DUV ULTRA STATS

Kozak, Jeff

United StatesManBorn 19741997 – 2025Runner id 15828
Events
101
1997 – 2025
Best pace
13.492
km/h · 1998
Best finish
1st
of 147 · 1999
Distance raced
8,217
km · splits not double-counted

Pace over time

km/h · higher is faster

4.57.19.712.315.019972025

Pace over time: 101 races from 1997 to 2025, ranging from 5.21 to 14.23 kilometres per hour, where higher is faster. A second, age-graded series is drawn above it; the gap between the two is the age credit.

  • Actual pace
  • Age-graded pace

Results

Every result for this runner in date order. Splits of a race are indented under it and are not counted again in the distance total.
DateEventDistanceResultPace km/hPlacing
1997-09-06
Baldy Peaks 50KUnited States
50km6:19:22 h7.9087/98
1997-09-13
Mule Run 50KUnited States
50km4:23:49 h11.3721/43
1997-10-26
San Juan Trail 50 MileUnited States
50mi9:00:22 h8.93512/40
1998-05-16
Bishop High Sierra Ultramarathons 50 kmUnited States
50km4:44:15 h10.5541/19
1998-06-07
Holcomb Valley 33 MileUnited States
33mi3:56:11 h13.4923/122
1998-09-12
Baldy Peaks 50KUnited States
50km6:30:48 h7.6771/58
1998-10-24
Sierra Nevada Endurance 52 Mile RunUnited States
52.4mi11:24:05 h7.39660/98
1999-03-20
Crown King Scramble 50KUnited States*Flagstaff, AZ
50km5:38:46 h8.85622/194
1999-04-24
Zane Grey Highline Trail 50 MileUnited States
50mi13:26:10 h5.98925/46
1999-05-15
Bishop High Sierra Ultramarathons 50 MilesUnited States
50mi8:13:00 h9.7932/60
1999-06-06
Holcomb Valley 33 MileUnited States
33mi4:31:06 h11.7541/147
1999-07-24
Siskiyou Out Back 50 km Trail RunUnited States*Bishop, CA
48.6km3:59:59 h12.1511/37
1999-10-09
Cuyamaca-Laguna 50k Trail RaceUnited States
50km4:32:13 h11.0215/75
1999-10-23
Sierra Nevada Endurance 52 Mile RunUnited States*CA
52.4mi8:53:13 h9.4898/101
1999-12-05
OTHTC High Desert 50K UltraUnited States*Bishop, CA
50km3:57:49 h12.6157/134
1999-12-18
Huff 50K Trail RunUnited States*Milford, OH
50km4:02:18 h12.3815/165
2001-08-25
Baldy Peaks 50KUnited States
50km6:59:15 h7.1564/48
2001-10-13
Dick Collins Firetrails 50 MileUnited States*Bishop, CA
50mi8:30:17 h9.46111/102
2002-04-06
American River 50 Mile Endurance RunUnited States
50mi7:06:53 h11.31015/421
2002-04-20
Leona Divide 50 Mile RunUnited States
50mi7:56:15 h10.13815/123
2002-04-27
McDonald Forest 50K Trail RunUnited States*Bishop, CA
50km4:32:23 h11.0149/178
2002-05-18
Bishop High Sierra Ultramarathons 50 MilesUnited States
50mi8:32:36 h9.4192/48
2002-06-29
Western States 100 Mile Endurance RunUnited States
100mi27:50:53 h5.779164/255
2002-07-13
Siskiyou Out Back 50 km Trail RunUnited States*Bishop, CA
50km4:25:24 h11.3042/93
2002-10-12
Dick Collins Firetrails 50 MileUnited States*Bishop, CA
50mi8:42:26 h9.24121/124
2003-02-08
Jed Smith Ultra Classic - 50 Km RaceUnited States
50km4:22:16 h11.43929/93
2003-04-05
American River 50 Mile Endurance RunUnited States
50mi7:36:47 h10.57039/433
2003-04-26
Zane Grey Highline Trail 50 MileUnited States
50mi10:49:38 h7.43231/108
2003-05-17
Bishop High Sierra Ultramarathons 50 MilesUnited States*CA
50mi7:46:32 h10.3491/63
2003-09-27
Angeles Crest 100 MileUnited States*Bishop, CA
