Jason Schlarb
Born : 1978 Cat. M45 Ultrarunner since 2010 USA
54
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
69
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
14
Countries visited ?ARGArgentinaCHNChinaCRCCosta RicaESPSpainFRAFranceITAItalyMARMoroccoMEXMexicoNZLNew ZealandOMAOmanPORPortugalSUISwitzerlandTHAThailandUSAUnited States
1,5%
Rank quotient ?This runner's calculation uses 78 eligible race(s): Σ(rank − 1) = 403; Σ finishers = 26 425. 403 / 26 425 × 100 = 1.53%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed92
Km — ultra races7 558 km
> 100 km28
> 160 km16
> 200 km3
Longest race257,0 km

Km per year (ultra races)

520
5 races
2022
208
3 races
2023
570
5 races
2024
298
3 races
2025
293
3 races
2026

Race types (share of distance)

Trail90,2%
Stage9,8%

Wins & podiums (ultra)

🏆 Win26
🏆 Win M27
🏅 Top 349
🏅 Top 3 M49
Longest winning streak4
Current streak0

HISTORY

78 race(s)
DateRacePerf.Rk
2026
10.07 100mi USA33rd Hardrock Hundred Endurance Run 34:44:16 h19
09.05 50mi USA21st Jemez Mountain 50mi Trail Run 9:40:14 h3 🥉
17.04 52km MEX4th Puerto Vallarta México by UTMB - Nakawé 5:53:33 h6
2025
02.10 155km MEXChihuahua by UTMB - 100M 27:55:27 h10
25.07 60km USA11th Never Summer 60k 6:28:15 h1 🏆
21.03 83.2km ARG5° Valhöll Ultra Trail by UTMB - Advance 85K 9:36:53 h3 🥉
2024
08.11 95km MEX3rd Puerto Vallarta México by UTMB - 100K 10:56:50 h5
26.08 148km ITA14ème Sur les Traces des Ducs de Savoie 21:21:06 h9
12.07 100mi USA31st Hardrock Hundred Endurance Run 24:48:13 h3 🥉
27.04 116km POR15. MIUT - Madeira Island Ultra Trail 115 km 16:24:24 h23
02.03 50km USA11th Monument Valley 50 km Race 4:16:44 h1 🏆
2023
23.11 108.1km OMA3rd Himam Trail Run Race - Al Hajar Range Challenge 17:23:50 h2 🥈
09.09 50km USA10th Devil on the Divide Ultra 4:56:59 h1 🏆
04.03 50km USA10th Monument Valley 50 km Race 4:25:45 h1 🏆
2022
10.12 104km THA3rd Thailand by UTMB - 104km 14:48:23 h12
26.08 170km FRA19ème Ultra Trail Tour du Mont Blanc 25:30:59 h54
16.07 101km SUI10. Eiger Ultra Trail 101 km 12:48:20 h8
18.06 28mi USA15th Logan Peak 28 Mile Trail Race 4:01:40 h2 🥈
14.05 100km USA39th Quicksilver 100 km Endurance Run 10:51:04 h4
2021
13.11 60km USA1st Kessel Run 60 km Ultra Race 5:43:25 h2 🥈
16.10 50km USA10th Cedro Peak 50 km Ultramarathon 4:44:14 h1 🏆
2020
21.11 50km USA6th Dead Horse 50 km Race 3:35:26 h1 🏆
12.09 100mi USA9th Idaho Mountain Trail Ultra Festival (IMTUF 100) 20:10:11 h1 🏆
01.08 100km USA6th Tushars 100km Mountain Runs 12:02:56 h2 🥈
27.06 50km USA1st Bears Ears 50 km Ultra Race 5:18:08 h3 🥉
25.01 50km MEX4a Ultrahuachi 50km 6:50:17 h5
2019
04.11 250km/5stages MEX1st Ultra X Mexico 24:39:51 h2 🥈
30.08 171km FRA17ème Ultra Trail Tour du Mont Blanc 24:27:59 h19
27.07 100km USA5th Tushars 100km Mountain Runs 12:47:04 h1 🏆
25.05 115km FRA8ème La Maxi Race du Lac d'Annecy - Ultra Race 14:05:13 h2 🥈
