Timothy Olson
ID 145114
Born : 1983 Cat. M40 Ultrarunner since 2009 USA
50
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
65
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
10
Countries visited ?ARGArgentinaCHIChileCRCCosta RicaESPSpainFRAFranceHKGHong KongNZLNew ZealandPORPortugalSUISwitzerlandUSAUnited States
2,5%
Rank quotient ?This runner's calculation uses 70 eligible race(s): Σ(rank − 1) = 574; Σ finishers = 22 923. 574 / 22 923 × 100 = 2.50%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed75
Km — ultra races6 694 km
> 100 km20
> 160 km15
> 200 km2
Longest race321,9 km
1st The Mammoth 200 — 26/9/2025

Km per year (ultra races)

2022
80
1 race
2023
80
1 race
2024
372
2 races
2025
2026

Race types (share of distance)

Trail96,4%
Stage3,6%

Wins & podiums (ultra)

🏆 Win14
🏆 Win M14
🏅 Top 326
🏅 Top 3 M26
Longest winning streak3
Current streak0

Records

50 km3h36'36100 km8h28'4050 mi6h07'34100 mi14h46'44

HISTORY

70 race(s)
DateRacePerf.Rk
2025
26.09 200mi USA1st The Mammoth 200 3d 00:39:11 h23
16.08 50km USA34th Bulldog 50k Ultra Run 4:37:15 h11
2024
13.07 50mi USA26th Siskiyou Out Back 50 Miles Trail Run 10:16:48 h5
2023
08.07 50mi USA25th Siskiyou Out Back 50 Miles Trail Run 9:30:35 h1 🏆
2021
06.02 242km/6stages CRC17th The Coastal Challenge - Expedition Run 27:59:18 h1 🏆
2020
07.03 50km CRC4th The Trail Challenge Cerro De La Muerte 50 kms 4:46:43 h1 🏆
2019
01.06 50km USA11th Golden Gate Dirty 30 5:10:41 h3 🥉
19.01 100km HKG9th Hong Kong 100 Ultra Trail Race 12:39:30 h15
2018
31.08 171km FRA16ème Ultra Trail Tour du Mont Blanc 25:40:09 h28
02.06 50km USA10th Golden Gate Dirty 30 5:11:30 h8
28.04 115km POR10. MIUT - Madeira Island Ultra Trail 115 km 16:07:01 h15
2017
15.10 50km CHI5° Endurance Challenge Chile 50 kms 6:50:23 h20
29.09 100mi USA19th The Bear 100 Mile Endurance Run 19:38:49 h4
03.09 50km USA5th The Rut Mountain Runs 6:25:46 h18
06.08 50km USA5th Power of Four Trail Run 5:46:01 h4
15.07 101km SUI5. Eiger Ultra Trail 101 km 12:49:01 h15
03.06 50km USA9th Golden Gate Dirty 30 5:33:53 h17
13.05 50km USA10th Endurance Challenge - New York Trail 50 km 4:29:25 h3 🥉
22.04 115km ESPVI. Penyagolosa Trail CSP-115 12:23:58 h1 🏆
24.02 125km ESPTransgrancanaria 125 km 14:22:40 h10
2016
20.08 100mi USA34th Leadville Trail 100 Mile 21:47:23 h20
15.07 100mi USA23rd Hardrock Hundred Endurance Run 31:53:00 h11
04.06 50km USA8th Golden Gate Dirty 30 5:26:13 h11
14.05 50mi USA5th Quad Rock 50 Mile 8:27:20 h5
30.04 50mi USA9th Endurance Challenge - New York Trail 50 Miles 7:54:53 h11
06.02 50km USA3rd Sean O'Brien 50 km Trail Race 4:39:10 h1 🏆
2015
03.10 50km USA8th Endurance Challenge - Wisconsin Trail 50 km 5:56:08 h116
