Joseph Kulak
ID 47181
Born : 1967 Cat. M55 Ultrarunner since 1997 USA
60
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
80
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
3
Countries visited ?GBRUnited KingdomSUISwitzerlandUSAUnited States
5,5%
Rank quotient ?This runner's calculation uses 63 eligible race(s): Σ(rank − 1) = 641; Σ finishers = 11 592. 641 / 11 592 × 100 = 5.53%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed63
Km — ultra races8 174 km
> 100 km39
> 160 km39
> 24h1
Longest race176,9 km
1st Lone Ranger 24 hr Ultra-Marathon — 18/7/2009

Km per year (ultra races)

2022
2023
2024
2025
2026

Race types (share of distance)

Road3,1%
Trail96,9%

Wins & podiums (ultra)

🏆 Win5
🏆 Win M5
🏅 Top 317
🏅 Top 3 M18
Longest winning streak1
Current streak0

Records

50 km4h09'29100 km9h11'4350 mi7h04'53100 mi14h45'1724 h176,91 km

HISTORY

63 race(s)
DateRacePerf.Rk
2018
21.07 100mi USA30th Vermont 100 Mile Endurance Race 19:16:17 h23
12.05 50mi USA8th Dirty German Endurance Fest 50 Mile 8:08:42 h13
07.04 50mi USA26th Bull Run Run 50 Miler 8:25:34 h14
2016
09.04 50mi USA24th Bull Run Run 50 Miler 8:25:06 h18
2013
06.10 50km USA8th Blues Cruise 50K Ultra Trail 4:43:16 h14
2011
25.06 100mi USA38th Western States 100 Mile Endurance Run 19:44:52 h36
22.05 50mi USA1st Dirty German Endurance Fest 50 Mile 7:25:58 h3 🥉
2010
16.10 100mi USA2nd Oil Creek 100 Miles Trail Run 19:19:40 h4
15.05 100mi USA16th Massanutten Mountain Trails 100 Mile 27:24:16 h31
10.04 50mi USA18th Bull Run Run 50 Miler 7:04:53 h5
2009
10.10 100mi USA1st Oil Creek 100 Miles Trail Run 20:28:40 h3 🥉
18.07 24h USA1st Lone Ranger 24 hr Ultra-Marathon 176.911 km5
16.05 100mi USA15th Massanutten Mountain Trails 100 Mile 22:57:02 h8
04.04 100mi USA15th Umstead Endurance Run 100 Miles 15:26:07 h2 🥈
2008
06.12 50mi USA2nd Endurance Challenge - California Trail 50 Mile 8:51:22 h25
05.10 50km USA3rd Blues Cruise 50K Ultra Trail 4:34:40 h12
16.08 100mi USA26th Leadville Trail 100 Mile 24:21:32 h26
19.07 100mi USA20th Vermont 100 Mile Endurance Race 17:35:19 h6
12.04 50mi USA16th Bull Run Run 50 Miler 8:50:15 h24
2007
01.12 50mi USA1st Endurance Challenge - California Trail 50 Mile 10:13:30 h25
22.09 50mi USA8th Tussey Mountainback 50 Miler 8:07:59 h14
18.08 100mi USA25th Leadville Trail 100 Mile 23:41:49 h28
02.06 100mi USA12th Kettle Moraine 100 Mile Endurance Run 16:59:58 h2 🥈
2006
19.08 100mi USA24th Leadville Trail 100 Mile 22:47:26 h20
24.06 100mi USA33th Western States 100 Mile Endurance Run 21:22:50 h14
13.05 100mi USA12th Massanutten Mountain Trails 100 Mile 20:38:01 h5
08.04 50mi USA14th Bull Run Run 50 Miler 7:51:32 h8
2005
15.10 50mi USA6th Tussey Mountainback 50 Miler 7:10:00 h6
20.08 100mi USA23rd Leadville Trail 100 Mile 19:28:37 h4
25.06 100mi USA32th Western States 100 Mile Endurance Run 17:16:12 h3 🥉
07.05 100mi USA11th Massanutten Mountain Trails 100 Mile 20:52:40 h5
16.04 50km USA1st Greenland Trail Race 4:09:29 h7
2004
30.10 100mi USA2nd Javelina Jundred 100 Mile 15:47:53 h1 🏆
02.10 100mi USA14th Arkansas Traveller 100 17:32:31 h2 🥈
21.08 100mi USA22nd Leadville Trail 100 Mile 19:47:47 h4
26.06 100mi USA31th Western States 100 Mile Endurance Run 17:43:12 h5
05.06 100mi USA25th Old Dominion 100 Mile Endurance Run 16:38:44 h1 🏆
01.05 50mi USA5th Collegiate Peaks 50 Miles 8:38:18 h4
2003
27.09 100mi USA17th Angeles Crest 100 Mile 22:16:21 h5
06.09 100mi USA24th Wasatch Front 100 Mile 21:53:10 h2 🥈
16.08 100mi USA21st Leadville Trail 100 Mile 20:03:25 h5
19.07 100mi USA15th Vermont 100 Mile Endurance Race 14:55:26 h1 🏆
28.06 100mi USA30th Western States 100 Mile Endurance Run 18:14:59 h6
07.06 100mi USA24th Old Dominion 100 Mile Endurance Run 17:00:28 h1 🏆
03.05 100km USA8th Miwok 100k Trail race 9:26:52 h3 🥉
2002
05.10 100mi USA12th Arkansas Traveller 100 15:52:35 h1 🏆
17.08 100mi USA20th Leadville Trail 100 Mile 18:43:13 h3 🥉
20.07 100mi USA14th Vermont 100 Mile Endurance Race 14:45:17 h2 🥈
29.06 100mi USA29th Western States 100 Mile Endurance Run 19:36:05 h14
04.05 50mi USA4th Collegiate Peaks 50 Miles 7:42:46 h4
2001
18.08 100mi USA19th Leadville Trail 100 Mile 19:12:41 h3 🥉
16.06 50mi USA7th San Juan Solstice 50 Mile Run 10:32:04 h4
2000
19.08 100mi USA18th Leadville Trail 100 Mile 20:31:37 h4
29.07 78km SUI15. Swiss Alpine Marathon 7:15:59 h49
06.05 100km USA5th Miwok 100k Trail race 9:11:43 h4
1999
03.10 88.5km GBR49th London to Brighton Road Race 7:30:54 h14
21.08 100mi USA17th Leadville Trail 100 Mile 20:05:02 h4
31.07 78km SUI14. Swiss Alpine Marathon 7:42:17 h79
1998
22.08 100mi USA16th Leadville Trail 100 Mile 20:23:50 h6
27.06 100mi USA25th Western States 100 Mile Endurance Run 21:13:14 h16
1997
20.10 50mi USA15th Dick Collins Firetrails 50 Mile 7:07:31 h2 🥈
16.08 100mi USA15th Leadville Trail 100 Mile 21:35:55 h6
05.04 50mi USA18th American River 50 Mile Endurance Run 7:12:30 h36