100mi30:52:48 h5.21243/71
2003-11-29
Santa Barbara Nine Trails 35 Mile Endurance RunUnited States
35mi7:21:25 h7.65611/56
2003-12-07
OTHTC High Desert 50K UltraUnited States*Bishop, CA
50km4:45:59 h10.49032/194
2004-05-15
Bishop High Sierra Ultramarathons 50 MilesUnited States
50mi7:29:51 h10.7331/71
2004-06-26
Western States 100 Mile Endurance RunUnited States*Bishop, CA
100mi21:47:05 h7.38736/278
2004-07-31
White River 50 Mile Trail RunUnited States*Bishop, CA
50mi8:39:24 h9.29528/104
2005-01-22
Capitol Peak MegaFatAssUnited States
34mi5:57:00 h9.1966/36
2005-04-30
Miwok 100k Trail raceUnited States*Bishop, CA
100km10:26:52 h9.57128/223
2005-05-07
Wild Wild West 50kUnited States
50km4:25:06 h11.3161/61
2005-05-21
Bishop High Sierra Ultramarathons 50 MilesUnited States
50mi7:56:33 h10.1312/80
2005-06-11
Holcomb Valley 33 MileUnited States
33mi4:53:55 h10.8423/97
2005-07-16
Tahoe Rim Trail 50M Endurance RunsUnited States*Bishop, CA
50mi8:35:43 h9.3621/89
2006-05-20
Bishop High Sierra Ultramarathons 50 MilesUnited States
50mi8:46:45 h9.1664/77
2006-06-06
Wild Wild West 50kUnited States
50km5:08:35 h9.7224/44
2006-07-15
Tahoe Rim Trail 50M Endurance RunsUnited States*Bishop, CA
50mi8:46:35 h9.1691/85
2006-08-19
Where's Waldo 100K UltramarathonUnited States*Bishop, CA
100km12:25:35 h8.0474/47
2006-12-02
Kepler Challenge Mountain RunNew Zealand
60km6:33:01 h9.16021/351
2007-05-07
Wild Wild West 50kUnited States
50km4:27:34 h11.2121/71
2007-05-19
Bishop High Sierra Ultramarathons 50 MilesUnited States
50mi8:13:42 h9.7792/74
2007-07-21
Tahoe Rim Trail 50M Endurance RunsUnited States*Bishop, CA
50mi8:37:09 h9.3362/106
2008-05-03
Wild Wild West 50kUnited States
50km4:16:00 h11.7191/71
2008-05-17
Bishop High Sierra Ultramarathons 50 MilesUnited States*Bishop, CA
50mi7:27:00 h10.8012/80
2008-07-19
Tahoe Rim Trail 50M Endurance RunsUnited States*Bishop, CA
50mi9:23:17 h8.5714/114
2008-09-06
Wasatch Front 100 MileUnited States*Bishop, CA
100mi30:14:43 h5.32152/162
2008-11-01
Mountain Masochist 50 Mile Trail RunUnited States*CA
50mi9:00:43 h8.92923/186
2008-11-22
JFK 50 MileUnited States*Bishop, CA
50mi7:32:43 h10.66530/927
2008-12-07
OTHTC High Desert 50K UltraUnited States*Bishop, CA
50km3:51:45 h12.9452/217
2009-03-14
Way Too Cool 50K Endurance RunUnited States*Bishop, CA
50km4:15:05 h11.76128/458
2009-04-04
American River 50 Mile Endurance RunUnited States
50mi6:51:43 h11.72718/510
2009-05-16
Bishop High Sierra Ultramarathons 50 MilesUnited States*Bishop, CA
50mi7:06:51 h11.3111/56
2009-12-06
OTHTC High Desert 50K UltraUnited States*Bishop, CA
50km4:14:11 h11.80310/226
2010-05-15
Bishop High Sierra Ultramarathons 50 MilesUnited States*CA
50mi8:08:42 h9.8791/68
2010-06-26
Western States 100 Mile Endurance RunUnited States*Bishop, CA
100mi23:51:43 h6.744117/328
2011-04-30
Leona Divide 50 Mile RunUnited States*Bishop
50mi9:37:34 h8.35976/233
2011-05-07
Wild Wild West 50kUnited States*Bishop, CA
50km5:10:25 h9.6643/44
2011-05-21
Bishop High Sierra Ultramarathons 100 kmUnited States*Bishop
100km11:48:20 h8.4715/40
2011-07-16
Tahoe Rim Trail 50M Endurance RunUnited States*CA
