Ken Lonseth
ID 368903
Born : 1969 Cat. M55 Ultrarunner since 2010 USA
28
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
40
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
1
Countries visited ?USAUnited States
43,8%
Rank quotient ?This runner's calculation uses 28 eligible race(s): Σ(rank − 1) = 1 893; Σ finishers = 4 325. 1 893 / 4 325 × 100 = 43.77%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed28
Km — ultra races1 989 km
> 100 km4
> 160 km3
> 24h2
Longest race161,7 km
2nd Holston River Endurance Challenge - 36 Hour Run — 5/8/2016

Km per year (ultra races)

2022
2023
2024
2025
54
1 race
2026

Race types (share of distance)

Road33,2%
Trail66,8%

Wins & podiums (ultra)

🏆 Win1
🏆 Win M1
🏅 Top 32
🏅 Top 3 M3
Longest winning streak1
Current streak0

Records

50 km4h20'5850 mi9h37'00100 mi23h45'406 h52,30 km12 h95,55 km

HISTORY

28 race(s)
DateRacePerf.Rk
2026
26.07 8h USA25th Hot to Trot 8 Hours Run 54.073 km23
2021
20.11 81.3km USA59th JFK 50 Mile 9:37:00 h309
23.10 50km USA7th Firewater 50k Trail Race 6:16:25 h11
2019
06.04 50km USA5th Yamacraw 50k 5:34:13 h40
26.01 50km USA25th Mountain Mist 50k 6:48:46 h179
2018
01.09 50mi USA13th Iron Mountain 50 Mile Trail Run 10:19:34 h22
04.08 6h USA4th Holston River Endurance Challenge - 6 Hour Saturday Night Run 52.303 km1 🏆
07.04 50km USA4th Yamacraw 50k 7:21:06 h85
2017
07.10 50km USA3rd The Naturalist Trail Race 8:12:17 h17
2016
31.12 100mi USA5th The Pistol 100 Mile Ultra Run 23:45:40 h19
05.08 36h USA2nd Holston River Endurance Challenge - 36 Hour Run 161.739 km9
30.04 12h USA1st Three Sisters Ultra Festival 12 Hour Run 95.554 km2 🥈
02.01 55km USA4th The Pistol 55 km Ultra Run 5:56:59 h35
2015
24.10 50km USA1st Firewater 50k Trail Race 6:36:50 h6
03.10 50km USA7th Cumberland Trail 50k 9:30:42 h22
19.09 50km USA2nd The Barkley Fall Classic 13:01:46 h98
01.08 36h USA1st Holston River Endurance Challenge - 36 Hour Run 125.528 km13
13.03 100mi USA1st Monument Valley 100 Mile 31:17:27 h15
2014
11.10 50km USA6th Cumberland Trail 50k 7:38:00 h8
20.09 50km USA1st The Barkley Fall Classic 11:45:59 h90
04.01 50km USA2nd The Pistol 50 km Ultra Run 4:20:58 h8
2013
14.12 50mi USA6th Lookout Mountain 50 Mile Race 11:10:29 h100
05.10 50km USA12th Rock/Creek StumpJump 50K 6:59:23 h139
07.09 50km USA4th Norris Dam Hard Trail Race 50K 6:08:07 h10
01.06 50km USA1st Music City Trail Ultra 8:25:51 h30
2012
15.12 50mi USA5th Lookout Mountain 50 Mile Race 11:28:07 h126
2011
01.10 50km USA10th Rock/Creek StumpJump 50K 7:33:51 h251
2010
02.10 50km USA9th Rock/Creek StumpJump 50K 7:55:39 h253