| Name: | Williams, Mark |
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| Club: | Witney Road Runners | ||
| Residence: | San Jose, CA, USA | ||
| Year of birth: | 1965 | (Cat. german: M60) | |
| Date of birth: | hidden | (Cat. internat.: M60) | |
| Nationality: | GBR ![]() |
United Kingdom | |
| RunnerID: | 5016 | ||
68 search results (67 Events, 9557.426 km). (More)
| 2021 | 1 Event, 160.934 km (More) | ||||
|---|---|---|---|---|---|
| 06.-07.11.2021 | Rio Del Lago 100 Mile Endurance Run (USA) | 100mi | |||
| 28:37:45 h | Williams, Mark | *San Jose, CA | Overall: 196 | M: 141 | Cat M55: 14 |
| 2019 | 1 Event, 160.934 km (More) | ||||
| 26.-27.10.2019 | Javelina Jundred 100 Mile Endurance Run (USA) | 100mi | |||
| 23:42:06 h | Williams, Mark | *San Jose, CA | Overall: 149 | M: 119 | Cat M50: 11 |
| 2018 | 1 Event, 160.934 km (More) | ||||
| 27.-28.10.2018 | Javelina Jundred 100 Mile Endurance Run (USA) | 100mi | |||
| 25:09:09 h | Williams, Mark | *San Jose, CA | Overall: 159 | M: 126 | Cat M50: 16 |
| 2017 | 1 Event, 160.934 km (More) | ||||
| 28.-29.10.2017 | Javelina Jundred 100 Mile Endurance Run (USA) | 100mi | |||
| 24:40:51 h | Williams, Mark | *San Jose, CA | Overall: 125 | M: 98 | Cat M50: 11 |
| 2016 | 1 Event, 160.934 km (More) | ||||
| 25.-26.06.2016 | Western States 100 Mile Endurance Run (USA) | 100mi | |||
| 27:54:12 h | Williams, Mark | *San Jose, CA | Overall: 162 | M: 130 | Cat M50: 12 |
| 2015 | 1 Event, 160.934 km (More) | ||||
| 31.10.-01.11.2015 | Javelina Jundred 100 Mile Endurance Run (USA) | 100mi | |||
| 23:51:24 h | Williams, Mark | *San Jose, CA, USA | Overall: 111 | M: 87 | Cat M50: 9 |
| 2014 | 1 Event, 153 km (More) | ||||
| 21.-22.06.2014 | West Highland Way Race (GBR) | 153km | |||
| 27:33:52 h | Williams, Mark | Overall: 113 | M: 91 | Cat M45: 16 | |
| 2013 | 3 Events, 304.823 km (More) | ||||
| 19.-20.10.2013 | Big Dog's Backyard Ultra (USA) | 35h | |||
| 174.356 km | Williams, Mark | Overall: 6 | M: 4 | Cat M45: 2 | |
| 14.09.2013 | Headlands Hundred 50 Mile Endurance Run (USA) | 50mi | |||
| 9:54:07 h | Williams, Mark | *San Jose, CA | Overall: 34 | M: 30 | Cat M45: 6 |
| 11.05.2013 | Quicksilver 50 km Endurance Run (USA) | 50km | |||
| 6:42:24 h | Williams, Mark | Overall: 58 | M: 34 | Cat M45: 9 | |
| 2012 | 3 Events, 316.185 km (More) | ||||
| 27.-28.10.2012 | 24H The Hard Way (USA) | 24h | |||
| 185.718 km | Williams, Mark | *San Jose, CA | Overall: 2 | M: 2 | Cat M45: 1 |
| 13.-14.10.2012 | The North Face 50 Singapore (SGP) | 50km | |||
| 4:01:05 h | Williams, Mark | Overall: 1 | M: 1 | Cat M45: 1 | |
| 15.09.2012 | Headlands Hundred 50 Mile Endurance Run (USA) | 50mi | |||
| 10:15:15 h | Williams, Mark | *San Jose, CA, USA | Overall: 18 | M: 16 | Cat M45: 4 |
| 2011 | 2 Events, 261.051 km (More) | ||||
| 22.-23.10.2011 | 24H The Hard Way (USA) | 24h | |||
