Thomas Dehaan
ID 277004
Born : 1962 Cat. M60 Ultrarunner since 2007 USA
41
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
47
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
26,2%
Rank quotient ?This runner's calculation uses 41 eligible race(s): Σ(rank − 1) = 1 099; Σ finishers = 4 194. 1 099 / 4 194 × 100 = 26.20%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed41
Km — ultra races3 057 km
> 100 km3
> 160 km3
Longest race160,9 km
38th Wasatch Front 100 Mile — 8/9/2017

Km per year (ultra races)

262
4 races
2022
259
4 races
2023
87
1 race
2024
151
2 races
2025
151
2 races
2026

Race types (share of distance)

Road2,1%
Trail97,9%

Wins & podiums (ultra)

🏆 Win0
🏆 Win M0
🏅 Top 33
🏅 Top 3 M4
Longest winning streak0
Current streak0

Records

50 km4h25'4050 mi11h15'00100 mi28h58'0812 h62,76 km

HISTORY

41 race(s)
DateRacePerf.Rk
2026
20.06 54mi USA14th Manitou's Revenge Ultramarathon 18:10:21 h51
21.03 40mi USA15th The Mt. Tammany 10 11:54:22 h23
2025
21.06 54mi USA13th Manitou's Revenge Ultramarathon 18:16:53 h61
22.03 40mi USA14th The Mt. Tammany 10 10:55:36 h19
2024
22.06 54mi USA12th Manitou's Revenge Ultramarathon 18:54:33 h59
2023
19.08 50km USA1st Fabulous Fahnestock Trail Races 7:28:46 h18
29.07 36mi USA12th Moosalamoo Ultra 8:37:33 h28
24.06 54mi USA11th Manitou's Revenge Ultramarathon 16:18:05 h44
25.03 40mi USA12th The Mt. Tammany 10 10:42:49 h14
2022
10.09 30mi USA9th Shawangunk Ridge Trail 30-mile Run 7:02:50 h5
25.06 54mi USA10th Manitou's Revenge Ultramarathon 17:06:54 h42
05.06 12h USA1st Death by Staircase 12hr 62.764 km2 🥈
26.03 40mi USA11th The Mt. Tammany 10 9:39:33 h10
2021
26.06 54mi USA9th Manitou's Revenge Ultramarathon 16:29:48 h43
2019
22.06 54mi USA7th Manitou's Revenge Ultramarathon 14:58:02 h30
07.04 70km USA5th Paumanok Pursuit 70K Trail Run 7:33:00 h11
23.03 40mi USA8th The Mt. Tammany 10 9:53:21 h17
2018
08.09 50mi USA1st Kilkenny Ridge 50mi Race 14:40:22 h9
23.06 54mi USA6th Manitou's Revenge Ultramarathon 14:00:06 h15
08.04 70km USA4th Paumanok Pursuit 70K Trail Run 7:59:11 h10
2017
08.09 100mi USA38th Wasatch Front 100 Mile 34:51:20 h171
17.06 54mi USA5th Manitou's Revenge Ultramarathon 14:23:24 h21
30.04 50km USA8th Ironmasters Challenge 50k Ultra 5:34:33 h2 🥈
2016
18.06 54mi USA4th Manitou's Revenge Ultramarathon 15:52:57 h25
19.03 50km USA28th The HAT Run 50K 5:15:19 h37
2015
11.09 100mi USA25th Superior Fall Trail Races 100 Mile 28:58:08 h29
20.06 54mi USA3rd Manitou's Revenge Ultramarathon 14:39:26 h21
21.03 50km USA27th The HAT Run 50K 5:20:45 h31
03.01 50km USA19th Recover from the Holidays 50K 5:02:35 h14
2014
16.08 100mi USA1st Eastern States 100 Mile 31:57:16 h35
21.06 54mi USA2nd Manitou's Revenge Ultramarathon 15:29:52 h25
22.03 50km USA26th The HAT Run 50K 5:15:52 h44
05.01 50km USA18th Recover from the Holidays 50K 4:25:40 h2 🥈
2013
22.06 54mi USA1st Manitou's Revenge Ultramarathon 17:48:42 h20
11.05 50km USA11th Long Island Greenbelt Trail 50 km 5:39:35 h19
23.03 50km USA25th The HAT Run 50K 5:03:39 h38
23.02 50km USA5th Hashawha Hills 50 km Trail Run 5:11:24 h23
05.01 50km USA17th Recover from the Holidays 50K 4:43:36 h4
2012
22.09 50mi USA5th Virgil Crest 50 Mile Ultra 11:15:00 h23
24.03 50km USA24th The HAT Run 50K 5:06:09 h33
2007
21.07 52.5km USA7th Damn Wakely Dam Ultra 6:21:41 h12