06.04 133km ARG1. Ushuaia by UTMB - FMU 130 15:26:35 h1 🏆
26.01 50km MEX3a Ultrahuachi 50km 6:37:09 h1 🏆
2018
29.11 137km OMA1st Oman by UTMB 20:45:37 h1 🏆
14.09 100mi USA12th Run Rabbit Run 100 Mile UltraMarathon - Hares Run 18:48:08 h1 🏆
14.07 101km SUI6. Eiger Ultra Trail 101 km - Originalstrecke 11:57:59 h2 🥈
30.06 60km MEX2. Trail del Corral 60 kms 6:37:09 h1 🏆
16.06 52km USA3rd The Broken Arrow Skyrace 5:14:29 h4
12.05 73km ESP10. Transvulcania 2018 8:55:00 h32
14.04 50km USA15th Desert Rats Trail Running Festival 50 km 3:55:39 h1 🏆
09.03 34mi CHN2nd Mt. Gaoligong - Tea & Horse Trail 5:22:12 h2 🥈
2017
04.11 100km CHN3rd Ultra Trail Mt Siguniang 100 km 14:02:56 h1 🏆
01.09 167.7km FRA15ème Ultra Trail Tour du Mont Blanc 26:06:12 h48
05.08 50km USA11th El Vaquero Loco 50K Mountain Race 5:07:23 h1 🏆
13.05 73km ESP9. Transvulcania 2017 7:40:51 h9
07.04 55km USA6th The Zion 55 km Run 4:24:53 h1 🏆
11.02 236km/6stages CRC13th The Coastal Challenge - Expedition Run 24:34:57 h3 🥉
2016
15.07 100mi USA23rd Hardrock Hundred Endurance Run 22:58:00 h2 🥈
04.06 50km USA8th Golden Gate Dirty 30 4:55:36 h3 🥉
10.04 257km/6stages MAR31. Marathon des Sables 24:58:36 h12
06.02 102km NZL8th Tarawera 100 km Ultramarathon 9:16:48 h6
2015
18.09 100mi USA9th Run Rabbit Run 100 Mile UltraMarathon - Hares Runs 18:05:18 h1 🏆
08.08 38mi USA3rd Telluride Mountain Run 7:16:36 h2 🥈
18.07 101km SUI3. Eiger Ultra Trail 101 km 11:50:59 h2 🥈
30.05 50km USA7th Golden Gate Dirty 30 4:50:17 h4
07.03 51km NZLMotatapu Ultra 7:13:28 h1 🏆
2014
23.10 172km FRA22ème Grand Raid Réunion - La Diagonale des Fous 29:28:30 h10
29.08 168km FRA12ème Ultra Trail Tour du Mont Blanc 21:39:44 h4
26.07 45km SUI3ème Trail du Vélan 6:09:15 h1 🏆
27.06 80km FRA2ème 80km du Mont-Blanc 13:06:15 h37
10.05 73km ESP6. Transvulcania 2014 8:00:28 h16
2013
13.09 100mi USA7th Run Rabbit Run 100 Mile UltraMarathon - Hares Run 17:15:20 h1 🏆
27.07 50km USA6th Speedgoat 50k 5:19:34 h3 🥉
22.06 50mi USA19th San Juan Solstice 50 Mile Run 8:07:13 h2 🥈
01.06 50km USA4th Pocatello 50 km Trail Run 5:10:07 h1 🏆
27.04 50mi USA21st Leona Divide 50 Mile Run 6:44:54 h3 🥉
16.03 100km NZL5th Tarawera 100 km Ultramarathon 11:19:50 h12
2012
01.12 60km NZL25th Kepler Challenge Mountain Run 5:05:06 h4
05.10 100mi USA5th Grindstone 100 Mile 18:35:05 h3 🥉
28.07 50km USA5th Speedgoat 50k 5:44:26 h7
23.06 50mi USA18th San Juan Solstice 50 Mile Run 8:13:00 h1 🏆
19.05 50km USA7th Jemez Mountain 50km Trail Run 4:28:30 h1 🏆
28.04 50mi USA20th Leona Divide 50 Mile Run 6:22:37 h5
17.03 50km USA20th Chuckanut 50K 3:49:59 h3 🥉
2011
03.12 50mi USA5th Endurance Challenge - California Trail 50 Mile 6:54:00 h10
22.05 50mi USA1st Dirty German Endurance Fest 50 Mile 6:37:38 h1 🏆
23.04 50km USA1st Cheyenne Mountain Trail Race 4:11:33 h2 🥈
05.03 50mi USA2nd Nueces 50 Mile Trail Run 6:28:26 h1 🏆
2010
04.12 50mi USA4th Endurance Challenge - California Trail 50 Mile 7:06:50 h5