| 180.584 km | Williams, Mark | Witney Road Runners | Overall: 3 | M: 3 | Cat M45: 2 |
| 08.10.2011 | Dick Collins Firetrails 50 Mile (USA) | 50mi | |||
| 9:20:33 h | Williams, Mark | *San Jose, CA, USA | Overall: 52 | M: 46 | Cat M45: 8 |
| 2010 | 1 Event, 50 km (More) | ||||
| 04.12.2010 | Woodside Trail Run 50K (USA) | 50km | |||
| 5:54:07 h | Williams, Mark | *San Jose, CA | Overall: 20 | M: 17 | Cat M45: 3 |
| 2009 | 2 Events, 100 km (More) | ||||
| 05.12.2009 | Woodside Trail Run 50K (USA) | 50km | |||
| 6:22:32 h | Williams, Mark | *San Jose, CA | Overall: 71 | M: 55 | Cat M40: 13 |
| 12.09.2009 | Paatuwaqatsi Run (USA) | 50km | |||
| 7:02:00 h | Williams, Mark | Overall: 16 | M: 12 | Cat M40: 2 | |
| 2008 | 2 Events, 295.3 km (More) | ||||
| 26.-27.09.2008 | Spartathlon (GRE) | 245.3km | |||
| 35:42:41 h | Williams, Mark | Overall: 125 | M: 116 | Cat M40: 30 | |
| 03.08.2008 | Skyline 50k Endurance Run (USA) | 50km | |||
| 4:40:29 h | Williams, Mark | Overall: 14 | M: 13 | Cat M40: 4 | |
| 2007 | 2 Events, 100 km (More) | ||||
| 20.05.2007 | Ohlone 50K Wilderness Run (USA) | 50km | |||
| 6:13:15 h | Williams, Mark | Overall: 34 | M: 29 | Cat M40: 11 | |
| 03.02.2007 | Woodside Trail Run 50K (USA) | 50km | |||
| 4:51:10 h | Williams, Mark | *San Jose, CA | Overall: 11 | M: 11 | Cat M40: 3 |
| 2006 | 1 Event, 160.934 km (More) | ||||
| 24.-25.06.2006 | Western States 100 Mile Endurance Run (USA) | 100mi | |||
| 25:40:09 h | Williams, Mark | *San Jose, CA | Overall: 66 | M: 55 | Cat M40: 12 |
| 2005 | 3 Events, 456.234 km (More) | ||||
| 30.09.-01.10.2005 | Spartathlon (GRE) | 245.3km | |||
| 33:07:55 h | Williams, Mark | Overall: 35 | M: 32 | Cat M40: 5 | |
| 25.-26.06.2005 | Western States 100 Mile Endurance Run (USA) | 100mi | |||
| 21:55:05 h | Williams, Mark | *San Jose, CA | Overall: 50 | M: 45 | Cat M35: 12 |
| 22.05.2005 | Ohlone 50K Wilderness Run (USA) | 50km | |||
| 5:36:20 h | Williams, Mark | Overall: 5 | M: 5 | Cat M35: 3 | |
| 2004 | 4 Events, 536.701 km (More) | ||||
| 01.-02.10.2004 | Spartathlon (GRE) | 245.3km | |||
| 32:38:49 h | Williams, Mark | *San Jose, CA, USA | Overall: 19 | M: 17 | Cat M35: 7 |
| 26.-27.06.2004 | Western States 100 Mile Endurance Run (USA) | 100mi | |||
| 21:14:04 h | Williams, Mark | *San Jose, CA | Overall: 29 | M: 25 | Cat M35: 7 |
| 22.05.2004 | Carmel Valley 50K (USA) | 50km | |||
| 5:26:30 h | Williams, Mark | *San Jose, CA | Overall: 2 | M: 2 | Cat M35: 2 |
| 08.05.2004 | Quicksilver 50 Mile Endurance Run (USA) | 50mi | |||
| 7:55:35 h | Williams, Mark | Overall: 6 | M: 6 | Cat M35: 2 | |
| 2003 | 5 Events, 650.273 km (More) | ||||
| 27.-28.09.2003 | Tahoe Midnight Express Ultra 72 Mile (USA) | 72mi | |||
| 12:58:12 h | Williams, Mark | Overall: 1 | M: 1 | Cat M35: 1 | |
