Jeffrey Browning
ID 15833
Born : 1971 Cat. M55 Ultrarunner since 2001 USA
80
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
85
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
5
Countries visited ?CHIChileFRAFranceJPNJapanNZLNew ZealandUSAUnited States
4,2%
Rank quotient ?This runner's calculation uses 132 eligible race(s): Σ(rank − 1) = 762; Σ finishers = 18 334. 762 / 18 334 × 100 = 4.16%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed134
Km — ultra races15 376 km
> 100 km61
> 160 km59
> 200 km4
> 24h1
Longest race402,3 km
6th Cocodona 250 — 4/5/2026

Km per year (ultra races)

1 247
8 races
2022
975
7 races
2023
874
5 races
2024
533
4 races
2025
644
3 races
2026

Race types (share of distance)

Road1,5%
Trail97,5%
Stage1,0%

Wins & podiums (ultra)

🏆 Win48
🏆 Win M49
🏅 Top 373
🏅 Top 3 M73
Longest winning streak5
Current streak0

Records

50 km3h42'28100 km8h30'0850 mi6h36'25100 mi15h45'386 h70,39 km12 h83,85 km24 h161,20 km

HISTORY

133 race(s) · 3 split(s) nested
DateRacePerf.Rk
2026
27.06 100mi USA53rd Western States 100 Mile Endurance Run 18:03:38 h38
04.05 250mi USA6th Cocodona 250 2d 22:56:04 h15
07.02 50mi USA14th Elephant Mountain 50 Mile 8:28:12 h3 🥉
2025
20.12 50km USA16th Cave Creek Thriller 50K Race 4:19:47 h2 🥈
28.06 100mi USA52nd Western States 100 Mile Endurance Run 19:12:58 h29
05.04 100mi USA3rd The Bootlegger 100 Mile Trail 17:22:26 h1 🏆
22.02 100mi USA12th Lake Ouachita Vista Trail Endurance 100 Mile Run (LOViT) 17:56:52 h1 🏆
2024
30.12 6h USA41th Across the Years, 6h 70.387 km1 🏆
19.07 100mi USA8th High Lonesome 100 Mile 21:49:03 h4
06.05 401.4km USA4th Cocodona 250 Mile Race 2d 12:19:57 h2 🥈
09.03 50mi USA15th Mesquite Canyon 50 Mile 7:51:27 h2 🥈
20.01 100mi USA14th Coldwater Rumble 100 Mile Race 15:45:38 h1 🏆
2023
08.09 100mi USA44th Wasatch Front 100 Mile 21:34:30 h2 🥈
14.07 100mi USA30th Hardrock Hundred Endurance Run 27:17:02 h6
18.06 100mi USA31st Bighorn Mountain Wild & Scenic 100 Mile Trail Run 19:47:19 h1 🏆
03.05 125mi USA3rd Cocodona 125 Mile Race 25:29:22 h1 🏆
11.03 50mi USA14th Mesquite Canyon 50 Mile 8:47:33 h1 🏆
04.02 50km USA11th Elephant Mountain 50 km 4:32:11 h1 🏆
14.01 100mi USA13th Coldwater Rumble 100 Mile Race 18:07:29 h1 🏆
2022
10.12 100mi USA13th Desert Solstice Track Invitational - 100mi Split 15:31:51 h8
10.12 24h USA13th Desert Solstice 24 Hour Run 161.199 km16
07.10 238mi USA6th Moab 240 Endurance Run 2d 09:27:57 h1 🏆
15.07 100mi USA29th Hardrock Hundred Endurance Run 26:17:43 h5
03.06 100mi USA9th Scout Mountain 100 Mile Ultra Trail 20:38:36 h1 🏆
19.03 50mi USA18th Three Days of Syllamo 50 Mile Run 7:34:59 h1 🏆
18.03 50km USA18th Three Days of Syllamo 50 km Run 4:34:18 h2 🥈
18.03 150km/3stages USA18th Three Days of Syllamo Stage Race 14:03:53 h1 🏆
05.02 100km USA9th Sean O'Brien 100 km Trail Race 9:34:06 h2 🥈
2021
03.12 100mi USA9th Blood Rock 100 Mile Endurance Race 22:35:30 h1 🏆
11.09 106mi USA10th Mogollon Monster 100 Mile 20:52:07 h1 🏆
16.07 100mi USA28th Hardrock Hundred Endurance Run 26:58:16 h5
10.04 100mi USA10th The Zion 100 Mile Run 17:44:24 h1 🏆
2020
01.08 100km USA6th Tushars 100km Mountain Runs 13:50:42 h4
