David Corfman
Born : 1962 Cat. M60 Ultrarunner since 2002 USA
100
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
110
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
2
Countries visited ?RSASouth AfricaUSAUnited States
50,2%
Rank quotient ?This runner's calculation uses 137 eligible race(s): Σ(rank − 1) = 13 665; Σ finishers = 27 225. 13 665 / 27 225 × 100 = 50.19%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed137
Km — ultra races20 142 km
> 100 km100
> 160 km97
> 200 km13
> 24h24
> 48h9
Longest race338,0 km

Km per year (ultra races)

1 714
10 races
2022
2 180
14 races
2023
1 611
12 races
2024
826
5 races
2025
822
5 races
2026

Race types (share of distance)

Road26,3%
Trail73,7%

Wins & podiums (ultra)

🏆 Win7
🏆 Win M11
🏅 Top 324
🏅 Top 3 M31
Longest winning streak1
Current streak0

HISTORY

139 race(s) · 4 split(s) nested
DateRacePerf.Rk
2026
25.07 100mi USA20th Burning River 100 Mile Endurance Run 27:28:48 h90
30.05 100mi USA37th Mohican Trail 100 Mile 29:53:11 h63
11.04 100mi USA26th Potawatomi 100 Mile Trail Run 35:27:00 h21
27.03 48h USA7th Vernal Equinox 48 Hour Race 178.637 km14
06.03 100mi USA45th Carl Touchstone Memorial Mississippi Trail 100 Mile 27:54:46 h13
2025
18.10 48h USA1st Double Days 48 Hour Race 209.423 km2 🥈
26.07 100mi USA19th Burning River 100 Mile Endurance Run 28:25:21 h55
31.05 100mi USA36th Mohican Trail 100 Mile 29:38:59 h70
26.04 130km USA13th Badwater Salton Sea 24:37:16 h24
07.03 35h USA8th Conquer the Wall 35 Hour Endurance Challenge 164.940 km3 🥉
2024
16.11 24h USA5th Southern Harvest 24 Hour Endurance Challenge 168.981 km2 🥈
26.10 100mi USA5th Rim to River 100 Mile Race 27:20:57 h77
21.09 24h USA1st A Day in the Park 24h 154.497 km4
17.08 12h USA5th Steel City 12 Hour Endurance Run 99.875 km5
27.07 100mi USA18th Burning River 100 Mile Endurance Run 23:55:02 h48
29.06 50mi USA16h Dawg Gone Long Run 50 Miler 11:38:15 h9
09.06 87km RSA97th Comrades Marathon - Up Run 10:53:44 h10559
01.06 100mi USA35th Mohican Trail 100 Mile 30:49:13 h66
06.04 100mi USA24th Potawatomi 100 Mile Trail Run 30:49:00 h8
09.03 100mi USA10th The Pistol 100 Mile Ultra Run 22:21:30 h9
17.02 24h USA2nd The Raven 24 Hour 165.600 km6
03.02 50km USA20th Louisville's Love'n the Hills (LLTH 50K) 9:05:12 h64
2023
02.12 100mi USA3rd Crooked Creek Ultra Trail Race 100mi 31:53:05 h6
11.11 100mi USA3rd Whispering Grace 100 Mile Race 22:46:45 h7
20.10 102mi USA7th No Business 100 32:42:16 h133
28.09 102mi USA6th Buckeye Ultra 100 Mile Road Race (Olde 96er) 21:52:38 h1 🏆
31.08 90h USA9th A Race for the Ages 321.868 km3 🥉
05.08 12h USA4th Steel City 12 Hour Endurance Run 86.228 km7
29.07 100mi USA17th Burning River 100 Mile Endurance Run 28:13:59 h72
24.06 24h USA6th Run S'more 24 Hour Race 97.848 km5
03.06 100mi USA34th Mohican Trail 100 Mile 26:47:26 h60
21.04 48h USA1st Earth Day Buckle Mania 48h 164.276 km10
15.04 100mi USA23nd Potawatomi 100 Mile Trail Run 31:28:32 h11
18.03 100mi USA9th The Pistol 100 Mile Ultra Run 23:03:04 h18
18.02 24h USA1st The Raven 24 Hour 165.999 km2 🥈
04.02 50km USA19th Louisville's Love'n the Hills (LLTH 50K) 7:52:23 h51
2022
03.12 100mi USA2nd Crooked Creek Ultra Trail Race 100mi 31:13:15 h5