01.08 93km USA1st Tushars 93km Mountain Runs 12:48:14 h3 🥉
30.05 50km USA7th Golden Gate Dirty 30 4:58:40 h6
09.05 73km ESP7. Transvulcania 2015 9:42:02 h62
2014
06.12 50mi USA8th Endurance Challenge - California Trail 50 Mile 6:42:54 h10
05.10 50km USA1st Endurance Challenge - Utah Trail 50 km 4:29:53 h2 🥈
26.07 50km USA16th Siskiyou Out Back 50 km Trail Run 4:05:14 h5
11.07 100mi USA21st Hardrock Hundred Endurance Run 30:18:00 h13
10.05 73km ESP6. Transvulcania 2014 7:35:22 h8
01.03 125km ESPTransgrancanaria 125 kms 14:39:03 h3 🥉
01.02 50mi USA1st Sean O'Brien 50 Mile Trail Race 7:26:55 h8
2013
09.11 80km ARGEndurance Challenge Argentina 80 km 8:01:17 h4
27.10 50km USA1st Mutual Mine 50K 6:00:46 h10
13.09 100mi USA7th Run Rabbit Run 100 Mile UltraMarathon - Hares Run 19:46:33 h5
30.08 168km FRA11ème Ultra Trail Tour du Mont Blanc 21:38:23 h4
27.07 50km USA6th Speedgoat 50k 5:47:10 h7
29.06 100mi USA40th Western States 100 Mile Endurance Run 15:17:27 h1 🏆
11.05 83.3km ESP5. Transvulcania 2013 7:11:53 h4
13.04 50mi USA5th Lake Sonoma 50 Mile Race 7:09:15 h15
16.03 100km NZL5th Tarawera 100 km Ultramarathon 8:56:47 h2 🥈
02.02 50mi USA2nd Ray Miller 50 Mile Trail Race 6:53:29 h2 🥈
13.01 50km USA13th Bandera 50 km Ultratrail 4:18:23 h1 🏆
2012
15.09 100mi USA6th Run Rabbit Run 100 Mile UltraMarathon - Hares Run 20:28:58 h3 🥉
18.08 100km USA11th Waldo 100K Trail Run 9:52:19 h1 🏆
23.06 100mi USA39th Western States 100 Mile Endurance Run 14:46:44 h1 🏆
12.05 50mi USA31st Ice Age Trail 50 Mile Run 7:01:16 h9
28.04 50mi USA20th Leona Divide 50 Mile Run 6:07:34 h2 🥈
14.04 50mi USA4th Lake Sonoma 50 Mile Race 6:36:56 h2 🥈
17.03 50km USA20th Chuckanut 50K 3:57:45 h11
07.01 100km USA12th Bandera 100 km Ultratrail 8:28:40 h1 🏆
2011
03.12 50mi USA5th Endurance Challenge - California Trail 50 Mile 6:38:54 h4
17.09 100mi USA2nd Pine to Palm 100 Mile Endurance Run 17:19:00 h1 🏆
30.07 50mi USA19th White River 50 Mile Trail Run 6:59:38 h2 🥈
25.06 100mi USA38th Western States 100 Mile Endurance Run 16:18:42 h6
21.05 50mi USA26th Silver State 50 Mile 7:16:26 h1 🏆
07.05 100km USA16th Miwok 100k Trail race 9:35:34 h18
19.03 50km USA19th Chuckanut 50K 3:50:58 h5
12.03 50km USA22nd Way Too Cool 50K Endurance Run 3:36:36 h4
2010
18.09 100mi USA1st Pine to Palm 100 Mile Endurance Run 18:38:50 h1 🏆
21.08 100km USA9th Where's Waldo 100K Ultramarathon 9:25:04 h1 🏆
31.07 50mi USA18th White River 50 Mile Trail Run 7:09:38 h6
10.07 50km USA12th Siskiyou Out Back 50 km Trail Run 3:52:04 h2 🥈
27.03 50mi USA3rd Lake Sonoma 50 Mile Race 7:41:42 h4
2009
11.07 50km USA11th Siskiyou Out Back 50 km Trail Run 4:19:43 h6