22.02 12h USA1st Running Up For Air - Mt. Sentinel 83.846 km1 🏆
2019
22.11 100mi USA7th Blood Rock 100 Mile Endurance Race 19:37:17 h1 🏆
27.09 100mi USA21st The Bear 100 Mile Endurance Run 19:06:00 h1 🏆
29.06 100mi USA46th Western States 100 Mile Endurance Run 15:55:06 h9
06.04 50mi USA5th Ozarks Foothills 50M 7:32:49 h3 🥉
23.03 50km USA14th Antelope Island Buffalo Run 50 km 4:00:42 h1 🏆
09.02 100mi NZL2nd Tarawera 100 Mile Endurance Run 16:18:55 h1 🏆
2018
03.11 100mi USA11th Pinhoti 100 Mile 16:30:35 h1 🏆
14.09 100mi USA12th Run Rabbit Run 100 Mile UltraMarathon - Hares Run 19:51:44 h3 🥉
20.07 100mi USA25th Hardrock Hundred Endurance Run 26:20:21 h1 🏆
23.06 100mi USA45th Western States 100 Mile Endurance Run 16:45:29 h5
19.05 50mi USA33rd Silver State 50 Mile 7:36:03 h2 🥈
23.03 100mi USA13th Antelope Island Buffalo Run 100 Mile 15:58:20 h1 🏆
2017
29.09 100mi USA19th The Bear 100 Mile Endurance Run 18:28:48 h1 🏆
01.09 167.7km FRA15ème Ultra Trail Tour du Mont Blanc 22:55:52 h20
24.06 100mi USA44th Western States 100 Mile Endurance Run 17:32:06 h4
22.04 50km USA7th Yakima Skyline Rim 50k 5:07:11 h1 🏆
11.03 68mi USA3rd Coyote Cohorts Backbone 68 Mile Trail Ultra 11:36:43 h1 🏆
17.02 50km USA17th Hagg Lake Trail Runs 50K 3:57:41 h1 🏆
2016
10.12 50km USA7th Frozen Trail Runfest 4:25:48 h1 🏆
16.09 100mi USA10th Run Rabbit Run 100 Mile UltraMarathon - Hares Run 19:38:48 h4
15.07 100mi USA23rd Hardrock Hundred Endurance Run 25:42:00 h4
25.06 100mi USA43rd Western States 100 Mile Endurance Run 16:30:40 h3 🥉
16.04 100km USA10th Vasque Free State Trail 100 km Run 8:30:08 h1 🏆
16.01 100mi USA16th HURT 100 Endurance Run 100 Mile 21:22:49 h1 🏆
2015
25.09 170.3km JPN4th Ultra-Trail Mt. Fuji 22:01:01 h3 🥉
11.07 100km USA2nd Beaverhead 100K Endurance Run 10:37:34 h2 🥈
16.04 173km CHI1st Ultra Fiord Patagonia Chile 100mi 24:25:39 h1 🏆
28.03 100km USA5th Gorge Waterfalls 100k 10:26:08 h7
14.02 50km USA15th Hagg Lake Trail Runs 50K 3:51:29 h2 🥈
2014
03.10 100mi USA6th Grindstone 100 Mile 18:34:40 h1 🏆
12.09 100mi USA8th Run Rabbit Run 100 Mile UltraMarathon - Hares Runs 19:06:43 h3 🥉
11.07 100mi USA21st Hardrock Hundred Endurance Run 26:58:00 h4
14.06 50km USA1st Smith Rock Ascent 50K 4:07:54 h1 🏆
04.04 100mi USA3rd The Zion 100 Mile Run 16:49:53 h1 🏆
23.02 50km USA7th Lord Hill Trail Run 4:53:16 h3 🥉
2013
13.09 100mi USA7th Run Rabbit Run 100 Mile UltraMarathon - Hares Run 18:52:00 h3 🥉
27.07 50mi USA15th Siskiyou Out Back 50 Miles Trail Run 7:16:45 h2 🥈
08.06 100mi USA12th San Diego 100 Mile Endurance Run 16:59:24 h1 🏆
11.05 50mi USA32nd Ice Age Trail 50 Mile Run 6:36:25 h8
30.03 50km USA3rd Gorge Waterfalls 50k 3:42:28 h6
13.01 100km trail race USA13th Bandera 100 km Ultratrail 9:37:52 h7
13.01 100km USABandera 100 km Ultratrail - US Championchips 9:37:52 h6
2012
07.09 100mi USA33rd Wasatch Front 100 Mile 19:33:30 h1 🏆
14.07 50mi USA14th Siskiyou Out Back 50 Miles Trail Run 7:26:54 h6
09.06 100mi USA11th San Diego 100 Mile Endurance Run 16:38:59 h1 🏆
19.05 50km USA27th Silver State 50 km 4:17:59 h1 🏆
14.04 50mi USA4th Lake Sonoma 50 Mile Race 7:40:19 h14
25.03 50km USA2nd Gorge Waterfalls 50k 3:55:59 h10