14.10 102mi USA6th No Business 100 31:24:18 h88
08.10 100mi USA10th Indiana Trail 100 Mile 24:46:27 h43
01.09 90h USA8th A Race for the Ages 321.868 km2 🥈
13.08 12h USA3rd Steel City 12 Hour Endurance Run 97.091 km9
30.07 100mi USA16th Burning River 100 Mile Endurance Run 27:44:00 h82
04.06 100mi USA33th Mohican Trail 100 Mile 30:14:13 h64
01.04 48h USA3rd Vernal Equinox 48 Hour Race 164.153 km10
11.03 35h USA5th Conquer the Wall 35 Hour Endurance Challenge 161.658 km3 🥉
20.02 100mi USA9th Jackpot Ultra Running Festival 100 Mile Race 22:12:46 h9
2021
04.12 100mi USA1st Crooked Creek Ultra Trail Race 100mi 29:57:27 h5
24.07 50mi USA15th Burning River 50 Mile Endurance Run 13:33:24 h196
08.04 100mi USA21st Potawatomi 100 Mile Trail Run 36:38:00 h21
27.03 24h USA2nd Vernal Equinox 24 Hour Race 102.998 km20
2020
03.09 88h USA6th A Race for the Ages 323.478 km3 🥉
22.08 102mi USA14th Burning River 100 Mile Endurance Run 26:50:32 h44
11.07 100mi USA4th Canal Corridor 100 Mile Endurance Run 24:24:04 h48
06.03 100mi USA3rd Chattanooga 100 Mile Trail Race 27:33:43 h23
08.02 50km USA17th Louisville's Love'n the Hills (LLTH 50K) 8:13:13 h72
2019
07.12 100mi USA2nd The Fall 100 Mile Ultra Trail Race 30:16:33 h2 🥈
27.07 102mi USA13th Burning River 100 Mile Endurance Run 25:57:14 h59
15.06 100mi USA30th Mohican Trail 100 Mile 27:48:02 h35
09.02 50km USA16th Louisville's Love'n the Hills (LLTH 50K) 7:15:02 h47
2018
08.12 50km USA9th Bigfoot 50K Trail Race 7:28:58 h102
30.11 100mi USA2nd Chattanooga 100 Mile Trail Race 28:29:37 h23
30.08 86h USA4th A Race for the Ages 321.868 km3 🥉
28.07 102mi USA12th Burning River 100 Mile Endurance Run 22:43:56 h23
16.06 100mi USA29th Mohican Trail 100 Mile 28:11:18 h35
05.04 100mi USA18th Potawatomi 100 Mile Trail Run 28:08:00 h5
10.02 50km USA15th Louisville's Love'n the Hills (LLTH 50K) 7:05:49 h35
20.01 52km USA8th Coldwater Rumble 52K Race 5:37:12 h11
2017
01.12 100mi USA1st Chattanooga 100 Mile Trail Race 27:15:02 h18
31.08 83h USA3rd A Race for the Ages 337.962 km1 🏆
29.07 102mi USA11th Burning River 100 Mile Endurance Run 24:24:29 h37
17.06 100mi USA28th Mohican Trail 100 Mile 29:31:29 h48
06.04 200mi USA17th Potawatomi 200 Mile Trail Run 2d 17:23:16 h1 🏆
04.02 50km USA14th Louisville's Love'n the Hills (LLTH 50K) 6:49:32 h40
2016
03.09 24h USA11th Badgerland F/X 24 Hour Run 191.104 km1 🏆
13.08 100mi USA3rd Eastern States 100 Mile 34:14:36 h38
18.06 100mi USA27th Mohican Trail 100 Mile 26:50:45 h37
09.04 100mi USA16th Potawatomi 100 Mile Trail Run 27:54:21 h6
2015
14.11 100mi USA2nd Tunnel Hill 100 Mile Race 21:21:16 h16
05.09 24h USA10th Badgerland F/X 24 Hour Run 180.728 km1 🏆
25.07 100mi USA9th Burning River 100 Mile Endurance Run 25:29:00 h33
20.06 100mi USA26th Mohican Trail 100 Mile 27:42:25 h28
09.05 50mi USA50 Miles For Yo Momma 11:45:25 h4
10.04 200mi USA15th Potawatomi 200 Mile Trail Run 2d 11:18:28 h4
07.02 50km USA12th Louisville's Love'n the Hills (LLTH 50K) 6:20:16 h20
2014
02.08 100mi USA8th Burning River 100 Mile Endurance Run 23:05:16 h21
21.06 100mi USA25th Mohican Trail 100 Mile 26:25:59 h31
04.04 150mi USA14th Potawatomi 150 Mile Trail Run 44:06:04 h6
2013
