (86)
 (73)
 (7)
 (5)
 (28)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
2013 1250 races in United States.
(497)
 (202)
 (66)
 (114)
 (166)
 (50)
 (70)
 (57)
 (4)
 (3)
 (21)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
2012 1088 races in United States.
(462)
 (184)
 (54)
 (95)
 (129)
 (38)
 (55)
 (44)
 (5)
 (2)
 (20)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
2011 941 races in United States.
(407)
 (164)
 (42)
 (83)
 (107)
 (31)
 (43)
 (41)
 (5)
 (2)
 (16)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
2010 814 races in United States.
(344)
 (143)
 (36)
 (68)
 (98)
 (24)
 (47)
 (35)
 (4)
 (2)
 (13)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
2009 635 races in United States.
(275)
 (119)
 (30)
 (52)
 (80)
 (17)
 (28)
 (23)
 (1)
 (1)
 (9)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
2008 552 races in United States.
(241)
 (113)
 (26)
 (47)
 (68)
 (12)
 (20)
 (16)
 (2)
 (1)
 (6)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
2007 463 races in United States.
(201)
 (96)
 (20)
 (42)
 (59)
 (8)
 (15)
 (13)
 (2)
 (1)
 (6)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
2006 385 races in United States.
(171)
 (77)
 (17)
 (34)
 (44)
 (9)
 (11)
 (12)
 (3)
 (1)
 (6)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h
2005 351 races in United States.
(153)
 (75)
 (16)
 (31)
 (40)
 (8)
 (7)
 (13)
 (3)
 (1)
 (4)
50 km 50 mi 100 km 100 mi Other km 6 h 12 h 24 h 48 h 6 days Other h