Duane Grigg
Born : 1951 Cat. M75 Ultrarunner since 1989 USA
56
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
60
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
65,8%
Rank quotient ?This runner's calculation uses 174 eligible race(s): Σ(rank − 1) = 7 898; Σ finishers = 12 011. 7 898 / 12 011 × 100 = 65.76%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed176
Km — ultra races10 584 km
> 100 km6
> 160 km3
> 24h2
Longest race160,9 km

Km per year (ultra races)

596
11 races
2022
337
6 races
2023
389
7 races
2024
330
6 races
2025
150
3 races
2026

Race types (share of distance)

Road16,8%
Trail82,0%
Stage1,1%

Wins & podiums (ultra)

🏆 Win0
🏆 Win M2
🏅 Top 33
🏅 Top 3 M3
Longest winning streak0
Current streak0

HISTORY

174 race(s)
DateRacePerf.Rk
2026
27.06 50km USA2nd No Shame Shindig 7:25:00 h5
06.06 10h USA19th Run Under The Stars - Paducah 49.889 km51
25.04 50km USA18th Frisco Railroad 50 km Run 7:51:36 h52
2025
08.11 50mi USA12th Tunnel Hill 50 Mile Race 12:20:57 h201
18.10 50km USA15th Pumpkin Holler 50 km Race 7:24:46 h57
07.06 10h USA18th Run Under The Stars - Paducah 49.889 km32
26.04 50km USA17th Frisco Railroad 50 km Run 7:30:24 h44
12.04 50km USA4th Mile 0 Flint Hills Trail Race 7:27:33 h24
08.03 9h USA3rd Miola Madness - Spring Into Daylight Savings 49.937 km2 🥈
2024
26.10 50mi USA12th Kansas Rails-to-Trails Fall Extravaganza 50 Mile 12:38:56 h25
21.09 50km USA3rd Ultrapalooza 50km 7:36:41 h21
18.08 49km USA11th Anchorage RunFest - 49K Ultra 7:03:22 h60
27.04 50km USA16th Frisco Railroad 50 km Run 7:45:12 h47
13.04 50km USA3rd Mile 0 Flint Hills Trail Race 7:24:40 h37
09.03 60km USA20th Land Between The Lakes 60 km Trail Run 9:59:21 h72
06.01 50km USA7th The Great Scorpion Trail Run 8:43:55 h31
2023
11.11 50mi USA10th Tunnel Hill 50 Mile Race 12:31:11 h245
23.09 50km USA2nd Ultrapalooza 50km 7:50:24 h23
17.06 33.5mi USA11th Trail Rail Run 50 km 7:49:21 h15
25.03 50km USA11th Prairie Spirit 50 km Trail Ultra Race 9:28:16 h61
12.02 33mi USA3rd Gone Loco 33 Mile Race 8:32:50 h44
07.01 50km USA6th The Great Scorpion Trail Run 8:50:37 h39
2022
17.12 50km USA3rd Last Chance 50 km Ultra Race 8:50:23 h35
12.11 50mi USA9th Tunnel Hill 50 Mile Race 13:00:25 h257
01.10 50km USA8th The Hennepin Hundred - 50 km Run 8:49:49 h62
21.08 49km USA9th Anchorage RunFest - 49K Ultra 6:58:23 h45
02.07 12h USA16th Run Under The Stars 12 Hour Endurance Run 49.889 km18
11.06 10h USA16th Run Under The Stars - Paducah 49.889 km55
21.05 12h USA16th Run Under The Stars 12 Hour Endurance Run 65.316 km12
30.04 50km USA14th Frisco Railroad 50 km Run 6:53:07 h23
16.04 50km USA1st Mile 0 Flint Hills Trail Race 6:44:29 h25
19.02 50km USA6th Red Dirt Ultra 50 km 7:10:36 h37
