Brian Cox
Born : 1979 Cat. M45 Ultrarunner since 2013 USA
29
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
46
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
50,1%
Rank quotient ?This runner's calculation uses 29 eligible race(s): Σ(rank − 1) = 2 103; Σ finishers = 4 199. 2 103 / 4 199 × 100 = 50.08%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed29
Km — ultra races2 646 km
> 100 km7
> 160 km7
Longest race160,9 km

Km per year (ultra races)

2022
2023
100
1 race
2024
2025
2026

Race types (share of distance)

Trail100,0%

Wins & podiums (ultra)

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

HISTORY

29 race(s)
DateRacePerf.Rk
2024
27.04 100km USA11th The Canyons Endurance 100 km Run 13:52:42 h94
2021
27.11 50km USA5th Napa Valley 50k Trail Race 7:09:55 h12
16.10 100km USA8th Cloudsplitter 100 - 100 km Run 26:57:19 h21
2019
06.07 50mi USA12th Leadville Silver Rush 50 Mile Run 11:57:25 h352
01.06 50km USA10th North Fork 50 km Trail Race 7:22:26 h102
2018
27.05 50km USA41st Rocky Mountain 50k 5:32:43 h2 🥈
14.04 50km USA4th Rattler Trail Race 50K 6:21:00 h28
27.01 50mi USA1st Arches Ultra 50 Mile Race 11:33:49 h43
2017
28.10 100mi USA15th Javelina Jundred 100 Mile Endurance Run 23:26:18 h100
29.09 100mi USA19th The Bear 100 Mile Endurance Run 33:53:38 h182
29.07 50mi USA3rd Pikes Peak Ultra 50 Mile 13:17:31 h43
16.06 100mi USA5th Bryce 100 Mile Trail Run 33:07:45 h85
03.06 50km USA9th Golden Gate Dirty 30 8:10:39 h216
28.05 50km USA40th Rocky Mountain 50k 5:12:05 h3 🥉
17.03 100mi USA12th Antelope Island Buffalo Run 100 Mile 25:21:02 h13
24.02 100mi USA2nd Orcas Island 100 Mile Race 34:16:06 h37
2016
27.08 100mi USA12th Lean Horse Ultra-Marathon 100 Mile 21:19:59 h6
10.07 50mi USA9th Leadville Silver Rush 50 Mile Run 12:28:24 h246
17.06 100mi USA24th Bighorn Mountain Wild & Scenic 100 Mile Trail Run 30:58:08 h115
04.06 50km USA7th North Fork 50 km Trail Race 6:16:39 h33
14.05 50mi USA5th Quad Rock 50 Mile 11:44:29 h64
2015
27.09 100km USA6th The Bear Chase 100 km 12:26:28 h8
19.06 52mi USA23rd Bighorn Mountain Wild & Scenic 50mi Trail Run 12:19:51 h60
30.05 50km USA7th Golden Gate Dirty 30 7:19:58 h159
25.04 50km USA5th Cheyenne Mountain Trail Race 5:55:09 h16
11.04 45mi USA4th Cedro Peak 45 Mile Ultramarathon 10:20:12 h29
28.03 50mi USA3rd Prairie Spirit 50 Mile Trail Ultra Race 8:06:10 h10
2014
03.05 50mi USA15th Collegiate Peaks 50 Miles 11:21:00 h48
2013
13.10 50km USA7th Boulder 50 km Run 5:01:00 h5