28.09 100mi USA2nd Not Yo Momma's 100 Mile 26:34:32 h3 🥉
15.09 6h USA1st Hearts and Health Run 62.925 km5
31.08 24h USA8th Badgerland F/X 24 Hour Run 187.200 km2 🥈
27.07 100mi USA7th Burning River 100 Mile Endurance Run 19:53:01 h14
15.06 100mi USA24th Mohican Trail 100 Mile 23:52:47 h18
20.04 100mi USA1st Indiana Trail 100 Mile 24:47:15 h14
2012
11.11 50km USA11th Peachtree City 50K 4:09:10 h3 🥉
07.09 100mi USA4th Run Woodstock - 100 Mile Hallucination Run 23:42:19 h13
28.07 100mi USA6th Burning River 100 Mile Endurance Run 20:31:30 h21
16.06 100mi USA23th Mohican Trail 100 Mile 26:47:52 h33
02.06 100mi USA17th Kettle Moraine 100 Mile Endurance Run 24:18:47 h39
13.04 150mi USA12th Potawatomi 150 Mile Trail Run 42:16:16 h3 🥉
2011
19.11 50km USA2nd Madder Marsh 50k 4:22:10 h5
17.09 24h USANorth Coast 24 Hour Endurance Run - USATF Nat. Championchips 179.071 km17
17.09 24h USA3rd North Coast 24 Hour Endurance Run - Open race 179.071 km19
18.06 100mi USA22th Mohican Trail 100 Mile 25:40:08 h9
14.05 100mi USA17th Massanutten Mountain Trails 100 Mile 28:46:29 h37
09.04 100mi USA11th Potawatomi 100 Mile Trail Run 26:27:23 h4
12.02 50km USA8th Louisville's Love'n the Hills (LLTH 50K) 6:38:30 h12
2010
12.07 135mi USA24th Badwater Ultramarathon 35:54:18 h23
10.04 100mi USA10th Potawatomi 100 Mile Trail Run 23:34:43 h2 🥈
2009
23.08 50km USA15th Germantown 50k 4:49:20 h13
27.06 100mi USA36th Western States 100 Mile Endurance Run 23:50:59 h70
2008
23.08 50km USA14th Germantown 50k 5:35:33 h5
21.06 100mi USA19th Mohican Trail 100 Mile 22:11:40 h12
11.04 150mi USA8th McNaughton 150 Mile Ultra Race 45:53:19 h4
26.01 50km USA14th Mountain Mist 50k 5:37:23 h57
2007
21.07 100mi USA19th Vermont 100 Mile Endurance Race 22:24:42 h36
16.06 100mi USA18th Mohican Trail 100 Mile 21:24:57 h10
05.05 40mi USA29th Strolling Jim 40 Mile 6:12:54 h13
13.04 150mi USA7th McNaughton 150 Mile Ultra Race 44:24:34 h6
17.02 100km USA2nd Orange Curtain 100km Ultra Race 10:30:24 h2 🥈
2006
25.10 50km USA10th Kentucky Ultra Trail Sojourn 50 km 6:07:27 h8
07.10 100mi USA16th Arkansas Traveller 100 23:51:00 h28
17.06 100mi USA17th Mohican Trail 100 Mile 22:48:00 h4
11.02 50km USA3rd Louisville's Love'n the Hills (LLTH 50K) 6:01:30 h14
2005
18.06 100mi USA16th Mohican Trail 100 Mile 22:19:42 h13
07.05 40mi USA27th Strolling Jim 40 Mile 5:50:31 h8
2004
24.10 50km USA2nd Stone Steps 50K Trail Run 5:17:07 h4
11.09 100mi USA14th Olander Park 24 Hour Run - 100mi Split 20:30:42 h17
11.09 24h USA14th Olander Park 24 Hour Run 160.934 km17
19.06 100mi USA15th Mohican Trail 100 Mile 21:49:35 h10
20.03 50mi USA8th Kentucky Ultra Trail Sojourn 50 Miles 9:30:10 h1 🏆
14.02 50km USA1st Louisville's Love'n the Hills (LLTH 50K) 5:54:00 h4
2003
13.09 100mi USA13th Olander Park 24 Hour Run - 100mi Split 17:46:08 h12
13.09 24h USA13th Olander Park 24 Hour Run 160.934 km12
05.07 50km USA10th Afton Trail Run 50K 5:40:00 h18
14.06 100mi USA14th Mohican Trail 100 Mile 19:53:02 h5
03.05 40mi USA25th Strolling Jim 40 Mile 5:52:16 h8
15.03 50mi USA7th Kentucky Ultra Trail Sojourn 50 Miles 7:50:49 h2 🥈
2002
02.11 50mi USA10th OPSF Ultra 50 Mile Race 8:27:21 h1 🏆
16.03 51mi USA6th Kentucky Ultra Trail Sojourn 50 Miles 9:28:30 h5