15.01 32mi USA11th Bear Bait 32 Mile Ultramarathon 8:16:45 h19
2021
13.11 50mi USA8th Tunnel Hill 50 Mile Race 11:46:18 h205
02.10 50km USA7th The Hennepin Hundred - 50 km Run 12:10:33 h99
14.08 30mi USA16th Lean Horse Ultra-Marathon 30 Mile 7:50:23 h30
17.07 50km USACrimson Lake 50 km Trail Venture 7:44:03 h9
12.06 10h USA15th Run Under The Stars - Paducah 49.889 km37
22.05 50km USA2nd Witch Dance 50 km Trail Run 8:38:48 h30
24.04 50km USA13th Frisco Railroad 50 km Run 6:42:30 h25
06.03 40mi USA2nd AlfaDog 40 Mile Race 10:10:30 h24
16.01 32mi USA10th Bear Bait 32 Mile Ultramarathon 9:27:21 h33
2020
26.12 50km USA1st Last Chance 50 km Ultra Race 9:46:32 h53
10.10 50mi USA21th Heartland 50 Mile Race 14:42:30 h8
2019
05.10 50mi USA5th The Hennepin Hundred - 50 Mile Run 13:11:12 h111
31.08 12h USA4th A Day At The Beach 12 hour run 53.108 km3 🥉
10.08 50km USA3rd Trail of the Dragon 50 km 10:51:27 h20
27.04 50km USA11th Frisco Railroad 50 km Run 7:18:28 h44
2018
10.11 50mi USA5th Tunnel Hill 50 Mile Race 12:37:41 h282
06.10 50km USA4th The Hennepin Hundred - 50 km Run 7:39:31 h75
01.09 12h USA3rd A Day At The Beach 12 hour run 51.499 km10
11.08 50km USA2nd Trail of the Dragon 50 km 9:30:30 h16
28.04 50km USA10th Frisco Railroad 50 km Run 7:35:51 h63
2017
03.06 50km USA12th War Eagle 50K 8:15:37 h95
25.03 50km USA4th Monument Valley 50 km Race 8:53:52 h172
14.01 50km USA6th Bear Bait 50K Ultramarathon 7:50:16 h20
2016
13.08 50mi USA21st Resurrection Pass 50 Mile Ultra Trail Race 16:39:55 h31
30.04 50km USA8th Frisco Railroad 50 km Run 7:09:12 h62
20.02 50mi USA3rd Antelope Canyon 50 Mile Race 14:37:20 h201
2015
13.09 50km USA2nd Stanky Creek 50 km Trail Race 7:44:44 h41
08.08 50km USAThe Badlands 50 km 9:11:46 h8
20.06 50km USA2nd River of No Return Endurance Run 50K 8:01:09 h107
30.05 40mi USA2nd Flint Hills Trail 40 Mile 8:27:15 h32
25.04 50km USA7th Frisco Railroad 50 km Run 6:30:44 h34
2014
19.10 50km USA7th Dogwood Canyon Trail Run 8:28:46 h60
14.04 55km USA2nd Possum Kingdom Trail Run 55 km 8:54:43 h37
2013
20.10 50km USA6th Dogwood Canyon Trail Run 7:35:20 h49
28.09 50km USA4th Sundance Trail Run 8:17:22 h12
24.08 50km USA8th Lean Horse Ultra-Marathon 50 km 6:39:51 h17
2012
25.08 50km USA7th Lean Horse Ultra-Marathon 50 km 6:45:07 h13
2011
05.11 50km USA1st Bootlegger 50K 7:40:36 h39
02.10 50km USA1st Kickin' Route 66 6:28:19 h6
17.09 32mi USA17th Bohemian Alps 50 km Ultramarathon 7:34:45 h33
16.07 50km USA2nd North Fork 50 km Trail Race 9:20:44 h69
30.04 50km USA3rd Frisco Railroad 50 km Run 6:47:35 h19
2010
25.09 50km USA1st Sundance Trail Run 8:22:35 h19
18.09 50km USA2nd Fairbanks Equinox Ultra Marathon 6:56:01 h50
28.08 50km USA5th Lean Horse Ultra-Marathon 50 km 8:05:25 h22
