Tom Flummerfelt
ID 260707
Born : 1974 Cat. M50 Ultrarunner since 2002 USA
34
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
66
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
4
Countries visited ?ISLIcelandITAItalyJORJordanUSAUnited States
12,1%
Rank quotient ?This runner's calculation uses 34 eligible race(s): Σ(rank − 1) = 661; Σ finishers = 5 448. 661 / 5 448 × 100 = 12.13%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed44
Km — ultra races5 322 km
> 100 km19
> 160 km17
> 200 km9
> 24h3
Longest race383,0 km
8th Moab 240 Endurance Run — 11/10/2024

Km per year (ultra races)

491
2 races
2022
101
1 race
2023
463
2 races
2024
330
1 race
2025
101
1 race
2026

Race types (share of distance)

Trail81,9%
Stage9,4%
Elim.8,7%

Wins & podiums (ultra)

🏆 Win2
🏆 Win M2
🏅 Top 34
🏅 Top 3 M5
Longest winning streak1
Current streak1

Records

50 km4h21'19100 km10h21'4250 mi7h25'06100 mi18h38'1612 h101,39 kmBackyard30 loops

HISTORY

34 race(s)
DateRacePerf.Rk
2026
18.07 12h USA2nd 12 Hours of Lawrence Woods 101.388 km1 🏆
2025
14.09 330km ITA16° TOR330 - Tor des Géants 4d 16:40:06 h161
2024
11.10 238mi USA8th Moab 240 Endurance Run 3d 16:45:13 h18
27.07 50mi USA10th Pikes Peak Ultra 50 Mile 10:44:33 h9
2023
15.06 Backyard Ultra USA4th Mountain Lakes Backyard Ultra 100.590 km (15h)7
2022
11.09 330km ITA13° Tor des Géants - 330 km Endurance Trail della Valle d'Aosta 4d 21:41:44 h138
29.04 Backyard Ultra USA2nd WausaUltra Backyard Race 160.944 km (24h)4
2021
22.05 Backyard Ultra USA1st Keystone Backyard Ultra 201.180 km (30h)2 🥈
2019
08.06 50mi USA3rd Endurance Challenge - Massachusetts Trail 50 Miles 9:37:08 h7
2018
10.08 206mi USA4th Bigfoot 200 Endurance Run 2d 20:21:55 h6
18.05 106mi USA6th Cruel Jewel 100 Mile 29:35:36 h9
2017
10.09 330km ITA8° Tor des Géants - 330 km Endurance Trail della Valle d'Aosta 4d 21:12:00 h93
19.05 106mi USA5th Cruel Jewel 100 Mile 28:29:30 h4
2016
09.09 202mi USA3rd Tahoe 200 Mile Endurance Run 2d 16:20:49 h5
13.05 100mi USA4th Cruel Jewel 100 Mile 27:48:57 h6
20.02 50mi USA3rd Antelope Canyon 50 Mile Race 8:11:43 h7
2015
07.11 100mi USA15th Rio Del Lago 100 Mile Endurance Run 19:16:39 h9
2014
06.12 36mi USA1st Battle for Black Rock 36 mile 6:21:41 h4
19.07 100mi USA26th Vermont 100 Mile Endurance Race 21:00:42 h58
01.06 50mi USA2nd Cayuga Trails 50 Mile Race 9:15:00 h35
04.04 100mi USA3rd The Zion 100 Mile Run 22:04:46 h6
18.01 50mi USA2nd San Diego 50 Mile Trail 7:45:02 h4
2013
14.12 50km USA3rd Table Rock 50 km Ultra 4:21:19 h1 🏆
04.08 250km/6stages ISLRacing the Planet - Iceland 2013 25:31:20 h3 🥉
11.05 100km USA1st Gold Rush 100k 10:21:42 h6
13.04 50km USA4th Traprock 50k Ultramarathon 4:56:42 h7
13.01 50mi USA33rd Avalon Benefit 50-Mile Run 7:25:06 h7
2012
03.11 50mi USA12th Stone Cat 50 Mile 7:39:48 h8
21.07 100mi USA24th Vermont 100 Mile Endurance Race 18:38:16 h10
13.05 250km/6stages JORRacing the Planet - Jordan 2012 37:13:50 h25
24.03 50mi USA8th Bel Monte 50 Mile Endurance Run 9:32:23 h6
14.01 50mi USA32nd Avalon Benefit 50-Mile Run 7:42:17 h11
2010
30.05 50km USA5th Trail Festival at Pineland Farms 4:28:13 h8
2002
09.02 50km USA7th Holiday Lake 50K++ 4:39:52 h10