Brian Chiles
Born : 1973 Cat. M50 Ultrarunner since 2010 USA
50
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
59,9%
Rank quotient ?This runner's calculation uses 88 eligible race(s): Σ(rank − 1) = 5 170; Σ finishers = 8 624. 5 170 / 8 624 × 100 = 59.95%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed88
Km — ultra races6 430 km
> 100 km9
> 160 km8
> 24h3
Longest race160,9 km

Km per year (ultra races)

355
7 races
2022
50
1 race
2023
53
1 race
2024
241
2 races
2025
2026

Race types (share of distance)

Road9,9%
Trail90,1%

Wins & podiums (ultra)

🏆 Win0
🏆 Win M0
🏅 Top 32
🏅 Top 3 M3
Longest winning streak0
Current streak0

HISTORY

88 race(s)
DateRacePerf.Rk
2025
08.11 100mi USA12th Tunnel Hill 100 Mile Race 27:21:21 h138
30.08 50mi USA7th Tuscazoar 50 Mile Trail Race 11:47:41 h10
2024
14.09 53km USA10th Rockin Rockwoods Trail Race 8:59:44 h38
2023
28.10 50km USA10th PB&J Fat Ass 50K 6:53:39 h17
2022
17.09 12h USA17th 12 Hour Adventure Trail Run 51.659 km44
23.07 50km USA10th Catherine's 50k Run 8:11:00 h33
09.07 50km USA27th Catoctin 50k Trail Run 8:05:18 h67
25.06 50km USA6th Night Train 50k 6:03:21 h35
23.04 50km USA7th Chopawamsic Challenge 50K 7:14:57 h3 🥉
05.02 8h USA17th 8 Hour Adventure Trail Run - ICY 52.947 km20
01.01 50km USA24th Red Eye 50km 6:36:50 h16
2021
11.12 50km USA23th Magnus Gluteus Maximus 50 km 6:58:00 h22
13.11 50mi USA12th Stone Mill 50 Mile Run 11:59:21 h130
16.10 100km USA8th Cloudsplitter 100 - 100 km Run 22:09:30 h6
04.09 100mi USA3rd Tuscazoar 100 Mile Trail Race 28:55:47 h11
10.07 50km USA26th Catoctin 50k Trail Run 7:53:10 h66
23.04 50km USA6th Chopawamsic Challenge 50K 7:07:24 h13
10.04 50km USA9th Singletrack Maniac 50k Trail Run 7:15:47 h65
06.02 8h USA16th 8 Hour Adventure Trail Run - ICY 51.499 km41
2020
05.12 50km USA5th Devil Dog Ultra 50 km Race 6:50:00 h39
14.11 50mi USA11th Stone Mill 50 Mile Run 12:16:24 h108
19.09 12h USA15th 12 Hour Adventure Trail Run 80.789 km16
29.02 50km USA11th Hashawha Hills 50 km Trail Run 6:28:51 h51
01.02 50mi USA3rd Light to Light 50 Mile 9:47:46 h18
19.01 50km USA5th Waterfall 50km 8:23:55 h38
01.01 50km USA23rd Red Eye 50km 6:41:00 h23
2019
09.11 50mi USA10th Stone Mill 50 Mile Run 11:10:37 h85
09.08 36h USA1st Buffalo Mountain Endurance 36 Hour Run 160.934 km7
13.04 50mi USA27th Bull Run Run 50 Miler 11:55:54 h82
30.03 9h USA3rd Miocene Epic 9 Hour Endurance Challenge 50.694 km10
23.02 50km USA10th Hashawha Hills 50 km Trail Run 6:19:22 h39
02.02 50mi USA2nd Light to Light 50 Mile 10:58:59 h31
2018
01.12 100km USA3rd Devil Dog Ultra 100 km Race 16:03:43 h30
17.11 50mi USA9th Stone Mill 50 Mile Run 11:27:03 h93
20.10 100mi USA5th Uwharrie 100 Mile Trail Run 32:22:18 h12
28.07 50km USA7th Catherine's 50k Run 7:13:00 h29
14.07 50km USA7th Dirty Burg 50K Trail Run 6:24:50 h21
16.06 50km USA7th Eastern Divide Ultra 6:17:10 h75
21.04 100km USA3rd Chopawamsic Challenge 100K 15:40:04 h2 🥈