17.03 50km USA20th Chuckanut 50K 4:12:52 h25
04.02 50km USA7th Orcas Island 50k 4:55:31 h6
2011
24.09 50km USA2nd Flagline Trail Fest 50K 4:02:02 h5
20.08 100mi USA29th Leadville Trail 100 Mile 18:27:03 h5
09.07 50km USA13th Siskiyou Out Back 50 km Trail Run 4:16:05 h4
05.02 50km USA6th Orcas Island 50k 5:13:26 h3 🥉
2010
28.08 100mi USA12th Cascade Crest Classic 100 Mile 18:31:09 h1 🏆
10.07 50km USA12th Siskiyou Out Back 50 km Trail Run 4:10:01 h4
18.06 100mi USA19th Bighorn Mountain Wild & Scenic 100 Mile Trail Run 20:34:09 h3 🥉
15.05 50mi USA25th Silver State 50 Mile 7:12:59 h1 🏆
11.04 60km USA8th Peterson Ridge Rumble 60 km Trail Run 4:39:28 h2 🥈
13.03 50km USA21st Way Too Cool 50K Endurance Run 4:07:13 h10
2009
07.11 100mi USA1st Ozark Trail 100 Mile Endurance Run 18:38:59 h1 🏆
19.09 100mi USA2nd Virgil Crest 100 Mile Ultra 17:34:00 h1 🏆
25.07 50mi USA17th White River 50 Mile Trail Run 7:28:28 h8
05.04 60km USA7th Peterson Ridge Rumble 60 km Trail Run 4:31:09 h6
2008
16.08 100km USA7th Where's Waldo 100K Ultramarathon 10:36:49 h6
20.06 100mi USA17th Bighorn Mountain Wild & Scenic 100mi Trail Run 18:56:28 h1 🏆
10.05 50mi USA1st Endurance Challenge - Washington Trail 50 Miles 8:40:10 h3 🥉
08.03 50km USA19th Way Too Cool 50K Endurance Run 3:52:00 h18
2007
06.10 100mi USA17th Arkansas Traveller 100 18:21:50 h1 🏆
18.08 100km USA6th Where's Waldo 100K Ultramarathon 10:50:35 h2 🥈
09.08 50km USA20th McKenzie River 50 km Trail Run 4:18:15 h12
14.07 100mi USA14th Hardrock Hundred Endurance Run 33:18:08 h15
02.06 50km USA7th Mount Diablo 50K 5:14:35 h1 🏆
24.02 50km USA7th Hagg Lake Trail Runs 50K 4:44:56 h7
2006
19.08 100km USA5th Where's Waldo 100K Ultramarathon 13:02:05 h9
16.06 100mi USA15th Bighorn Mountain Wild & Scenic 100mi Trail Run 20:24:28 h1 🏆
15.04 50mi USA3rd Capitol Peak 50 Miler 7:54:07 h2 🥈
18.03 50km USA14th Chuckanut 50K 4:38:31 h17
25.02 50km USA6th Hagg Lake Trail Runs 50K 4:10:59 h5
2005
17.06 100mi USA14th Bighorn Mountain Wild & Scenic 100mi Trail Run 21:54:59 h1 🏆
30.04 100km USA10th Miwok 100k Trail race 9:52:18 h18
10.04 60km USA3rd Peterson Ridge Rumble 60 km Trail Run 5:16:02 h11
12.03 50km USA16th Way Too Cool 50K Endurance Run 4:28:19 h27
19.02 50km USA5th Hagg Lake Trail Runs 50K 4:14:18 h6
2004
11.09 100mi USA25th Wasatch Front 100 Mile 23:32:09 h6
31.07 50mi USA12th White River 50 Mile Trail Run 8:05:20 h16
15.05 50mi USA19th Silver State 50 Miles 8:05:17 h2 🥈
18.04 35mi USA2nd Peterson Ridge Rumble 35 Mile Trail Run 4:48:12 h7
13.03 50km USA12th Chuckanut 50K 5:04:44 h34
21.02 50km USA4th Hagg Lake Trail Runs 50K 4:43:56 h16
2003
16.08 100km USA2nd Where's Waldo 100K Ultramarathon 12:57:32 h6
07.06 50mi USA7th Snow Peaks 50 Mile Trail Run 10:05:00 h23
26.04 50km USA8th McDonald Forest 50K Trail Run 5:15:56 h20
2002
29.06 100mi USA29th Western States 100 Mile Endurance Run 23:38:07 h79
04.05 100km USA7th Miwok 100k Trail race 11:40:16 h45
16.02 50km USA2nd Hagg Lake Trail Runs 50K 5:11:25 h16
2001
11.08 50mi USA3rd Mt. Hood 50 Mile Trail Run 9:12:48 h16
14.07 50km USA3rd Siskiyou Out Back 50 km Trail Run 5:19:21 h24
17.02 50km USA1st Hagg Lake Trail Runs 50K 4:51:37 h17