James Clark
ID 698129
Born : 1974 Cat. M50 Ultrarunner since 2015 USA
41
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
51
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
67,4%
Rank quotient ?This runner's calculation uses 41 eligible race(s): Σ(rank − 1) = 2 896; Σ finishers = 4 299. 2 896 / 4 299 × 100 = 67.36%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed41
Km — ultra races3 805 km
> 100 km13
> 160 km10
> 24h2
Longest race160,9 km
3rd Oregon Cascades 100 Mile Race — 26/8/2023

Km per year (ultra races)

530
6 races
2022
377
3 races
2023
130
2 races
2024
200
3 races
2025
2026

Race types (share of distance)

Road2,6%
Trail97,4%

Wins & podiums (ultra)

🏆 Win0
🏆 Win M0
🏅 Top 32
🏅 Top 3 M2
Longest winning streak0
Current streak0

Records

50 km5h55'51100 km16h15'2650 mi11h12'16100 mi26h42'1612 h67,72 km24 h100,26 km

HISTORY

41 race(s)
DateRacePerf.Rk
2025
01.11 50km USA12th Silver Falls Trail Run 8:22:39 h168
16.08 100km USA7th Olympic Mountains 100 km Race 18:49:36 h24
02.08 50km USA13th Volcanic 50 9:01:35 h65
2024
08.06 50mi USA15th Lumberjack Endurance 50 Mile Run 13:10:00 h11
20.04 50km USA14th Yakima Skyline Rim 50k 9:19:47 h52
2023
26.08 100mi USA3rd Oregon Cascades 100 Mile Race 31:06:45 h155
17.06 100mi USA14th Lumberjack Endurance 100 Mile Run 29:53:00 h13
25.03 55km USA13th Badger Mountain 55 km Challenge 8:49:32 h54
2022
22.07 100mi USA24th Cascade Crest Classic 100 Mile 32:48:19 h100
11.06 100km USA13th Lumberjack Endurance 100 km Run 16:32:00 h5
30.05 50km USA8th Stumptown Trail Run 50K 5:55:51 h57
26.03 74mi USA10th Georgia Death Race 22:16:50 h78
19.02 50km USA4th Run Forest Run 50k Race 7:15:00 h27
22.01 50km USA18th Capitol Peak MegaFatAss 6:31:21 h43
2021
25.09 36mi USA1st Devil's Gulch 36 Mile Race 9:25:26 h20
05.06 100mi USA7th The Loco Go Big or Go Home Challenge 100M 29:11:36 h7
22.05 50km USA5th Dirty Turtle 50k 7:36:00 h19
26.03 100mi USA11th Badger Mountain 100 Mile Challenge 29:37:49 h54
2019
29.06 100mi USA46th Western States 100 Mile Endurance Run 29:33:49 h295
01.06 100km USA5th The Loco Go Big or Go Home Challenge 100K 16:15:26 h7
18.05 50km USA3rd Dirty Turtle 50k 7:13:54 h13
28.04 50km USA4th Tillamook Burn Trail Run 50 km 7:17:35 h98
2018
24.08 12h USA2nd Night Crawler 12 Hour Endurance Challenge 67.592 km3 🥉
04.08 53mi USA4th Sheep Mountain 50 Mile Endurance Run 14:06:00 h24
09.06 28mi USA4th South Park Trail Marathon 6:16:00 h21
12.05 12h USA5th Tommyknocker Ultramarathons 12-Hour 67.721 km17
21.04 24h USA5th 24 Hours of Palmer Lake Fun Run 100.262 km37
24.02 30h USA1st Stories Ultra 30 Hour Run 103.818 km2 🥈
03.02 100mi USA26th Rocky Raccoon 100 Mile Trail Run 26:42:16 h109
2017
09.12 55km USA1st Sawmill 55k Race 9:09:00 h24
08.09 100mi USA38th Wasatch Front 100 Mile 35:30:44 h189
16.06 100mi USA5th Bryce 100 Mile Trail Run 34:01:32 h97
15.04 50mi USA9th Lake Sonoma 50 Mile Race 12:15:54 h209
2016
15.10 52mi USA3rd Indian Creek Fifties - 52 Miles 13:57:00 h21
23.07 100km USA2nd Never Summer 100k 20:53:04 h134
17.06 100mi USA24th Bighorn Mountain Wild & Scenic 100 Mile Trail Run 33:50:54 h172
14.05 50mi USA5th Quad Rock 50 Mile 12:47:54 h82
2015
05.12 50mi USA9th Endurance Challenge - California Trail 50 Mile 11:12:16 h302
17.10 52mi USA2nd Indian Creek Fifties - 52 Miles 13:11:00 h26
12.09 50km USA2nd Devil on the Divide Ultra 9:12:14 h64
27.06 50km USA6th North Fork 50 km Trail Race 6:32:57 h39