24.03 9h USA2nd Miocene Epic 9 Hour Endurance Challenge 51.177 km13
03.03 100km USA5th Blind Pig 100 km Ultra Marathon 12:56:28 h7
03.02 50mi USA1st Light to Light 50 Mile 10:06:59 h22
2017
11.11 50mi USA8th Stone Mill 50 Mile Run 12:15:37 h157
06.10 100mi USA9th Grindstone 100 Mile 32:57:07 h130
02.09 71.1mi USA15th The Ring 71-mile Run 24:12:00 h33
01.07 50km USA1st Night Train 50k 6:11:06 h18
10.06 50mi USA6th OSS/CIA 50 Mile Night Run 12:52:51 h21
13.05 50km USA7th Ultra Race of Champions (UROC) 50K 7:45:52 h29
08.04 50mi USA25th Bull Run Run 50 Miler 10:46:20 h126
04.03 50km USA13th Seneca Creek Greenway Trail 50k 7:19:58 h105
18.02 50km USA4th Frozen Heart Trail Race 7:16:43 h50
04.02 8h USA12th 8 Hour Adventure Trail Run 51.499 km25
2016
12.11 50mi USA7th Stone Mill 50 Mile Run 12:29:21 h170
22.10 100km USA3rd Uwharrie 100 km Trail Run 24:12:29 h20
24.07 50km USA8th Rosaryville 50 km Trail Run 7:24:36 h54
21.05 50km USA3rd Knock on Wood Ultra - Forest Freak 50k 7:20:18 h36
09.04 50km USA9th Endurance Challenge - Washington D.C. Trail 50 km 7:16:01 h224
19.03 50km USA3rd Badwater Cape Fear 50 km 6:52:00 h18
12.03 50km USA12th Bel Monte 50 km Endurance Run 9:11:30 h46
20.02 50km USA3rd Frozen Heart Trail Race 7:29:58 h41
06.02 8h USA11th 8 Hour Adventure Trail Run 51.499 km42
2015
05.12 50km USA18th Magnus Gluteus Maximus 50 km 7:37:00 h70
14.11 50mi USA6th Stone Mill 50 Mile Run 12:41:34 h243
10.10 50km USA2nd PB&J Fat Ass 50K 6:44:00 h20
23.05 24h USA3rd Sole Challenge 24 Hour Run 54.772 km17
18.04 50km USA8th Endurance Challenge - Washington D.C. Trail 50 km 7:26:48 h292
28.03 50mi USA3rd Darkside Distance Festival - Running Dead 50M Ultra 11:37:00 h13
2014
15.11 50mi USA5th Stone Mill 50 Mile Run 11:46:11 h192
20.09 12h USA9th 12 Hour Adventure Trail Run 62.764 km46
14.06 50mi USA3rd OSS/CIA 50 Mile Night Run 13:22:45 h31
26.04 100mi USA2nd C&O Canal 100 Mile 28:15:00 h51
08.03 100mi USA3rd Graveyard 100 Mile Ultramarathon 28:12:56 h70
04.01 100mi USA2nd The Pistol 100 Mile Ultra Run 26:56:55 h33
2013
16.11 50mi USA4th Stone Mill 50 Mile Run 11:26:04 h159
07.09 40mi USA4th Odyssey Trail Running Rampage 40 Mile 11:08:45 h31
03.08 50km USA5th Dahlgren Heritage Rail Trail 50K 6:32:07 h66
21.07 50km USA5th Rosaryville 50 km Trail Run 6:48:05 h44
23.03 50mi USA4th New Jersey Ultra Festival 50 Mile Race 10:26:12 h22
02.03 50km USA9th Seneca Creek Greenway Trail 50k 7:11:47 h115
05.01 100km USA1st The Pistol 100 km Ultra Run 15:59:00 h6
2012
15.12 50km USA15th Magnus Gluteus Maximus 50 km 6:46:00 h70
17.11 50mi USA3rd Stone Mill 50 Mile Run 10:43:16 h113
28.07 50km USA17th Catoctin 50k Trail Run 8:31:15 h101
02.06 50mi USA5th Endurance Challenge - Washington D.C. Trail 50 Miles 11:39:29 h204
21.04 24h USA7th 24 Hour Adventure Trail Run 50.292 km42
2011
24.09 50km USA1st Über Rock 50K 7:23:37 h63
2010
20.11 50mi USA1st Stone Mill 50 Mile Run 12:36:39 h92
28.08 50mi USA11th North Country Trail Run 50 Mile 13:10:54 h81