Sean Humphrey
ID 100176
Born : 1974 Cat. M50 Ultrarunner since 2007 USA
50
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
66
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
46,5%
Rank quotient ?This runner's calculation uses 64 eligible race(s): Σ(rank − 1) = 3 334; Σ finishers = 7 163. 3 334 / 7 163 × 100 = 46.54%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed64
Km — ultra races6 745 km
> 100 km28
> 160 km23
> 200 km1
> 24h8
> 48h3
Longest race402,3 km
6th Cocodona 250 — 4/5/2026

Km per year (ultra races)

753
6 races
2022
700
5 races
2023
476
4 races
2024
564
5 races
2025
402
1 race
2026

Race types (share of distance)

Road4,7%
Trail83,8%
Elim.11,5%

Wins & podiums (ultra)

🏆 Win1
🏆 Win M1
🏅 Top 32
🏅 Top 3 M3
Longest winning streak1
Current streak0

Records

50 km5h16'58100 km16h24'4050 mi10h05'00100 mi20h34'2712 h87,53 km24 h104,45 kmBackyard25 loops

HISTORY

64 race(s)
DateRacePerf.Rk
2026
04.05 250mi USA6th Cocodona 250 4d 11:54:14 h128
2025
24.10 100mi USA9th No Business 100 33:00:35 h167
06.09 100mi USA14th Mogollon Monster 100 Mile 34:43:32 h77
21.06 54mi USA13th Manitou's Revenge Ultramarathon 21:10:03 h81
07.06 55km USA8th Dam Yeti 55 km Race 7:04:13 h67
22.03 Backyard Ultra USA7th Ohio's Backyard Ultra 100.590 km (15h)40
2024
07.12 100km USA22nd Hellgate 100 km 16:30:00 h90
27.09 100mi USA26th The Bear 100 Mile Endurance Run 30:54:14 h136
18.05 100mi USA30th Massanutten Mountain Trails 100 Mile 33:56:50 h90
23.03 Backyard Ultra USA6th Ohio's Backyard Ultra 53.648 km (8h)79
2023
04.11 100mi USA16th Pinhoti 100 Mile 26:46:12 h48
22.09 100mi USA15th Grindstone 100 Mile 34:58:51 h148
18.06 100mi USA31st Bighorn Mountain Wild & Scenic 100 Mile Trail Run 32:49:14 h139
03.06 50km USA6th Dam Yeti 50 km Race 5:18:42 h9
18.03 Backyard Ultra USA5th Ohio's Backyard Ultra 167.650 km (25h)20
2022
10.12 100mi USA6th Beast of the East (Monadnock Ultra) 100 Mile 29:45:31 h14
23.10 50km USA20th Stone Steps 50K Trail Run 6:44:29 h16
20.08 100mi USA40th Leadville Trail 100 Mile 28:48:55 h219
13.05 106mi USA10th Cruel Jewel 100 Mile 41:50:34 h91
02.04 100mi USA27th Umstead Endurance Run 100 Miles 20:34:27 h23
19.02 50km USA1st Cabin Fever 50 km Race 6:21:34 h71
2021
04.12 40h USA2nd The Tennessee Mile 40 Hour Run 120.378 km10
24.09 100mi USA7th The Yeti 100 Mile Endurance Run 21:22:56 h31
05.06 100mi USA43rd Old Dominion 100 Mile Endurance Run 27:05:07 h38
20.03 Backyard Ultra USA3rd Ohio's Backyard Ultra 167.650 km (25h)31
15.01 100mi USA3rd Fierce Dragon - Firestarter 100M 41:49:00 h2 🥈
2020
05.12 24h USA1st The Tennessee Mile 24 Hour Run 104.446 km7
14.11 Backyard Ultra USA2nd Ohio's Backyard Ultra 120.708 km (18h)26
16.10 103mi USA4th No Business 100 29:38:49 h65
19.09 50km USA5th Grayson Highlands 50km Race 7:41:14 h87
12.09 45mi USA3rd Breaks Ultra Race 12:58:11 h21
08.02 50km USA17th Louisville's Love'n the Hills (LLTH 50K) 7:02:28 h46
04.01 50km USA11th Frozen Sasquatch 50 km Trail Race 6:25:42 h25
2019
14.12 100km USA17th Hellgate 100 km 16:24:40 h79
04.10 100mi USA11th Grindstone 100 Mile 31:59:34 h133
07.09 45mi USA2nd Breaks Ultra Race 13:48:25 h33
13.07 50mi USA11th Dawg Gone Long Run 50 Miler 10:34:15 h5
04.05 40mi USA41st Strolling Jim 40 Mile 7:31:51 h72
23.03 Backyard Ultra USA1st Ohio's Backyard Ultra 167.650 km (25h)8
2018
30.11 100mi USA2nd Chattanooga 100 Mile Trail Race 28:39:44 h24
30.06 50mi USA10th Dawg Gone Long Run 50 Miler 12:05:07 h11
19.05 31mi USA12th Tie Dye 50k 6:11:29 h16
05.05 40mi USA40th Strolling Jim 40 Mile 6:51:26 h43
31.03 68mi USA6th Georgia Death Race 22:51:03 h145
2017
21.10 50km USA3rd Broken Toe 50k 7:57:29 h15
08.07 50km USA23th Buckeye Trail 50k 6:06:42 h42
24.06 50mi USA9th Dawg Gone Long Run 50 Miler 10:05:00 h8
20.05 31mi USA11th Tie Dye 50k 6:32:58 h24
13.05 50km USA14th Dances with Dirt - Gnaw Bone 50 km Ultra 6:23:15 h17
25.03 50km USA20th OPSF Ultra 50 km Race 6:37:22 h4
2016
10.12 50km USA7th Bigfoot 50K Trail Race 6:10:45 h32
29.10 50km USA2nd Broken Toe 50k 6:10:03 h1 🏆
14.05 32mi USA10th Tie Dye 32 Miler 5:44:55 h14
2014
01.11 50mi USA32nd Mountain Masochist 50 Mile Trail Run 10:36:33 h103
26.04 32mi USA8th Tie Dye 32 Miler 5:11:00 h4
2013
05.10 12h USA1st Outdoor X 12 Hour Endurance Run 87.532 km11
27.04 50km USA7th Tie Dye 50k 5:35:00 h11
2012
22.09 50km USA18th Germantown 50k 5:17:43 h9
28.07 100mi USA6th Burning River 100 Mile Endurance Run 28:16:40 h139
28.04 50km USA6th Tie Dye 50k 5:16:58 h19
2011
23.04 50km USA5th Tie Dye 50k 5:30:55 h21
2010
21.08 50km USA16th Germantown 50k 5:30:13 h11
2009
07.11 50mi USA27th Mountain Masochist 50 Mile Trail Run 11:16:46 h152
2007
16.06 100mi USA18th Mohican Trail 100 Mile 26:53:09 h50