Jim Williamson
ID 64719
Born : 1960 Cat. M65 Ultrarunner since 1992 USA
29
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
53
DUV-index+ ?Largest integer N such that the race distances provide at least N complete segments of N km in total. A single long race may therefore contribute several segments. See the DUV-Index tab for the detailed calculation. calculation details
1
Countries visited ?USAUnited States
78,0%
Rank quotient ?This runner's calculation uses 29 eligible race(s): Σ(rank − 1) = 3 215; Σ finishers = 4 121. 3 215 / 4 121 × 100 = 78.02%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed29
Km — ultra races3 756 km
> 100 km18
> 160 km18
Longest race160,9 km
15th The Bear 100 Mile Endurance Run — 27/9/2013

Km per year (ultra races)

80
1 race
2022
80
1 race
2023
2024
2025
2026

Race types (share of distance)

Trail100,0%

Records

50 mi12h24'18100 mi27h58'44

HISTORY

29 race(s)
DateRacePerf.Rk
2023
03.06 50mi USA10th Scout Mountain 50 Miles Ultra Trail 17:05:03 h54
2022
04.06 50mi USA9th Scout Mountain 50 Miles Ultra Trail 16:13:35 h74
2018
03.03 55km USA9th Red Mountain 55K 7:47:00 h35
2013
27.09 100mi USA15th The Bear 100 Mile Endurance Run 31:53:00 h98
22.06 50mi USA19th San Juan Solstice 50 Mile Run 15:02:27 h143
2012
28.09 100mi USA14th The Bear 100 Mile Endurance Run 33:37:14 h131
07.09 100mi USA33rd Wasatch Front 100 Mile 35:49:59 h213
23.06 50mi USA18th San Juan Solstice 50 Mile Run 15:54:52 h140
2011
09.09 100mi USA32nd Wasatch Front 100 Mile 35:30:00 h174
18.06 50mi USA17th San Juan Solstice 50 Mile Run 15:45:09 h152
2010
10.09 100mi USA31st Wasatch Front 100 Mile 35:36:37 h173
19.06 50mi USA16th San Juan Solstice 50 Mile Run 15:58:09 h152
2009
08.08 50mi USA3rd Headlands Hundred 50 Mile Endurance Run 12:24:18 h64
20.06 50mi USA15th San Juan Solstice 50 Mile Run 15:52:26 h108
2008
06.09 100mi USA29th Wasatch Front 100 Mile 34:42:12 h135
21.06 50mi USA14th San Juan Solstice 50 Mile Run 15:20:04 h102
2005
10.09 100mi USA26th Wasatch Front 100 Mile 34:17:54 h124
20.08 100mi USA23rd Leadville Trail 100 Mile 29:23:17 h172
16.07 100mi USA17th Vermont 100 Mile Endurance Race 27:58:44 h102
25.06 100mi USA32th Western States 100 Mile Endurance Run 28:27:00 h243
2004
11.09 100mi USA25th Wasatch Front 100 Mile 35:26:18 h116
05.06 50mi USA8th Snow Peaks 50 Mile Trail Run 13:23:04 h104
2003
06.09 100mi USA24th Wasatch Front 100 Mile 29:41:18 h37
2002
07.09 100mi USA23rd Wasatch Front 100 Mile 33:43:08 h84
2001
08.09 100mi USA22nd Wasatch Front 100 Mile 32:28:06 h68
1995
08.09 100mi USA16th Wasatch Front 100 Mile 33:35:31 h79
1994
09.09 100mi USA15th Wasatch Front 100 Mile 30:54:21 h58
1993
10.09 100mi USA14th Wasatch Front 100 Mile 32:47:18 h45
1992
11.09 100mi USA13th Wasatch Front 100 Mile 33:27:50 h64