Seth Swanson
Born : 1979 Cat. M45 Ultrarunner since 2011 USA
45
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
55
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
9
Countries visited ?CHIChileESPSpainFRAFranceHKGHong KongITAItalyJPNJapanPORPortugalRSASouth AfricaUSAUnited States
1,5%
Rank quotient ?This runner's calculation uses 45 eligible race(s): Σ(rank − 1) = 261; Σ finishers = 16 971. 261 / 16 971 × 100 = 1.54%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed45
Km — ultra races4 765 km
> 100 km19
> 160 km14
> 200 km1
Longest race330,0 km

Km per year (ultra races)

278
2 races
2022
230
2 races
2023
571
3 races
2024
50
1 race
2025
171
2 races
2026

Race types (share of distance)

Trail100,0%

Wins & podiums (ultra)

🏆 Win17
🏆 Win M17
🏅 Top 328
🏅 Top 3 M28
Longest winning streak5
Current streak0

HISTORY

45 race(s)
DateRacePerf.Rk
2026
06.03 126km ESPTransgrancanaria Classic 126 km 16:23:53 h17
07.02 6h USA6th Running Up For Air - Mt. Sentinel 45.061 km1 🏆
2025
14.09 50km USA13th The Rut Mountain Runs 6:31:33 h13
2024
08.09 330km ITA15° TOR330 - Tor des Géants 3d 15:53:20 h14
26.07 100mi USA3rd Crazy Mountain 100 22:08:45 h1 🏆
08.06 50mi USA11th Scout Mountain 50 Miles Ultra Trail 9:35:56 h2 🥈
2023
18.06 100mi USA31st Bighorn Mountain Wild & Scenic 100 Mile Trail Run 20:21:23 h3 🥉
22.04 69km JPN2nd KAI 69k 7:55:54 h9
2022
26.08 170km FRA19ème Ultra Trail Tour du Mont Blanc 25:11:27 h50
18.06 108km USA9th River of No Return Endurance Run 108K 12:44:39 h1 🏆
2021
24.08 145km ITA11ème Sur les Traces des Ducs de Savoie 20:42:51 h7
10.07 55km USA8th Beaverhead 55K Endurance Run 5:36:14 h1 🏆
2019
30.11 100km RSA6th Ultra-Trail Cape Town (UTCT) 100 km 12:39:49 h27
01.09 50km USA7th The Rut Mountain Runs 5:52:47 h4
14.06 100mi USA27th Bighorn Mountain Wild & Scenic 100 Mile Trail Run 19:30:03 h1 🏆
27.04 115km POR11. MIUT - Madeira Island Ultra Trail 115 km 17:32:31 h36
2018
14.09 100mi USA12th Run Rabbit Run 100 Mile UltraMarathon - Hares Run 20:42:03 h6
27.04 170km JPN5th Ultra-Trail Mt. Fuji 20:44:29 h3 🥉
07.04 50km USA4th Woodside Purisima Creek Crossover 3:46:09 h1 🏆
2017
19.10 165.7km FRA25ème Grand Raid Réunion - La Diagonale des Fous 28:05:08 h18
03.09 50km USA5th The Rut Mountain Runs 5:56:56 h7
23.06 120km ITA11^ Lavaredo Ultra Trail by UTMB - 120K 12:34:41 h2 🥈
14.01 100km HKG7th Hong Kong 100 Ultra Trail Race 10:16:40 h6
2016
03.12 50km USA10th Endurance Challenge - California Trail 50 km 4:16:57 h4
16.10 50km CHI4° Endurance Challenge Chile 50km 6:58:53 h36
2015
28.08 170km FRA13ème Ultra Trail Tour du Mont Blanc 22:00:10 h4
27.06 100mi USA42nd Western States 100 Mile Endurance Run 15:17:28 h2 🥈
11.04 50mi USA7th Lake Sonoma 50 Mile Race 6:46:01 h6
07.02 100km USA2nd Sean O'Brien 100 km Trail Race 8:57:06 h2 🥈
2014
23.08 100mi USA16th Cascade Crest Classic 100 Mile 17:56:50 h1 🏆
28.06 100mi USA41st Western States 100 Mile Endurance Run 15:19:39 h2 🥈
26.04 50mi USA11th Capitol Peak 50 Miler 6:31:49 h1 🏆
2013
23.08 100mi USA1st Rampage the Roots - 100mi 19:40:00 h1 🏆
11.08 60km USA3rd Angels Staircase 60k 5:30:28 h2 🥈
13.07 50mi USA9th Devils Backbone 50 Miler 8:24:00 h1 🏆
14.06 50mi USA22th Bighorn Mountain Wild & Scenic 50mi Trail Run 7:17:05 h1 🏆
2012
06.10 100mi USA1st Idaho Mountain Trail Running Festival (IMTRF) 21:06:36 h1 🏆
30.06 50km USA2nd Thunderbolt Creek 50k 4:01:04 h1 🏆
20.05 50mi USA4th Sun Mountain 50 Mile Trail Races 6:08:34 h1 🏆
25.03 50km USA2nd Gorge Waterfalls 50k 3:29:33 h2 🥈
04.02 50km USA7th Orcas Island 50k 4:28:58 h1 🏆
21.01 50km USA2nd Wilson Creek Frozen 50K 5:08:03 h1 🏆
2011
08.10 50mi USA30th Le Grizz 50 Mile Ultramarathon 5:57:39 h1 🏆
05.02 50km USA6th Orcas Island 50k 4:59:39 h2 🥈
15.01 34mi USA9th Capitol Peak MegaFatAss 5:10:00 h3 🥉