Michael Thomas
ID 76340
Born : 1961 Cat. M65 Ultrarunner since 1992 USA
33
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
63
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
72,8%
Rank quotient ?This runner's calculation uses 34 eligible race(s): Σ(rank − 1) = 2 993; Σ finishers = 4 109. 2 993 / 4 109 × 100 = 72.84%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed34
Km — ultra races5 145 km
> 100 km29
> 160 km29
> 200 km1
Longest race217,3 km
25th Badwater Ultramarathon — 11/7/2011

Km per year (ultra races)

322
2 races
2022
2023
161
1 race
2024
161
1 race
2025
2026

Race types (share of distance)

Road4,2%
Trail95,8%

Records

100 km18h19'3050 mi13h02'45100 mi25h53'10

HISTORY

34 race(s)
DateRacePerf.Rk
2025
26.09 100mi USA27th The Bear 100 Mile Endurance Run 34:34:10 h210
2024
06.09 100mi USA45th Wasatch Front 100 Mile 35:52:46 h162
2022
23.09 100mi USA24th The Bear 100 Mile Endurance Run 33:30:24 h184
28.05 100mi USA10th Bryce 100 Mile Trail Run 34:57:32 h45
2021
17.09 100mi USA15th Run Rabbit Run 100 Mile UltraMarathon - Tortoises Run 34:40:36 h143
13.08 100mi USA4th UTE 100 Mile Trail Race 35:20:10 h48
19.06 100mi USA29th Bighorn Mountain Wild & Scenic 100 Mile Trail Run 33:07:17 h129
2020
25.09 100mi USA22nd The Bear 100 Mile Endurance Run 32:33:45 h135
25.07 100km USA6th Never Summer 100k 18:19:30 h111
2019
09.08 100mi USA2nd UTE 100 Mile Trail Race 35:20:11 h48
2012
04.02 100mi USA20th Rocky Raccoon 100 Mile Trail Run 28:39:24 h182
2011
11.07 135mi USA25th Badwater Ultramarathon 42:38:14 h65
2010
24.09 100mi USA12th The Bear 100 Mile Endurance Run 32:47:44 h85
18.06 100mi USA19th Bighorn Mountain Wild & Scenic 100 Mile Trail Run 33:03:58 h83
2009
20.06 50mi USA15th San Juan Solstice 50 Mile Run 15:47:49 h107
2008
26.09 100mi USA10th The Bear 100 Mile Endurance Run 34:28:52 h46
2006
15.07 100mi USA13th Hardrock Hundred Endurance Run 44:45:20 h61
2005
17.09 50mi USA2nd Moab's Alpine to Slickrock 50mi 13:02:45 h22
2004
11.09 100mi USA25th Wasatch Front 100 Mile 34:06:19 h93
2003
23.08 100mi USA5th Cascade Crest Classic 100 Mile 31:28:00 h39
01.02 100mi USA11th Rocky Raccoon 100 Mile Trail Run 25:53:10 h43
2001
16.06 50mi USA7th San Juan Solstice 50 Mile Run 14:17:42 h37
16.06 50mi USA10th Bighorn Mountain Wild & Scenic 50mi Trail Run 13:07:34 h33
2000
30.07 100mi USA4th Mount Rushmore Trail 100 Mile Run 33:40:45 h16
1999
24.09 100mi USA1st The Bear 100 Mile Endurance Run 33:46:43 h8
09.07 100mi USA7th Hardrock Hundred Endurance Run 45:47:38 h52
1998
22.08 100mi USA16th Leadville Trail 100 Mile 29:26:35 h171
1997
27.09 100mi USA12th Angeles Crest 100 Mile 29:21:40 h54
28.06 100mi USA24th Western States 100 Mile Endurance Run 28:54:08 h197
1996
06.09 100mi USA17th Wasatch Front 100 Mile 33:28:30 h73
1995
30.09 100mi USA10th Angeles Crest 100 Mile 29:28:54 h53
1994
20.08 100mi USA12th Leadville Trail 100 Mile 27:44:04 h82
1992
11.09 100mi USA13th Wasatch Front 100 Mile 30:20:36 h44
Unknown date
— 100mi USA34th Rocky Raccoon 100 Mile Trail Run 28:04:12 h166