| 28.-29.06.2003 | Western States 100 Mile Endurance Run (USA) | 100mi | |||
| 26:22:25 h | Williams, Mark | *San Jose, CA | Overall: 131 | M: 113 | Cat M35: 22 |
| 10.05.2003 | Quicksilver 50 Mile Endurance Run (USA) | 50mi | |||
| 7:48:10 h | Williams, Mark | Overall: 3 | M: 3 | Cat M35: 2 | |
| 06.-12.04.2003 | Marathon des Sables (MAR) | 243km/6stages | |||
| 33:41:06 h | Williams, Mark | Overall: 135 | M: 130 | Cat M35: 24 | |
| 22.03.2003 | Pirates Cove Trail Run (USA) | 50km | |||
| 5:09:55 h | Williams, Mark | *San Jose, CA | Overall: 2 | M: 2 | Cat M35: 1 |
| 2002 | 2 Events, 361.172 km (More) | ||||
| 28.-29.09.2002 | Tahoe Midnight Express Ultra 72 Mile (USA) | 72mi | |||
| 12:41:02 h | Williams, Mark | Overall: 1 | M: 1 | Cat M35: 1 | |
| 27.-28.09.2002 | Spartathlon (GRE) | 245.3km | |||
| 34:42:14 h | Williams, Mark | *San Jose, CA, USA | Overall: 53 | M: 46 | Cat M35: 13 |
| 2001 | 3 Events, 486.701 km (More) | ||||
| 28.-29.09.2001 | Spartathlon (GRE) | 245.3km | |||
| 33:27:02 h | Williams, Mark | *San Jose, CA, USA | Overall: 32 | M: 31 | Cat M35: 8 |
| 23.-24.06.2001 | Western States 100 Mile Endurance Run (USA) | 100mi | |||
| 21:34:11 h | Williams, Mark | Overall: 30 | M: 27 | Cat M35: 12 | |
| 12.05.2001 | Quicksilver 50 Mile Endurance Run (USA) | 50mi | |||
| 7:43:54 h | Williams, Mark | Overall: 4 | M: 4 | Cat M35: 2 | |
| 2000 | 1 Event, 245.3 km (More) | ||||
| 29.-30.09.2000 | Spartathlon (GRE) | 245.3km | |||
| 33:59:24 h | Williams, Mark | Overall: 46 | M: 42 | Cat M35: 5 | |
| 1999 | 4 Events, 567.876 km (More) | ||||
| 24.-25.09.1999 | Spartathlon (GRE) | 245.3km | |||
| 32:44:37 h | Williams, Mark | Overall: 15 | M: 15 | Cat M23: 7 | |
| 28.08.1999 | DSE Distance Classic 12 Hour (USA) | 12h | |||
| 81.175 km | Williams, Mark | Overall: 15 | M: 13 | Cat M23: 2 | |
| 26.-27.06.1999 | Western States 100 Mile Endurance Run (USA) | 100mi | |||
| 21:10:51 h | Williams, Mark | Overall: 19 | M: 19 | Cat M23: 4 | |
| 08.05.1999 | Quicksilver 50 Mile Endurance Run (USA) | 50mi | |||
| 7:39:40 h | Williams, Mark | Overall: 3 | M: 3 | Cat M23: 3 | |
| 1998 | 3 Events, 345.3 km (More) | ||||
| 25.-26.09.1998 | Spartathlon (GRE) | 245.3km | |||
| 32:54:48 h | Williams, Mark | Overall: 28 | M: 23 | Cat M23: 6 | |
| 01.08.1998 | Skyline 50k Endurance Run (USA) | 50km | |||
| 4:21:38 h | Williams, Mark | Overall: 7 | M: 7 | Cat M23: 5 | |
| 09.05.1998 | Quicksilver 50 km Endurance Run (USA) | 50km | |||
| 5:44:37 h | Williams, Mark | Overall: 60 | M: 51 | Cat M23: 7 | |
| 1997 | 4 Events, 648.842 km (More) | ||||
| 26.-27.09.1997 | Spartathlon (GRE) | 245.3km | |||
| 35:37:00 h | Williams, Mark | Overall: 63 | M: 58 | Cat M23: 17 | |
| 19.-20.07.1997 | Jim Skophammer/BAUR 24 Hour (USA) | 24h | |||
| 162.141 km | Williams, Mark | Overall: 9 | M: 7 | Cat M23: 2 | |
| 11.-13.07.1997 | Hardrock Hundred Endurance Run (USA) | 100mi | |||