22.05 8h USA1st CRUD 8 Hour Trail Run 48.119 km19
17.04 50km USA2nd Frisco Railroad 50 km Run 6:32:39 h18
28.02 50km USA1st Post Oak Lodge 50K Trail Challenge 7:51:48 h30
2009
19.09 60km USA6th Hocking Hills Indian Run 8:30:01 h22
12.09 50km USA7th Dances with Dirt - Hell 50K Ultra 7:52:01 h89
11.07 50km USA6th Dances with Dirt - Devil's Lake 50K Ultra 7:35:00 h57
06.06 50km USA2nd Auburn Trail Run 50K 8:13:24 h31
09.05 50km USA6th Dances with Dirt - Gnaw Bone 50 km Ultra 7:30:36 h43
18.04 50km USA1st Frisco Railroad 50 km Run 5:35:56 h16
2008
06.12 50km USA19th Sunmart Texas Trails 50 km 5:38:53 h113
26.10 50km USA1st Dogwood Canyon Trail Run 7:20:35 h45
26.07 50km USA2nd El Scorcho 50k 6:46:09 h81
12.04 50km USA10th Lake McMurtry 50 km Trail Race 5:56:04 h10
14.03 50km USA4th Three Days of Syllamo 50 km Run 8:17:33 h55
08.03 6h USA1st Taturs Six Hour Snake Run 47.475 km10
2007
20.10 50km USA1st Spirit of the Osage 50k 5:48:40 h23
07.07 50km USA14th Afton Trail Run 50K 7:59:07 h96
15.06 70.5mi USA28th Laurel Highlands 70 Mile Ultra 21:38:08 h60
19.05 50mi USA8th Berryman 50 Mile 10:36:12 h30
21.04 50km USA17th Ouachita Trail 50 km 7:39:56 h32
14.04 50km USA9th Lake McMurtry 50 km Trail Race 6:27:48 h16
24.03 50mi USA8th Grasslands 50 Mile Trail Run 12:59:44 h44
17.03 50km USA5th Prickly Pear 50 km Trail Run 5:44:24 h37
17.02 50km USA2nd Black Warrior 50K 6:52:14 h46
20.01 50km USA2nd Swamp Stomper 50K 8:23:16 h32
2006
30.12 50km USA10th Huff 50K Trail Run 6:43:00 h158
30.09 50km USA12th Flatrock 50K 7:33:13 h17
17.09 50km USA1st Turkey & Taturs 50 km Trail Race 6:59:04 h20
20.05 50mi USA7th Berryman 50 Mile 13:05:07 h39
29.04 50mi USA17th Zane Grey Highline Trail 50 Mile 14:57:34 h83
16.04 50km USA8th Lake McMurtry 50 km Trail Race 6:24:57 h11
15.04 50km USA8th Double Chubb 50k 5:38:58 h24
2005
29.10 50km USA1st Goblin Valley Ultra 50k 6:21:19 h59
01.10 100mi USA15th Arkansas Traveller 100 29:31:01 h68
03.09 12h USA1st Flatlanders 12 Hour Run 51.820 km27
27.08 100mi USA1st Lean Horse Ultra-Marathon 100 Mile 27:50:59 h45
30.07 50mi USA10th Resurrection Pass 50 Mile Ultra Trail Race 13:35:00 h19
09.04 50km USA7th Lake McMurtry 50 km Trail Race 6:18:25 h14
18.03 120km/3stages USA1st Three Days of Syllamo Stage Race 19:28:00 h21
2004
23.10 50km USA5th Whiskeytown 50km Trail Run 7:34:57 h27
15.05 50mi USA5th Berryman 50 Mile 12:17:56 h35
01.05 40mi USA26th Strolling Jim 40 Mile 9:00:00 h54
17.04 50mi USA14th Ouachita Trail 50 Mile 12:54:45 h29
20.03 50km USA8th Kentucky Ultra Trail Sojourn 50 km 7:15:47 h40
21.02 50km USA12th Sylamore Trail 50k Run 6:10:31 h59
14.02 50km USA2nd El Paso Franklin Mountains 50K 8:10:03 h13
24.01 50km USA10th Mountain Mist 50k 6:33:43 h156
2003
25.10 50km USA11th Rocky 50 km Trail Run 7:02:37 h82