50mi8:51:39 h9.0812/121
2011-09-17
Pine to Palm 100 Mile Endurance RunUnited States*Bishop, CA
100mi23:51:48 h6.7448/45
2012-03-10
Way Too Cool 50K Endurance RunUnited States*Bishop, CA
50km4:33:16 h10.97878/704
2012-10-13
Twin Peaks 50MUnited States*Bishop, CA
50mi10:05:42 h7.9713/52
2013-02-02
Ray Miller 50 km Trail RaceUnited States
50km5:52:01 h8.52231/153
2013-03-30
Coyote Cohorts Backbone Trail UltraUnited States*Bishop, CA
68mi15:43:00 h6.96338/124
2013-05-18
Bishop High Sierra Ultramarathons 50 MilesUnited States
50mi8:48:44 h9.1315/76
2014-02-01
Sean O'Brien 50 Mile Trail RaceUnited States
50mi7:55:56 h10.14413/151
2014-03-08
Way Too Cool 50K Endurance RunUnited States*Bishop, CA
50km4:03:40 h12.31221/1026
2014-04-12
Lake Sonoma 50 Mile RaceUnited States*Bishop, CA
50mi7:56:55 h10.12325/301
2014-05-17
Bishop High Sierra Ultramarathons 50 MilesUnited States*Bishop, CA
50mi7:22:14 h10.9171/46
2014-06-07
San Diego 100 Mile Endurance RunUnited States*Bishop, CA
100mi19:24:22 h8.2931/142
2015-03-07
Way Too Cool 50K Endurance RunUnited States*Bishop, CA
50km4:14:16 h11.79963/978
2015-05-09
Quicksilver 100 km Endurance RunUnited States*Bishop, CA
100km10:31:00 h9.50912/181
2015-06-27
Western States 100 Mile Endurance RunUnited States*Bishop, CA
100mi20:18:08 h7.92731/254
2016-07-09
Speedgoat 50kUnited States*Bishop, CA
50km7:39:45 h6.52540/212
2016-11-05
Rio Del Lago 100 Mile Endurance RunUnited States*Bishop, CA
100mi22:32:38 h7.13934/208
2017-09-07
Run Rabbit Run 100 Mile UltraMarathon - Hares RunUnited States*Bishop, CA
100mi28:59:31 h5.55131/38
2018-02-03
Sean O'Brien 50 km Trail RaceUnited States
50km5:36:52 h8.90612/182
2018-05-05
Wild Wild West 50MUnited States*Bishop, CA
50mi9:05:06 h8.8571/31
2018-06-08
San Diego 100 Mile Endurance RunUnited States*Bishop, CA
100mi22:31:38 h7.1447/151
2018-12-02
OTHTC High Desert 50K UltraUnited States*Bishop, CA
50km3:44:31 h13.3622/155
2019-05-04
Wild Wild West 50kUnited States*Bishop, CA
50km5:25:51 h9.2071/59
2019-06-01
Bishop High Sierra Ultramarathons 50 MilesUnited States*Bishop, CA
50mi9:04:45 h8.8631/43
2019-07-13
Siskiyou Out Back 100 Km Trail RunUnited States*Bishop, CA
100km13:39:03 h7.32625/76
2019-09-14
Mogollon Monster 100 MileUnited States*Bishop, CA
106mi31:20:05 h5.44441/77
2022-04-09
The Zion 100 km RunUnited States*Bishop
100km14:02:54 h7.11842/241
2022-09-24
Mammoth Trail FestUnited States*Bishop, CA
50km5:48:32 h8.60717/234
2023-05-20
Silver State 50 MileUnited States*Bishop, CA
50mi9:23:06 h8.57410/58
2023-06-24
Western States 100 Mile Endurance RunUnited States
100mi23:01:18 h6.99173/328
2024-05-18
Bishop High Sierra Ultramarathons 50 MilesUnited States*Bishop, CA
50mi8:18:24 h9.6871/30
2024-09-21
Mammoth Trail FestUnited States*Bishop, CA
50km6:06:13 h8.19257/540
2024-10-05
Wild Wild West 50kUnited States*Bishop, CA
50km6:33:22 h7.6266/54
2024-10-11
Kodiak Ultra Marathons by UTMB - 100KUnited States*Bishop, CA
100km13:45:37 h7.26783/284
2025-04-12
The Zion 100 km RunUnited States*Bishop, CA
100km12:04:21 h8.2837/196
2025-05-17
Bishop High Sierra Ultramarathons 50 MilesUnited States*Bishop, CA
50mi8:58:36 h8.9642/43