| 39:29:50 h | Williams, Mark | *CA, USA | Overall: 15 | M: 14 | Cat M23: 4 |
| 10.05.1997 | Quicksilver 50 Mile Endurance Run (USA) | 50mi | |||
| 8:27:53 h | Williams, Mark | Overall: 7 | M: 5 | Cat M23: 3 | |
| 1996 | 5 Events, 834.985 km (More) | ||||
| 30.12.1996-01.01.1997 | Across the Years, 48h (USA) | 48h | |||
| 249.200 km | Williams, Mark | Overall: 1 | M: 1 | Cat M23: 1 | |
| 27.-28.09.1996 | Spartathlon (GRE) | 245.3km | |||
| 33:58:00 h | Williams, Mark | Overall: 29 | M: 27 | Cat M23: 6 | |
| 03.08.1996 | Skyline 50k Endurance Run (USA) | 50km | |||
| 5:10:39 h | Williams, Mark | Overall: 42 | M: 37 | Cat M23: 13 | |
| 22.-23.07.1996 | Jim Skophammer/BAUR 24 Hour (USA) | 24h | |||
| 193.925 km | Williams, Mark | Overall: 1 | M: 1 | Cat M23: 1 | |
| 30.03.-01.04.1996 | The Barkley Marathons 60 Mile Fun Run (USA) | 60mi | |||
| 35:00:00 h | Williams, Mark | Overall: 1 | M: 1 | Cat M23: 1 | |
| 1995 | 3 Events, 642.078 km (More) | ||||
| 29.-30.09.1995 | Spartathlon (GRE) | 245.3km | |||
| 33:06:30 h | Williams, Mark | Overall: 23 | M: 21 | Cat M23: 6 | |
| 14.-16.07.1995 | 48-Stunden-Self-Transcendence-Lauf Köln - 100km Split (GER) | 100km | |||
| 10:10:07 h | Williams, Mark | Witney Road Runners | Overall: 2 | M: 2 | Cat M30: 2 |
| 14.-16.07.1995 | 48-Stunden-Self-Transcendence-Lauf Köln (GER) | 48h | |||
| 235.844 km | Williams, Mark | Witney Road Runners | Overall: 20 | M: 14 | Cat M30: 2 |
| 01.-03.04.1995 | The Barkley Marathons 100 Mile (USA) | 100mi | |||
| 2d 11:28:00 h | Williams, Mark | Overall: 1 | M: 1 | Cat M23: 1 | |
| 1994 | 3 Events, 445.767 km (More) | ||||
| 17.12.1994 | Rowbotham's Round Rotherham (GBR) | 50mi | |||
| 8:41:35 h | Williams, Mark | Witney RR | Overall: 22 | M: 20 | Cat M23: 5 |
| 23.-24.09.1994 | Spartathlon (GRE) | 245.3km | |||
| 32:41:00 h | Williams, Mark | Overall: 11 | M: 10 | Cat M23: 1 | |
| 18.-19.06.1994 | West Highland Way Race (GBR) | 120km | |||
| 15:33:00 h | Williams, Mark | *Oxfordshire | Overall: 5 | M: 5 | Cat M23: 2 |
| 1993 | 2 Events, 323.3 km (More) | ||||
| 18.12.1993 | Rowbotham's Round Rotherham (GBR) | 78km | |||
| 8:28:41 h | Williams, Mark | Witney RR | Overall: 12 | M: 10 | Cat M23: 4 |
| 24.-25.09.1993 | Spartathlon (GRE) | 245.3km | |||
| 34:50:26 h | Williams, Mark | Overall: 33 | M: 30 | Cat M23: 6 | |
| 1992 | 1 Event, 153 km (More) | ||||
| 20.-21.06.1992 | West Highland Way Race (GBR) | 153km | |||
| 20:24:30 h | Williams, Mark | *Oxon | Overall: 4 | M: 4 | Cat M23: 3 |
| 1991 | 1 Event, 153 km (More) | ||||
| 06.-07.07.1991 | West Highland Way Race (GBR) | 153km | |||
| 26:56:53 h | Williams, Mark | *Oxon | Overall: 7 | M: 6 | Cat M23: 2 |
Personal bests
Your list of personal best performances only contains performances of races which can be included into rankings.