13.09 50mi USA9th Bohemian Alps 50 Miles 11:20:08 h14
17.05 50mi USA4th Berryman 50 Mile 11:43:45 h19
03.05 40mi USA25th Strolling Jim 40 Mile 8:47:20 h48
15.02 50km USA11th Sylamore Trail 50k Run 7:16:10 h68
11.01 100km USA3rd Bandera 100 km Ultratrail 18:41:48 h19
2002
10.11 50mi USA9th Quivering Quads 50M Trail Race 11:48:46 h17
19.10 50mi USA18th Palo Duro 50 Mile Trail Run 11:40:09 h25
12.10 50mi USA3rd Heartland 50 Mile Race 12:02:14 h9
21.09 50mi USA8th Bohemian Alps 50 Miles 11:06:15 h12
10.08 8h USA12th Howl at the Moon 8h Run 61.991 km42
01.06 40mi USAPennar 40-Miler 9:31:20 h20
04.05 24h USA21st Cornbelt Running Club 24 Hour Run 65.033 km41
20.04 50km USA12th Ouachita Trail 50 km 7:32:32 h19
30.03 33mi USA3rd Oak Mountain 50km Race 6:59:04 h36
16.02 50km USA10th Sylamore Trail 50k Run 6:24:42 h41
26.01 50km USA8th Mountain Mist 50k 7:10:39 h126
2001
21.04 50mi USA11th Ouachita Trail 50 Mile 12:14:44 h14
07.04 50km USA3rd Double Chubb 50k 6:15:13 h31
17.02 50km USA9th Sylamore Trail 50k Run 5:50:23 h23
2000
25.11 50km USA2nd Big Dog Ultra Trail Run 5:25:09 h6
30.09 50km USA6th Flatrock 50K 6:05:59 h3 🥉
23.09 50mi USA1st North Country Trail Run 50 Mile 9:20:18 h13
30.07 50km USA4th Mount Rushmore Trail 50 km Run 8:43:00 h10
27.05 50mi USA1st Berryman 50 Mile 10:41:04 h5
06.05 24h USA19th Cornbelt Running Club 24 Hour Run 100.809 km30
01.04 50mi USA10th Ouachita Trail 50 Mile 11:10:59 h13
19.02 50km USA8th Sylamore Trail 50k Run 5:52:20 h22
1999
25.09 50km USA5th Flatrock 50K 6:24:54 h11
14.08 8h USA9th Howl at the Moon 8h Run 69.974 km30
17.07 100km USAElkhorn Mountain Endurance Run 100 km 14:58:32 h51
05.06 40mi USAPennar 40-Miler 7:28:12 h20
08.05 50mi USA18th Ice Age Trail 50 Mile Run 9:28:08 h136
10.04 100mi USA5th Umstead Endurance Run 100 Miles 27:25:34 h40
20.02 50km USA7th Sylamore Trail 50k Run 5:31:22 h15
06.02 50km USA6th White Rock Classic 50K 5:57:00 h7
23.01 50km USA5th Mountain Mist 50k 6:51:41 h78
1998
07.11 50mi USA5th Quivering Quads 50M Trail Race 10:31:11 h8
09.05 50mi USA15th Quicksilver 50 Mile Endurance Run 10:40:06 h38
21.02 50km USA6th Sylamore Trail 50k Run 6:58:04 h40
1997
27.09 50km USA3rd Flatrock 50K 6:43:30 h10
07.09 50km USA3rd Dances with Dirt - Hell 50K Ultra 6:37:52 h30
03.05 40mi USA19th Strolling Jim 40 Mile 7:38:09 h51
22.03 50mi USA16th Cross Timbers Trail Run 11:23:55 h35
01.03 50mi USA17th Carl Touchstone Memorial Mississippi Trail 50 Mile 11:51:29 h48
15.02 50km USA5th Sylamore Trail 50k Run 6:45:33 h16
1996
12.12 50mi USA7th Sunmart Texas Trails 50 Mile 10:45:59 h218
1991
27.07 50mi USA10th Minnesota Voyageur Trail 50 Mile Ultra 11:44:26 h91
1989
28.05 50mi USA12th Rocky Mountain 50 Mile Run 10:42:56 h17