In brackets rank in yearly international/national rankings.
| PB | 2021 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 | 1999 | 1998 | 1997 | 1996 | 1995 | 1994 | 1993 | 1992 | 1991 | |
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| 100km | 10:10:07 |
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10:10:07
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| 24h | 193.925 |
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185.718
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180.584
(443/20) |
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162.141
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193.925
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| 48h | 249.200 |
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249.200
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235.844
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Comparison table
Comparison of performances in races with multiple participations
| 2021 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 | 1999 | 1998 | 1997 | 1996 | 1995 | 1994 | 1993 | 1992 | 1991 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Spartathlon | 13 | 35:42:41 | 33:07:55 | 32:38:49 | 34:42:14 | 33:27:02 | 33:59:24 | 32:44:37 | 32:54:48 | 35:37:00 | 33:58:00 | 33:06:30 | 32:41:00 | 34:50:26 | |||||||||||||||||
| Western States 100 Mile Endurance Run | 7 | 27:54:12 | 25:40:09 | 21:55:05 | 21:14:04 | 26:22:25 | 21:34:11 | 21:10:51 | |||||||||||||||||||||||
| Quicksilver 50 Mile Endurance Run | 5 | 7:55:35 | 7:48:10 | 7:43:54 | 7:39:40 | 8:27:53 | |||||||||||||||||||||||||
| Javelina Jundred 100 Mile Endurance Run | 4 | 23:42:06 | 25:09:09 | 24:40:51 | 23:51:24 | ||||||||||||||||||||||||||
| West Highland Way Race | 4 | 27:33:52 | 15:33:00 | 20:24:30 | 26:56:53 | ||||||||||||||||||||||||||
| Woodside Trail Run 50K | 3 | 5:54:07 | 6:22:32 | 4:51:10 | |||||||||||||||||||||||||||
| Skyline 50k Endurance Run | 3 | 4:40:29 | 4:21:38 | 5:10:39 | |||||||||||||||||||||||||||
| Jim Skophammer/BAUR 24 Hour | 2 | 162.141 | 193.925 | ||||||||||||||||||||||||||||
| Rowbotham's Round Rotherham | 2 | 8:41:35 | 8:28:41 | ||||||||||||||||||||||||||||
| 24H The Hard Way | 2 | 185.718 | 180.584 | ||||||||||||||||||||||||||||
| Ohlone 50K Wilderness Run | 2 | 6:13:15 | 5:36:20 | ||||||||||||||||||||||||||||
| Tahoe Midnight Express Ultra 72 Mile | 2 | 12:58:12 | 12:41:02 | ||||||||||||||||||||||||||||
| The Barkley Marathons 100 Mile | 2 | 35:00:00 | 59:28:00 | ||||||||||||||||||||||||||||
| Headlands Hundred 50 Mile Endurance Run | 2 | 9:54:07 | 10:15:15 | ||||||||||||||||||||||||||||
| Quicksilver 50 km Endurance Run | 2 | 6:42:24 | 5:44:37 |





