John Guendelsberger
Born : 1951 Cat. M75 Ultrarunner since 1982 USA
50
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
50
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
32,2%
Rank quotient ?This runner's calculation uses 50 eligible race(s): Σ(rank − 1) = 4 179; Σ finishers = 12 974. 4 179 / 12 974 × 100 = 32.21%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed50
Km — ultra races3 611 km
> 100 km3
> 160 km3
Longest race160,9 km

Km per year (ultra races)

2022
2023
2024
2025
2026

Race types (share of distance)

Road5,4%
Trail94,6%

Wins & podiums (ultra)

🏆 Win0
🏆 Win M0
🏅 Top 31
🏅 Top 3 M1
Longest winning streak0
Current streak0

HISTORY

50 race(s)
DateRacePerf.Rk
2018
07.04 50mi USA26th Bull Run Run 50 Miler 12:32:39 h215
2016
09.04 50mi USA24th Bull Run Run 50 Miler 12:46:25 h250
2015
11.04 50mi USA23rd Bull Run Run 50 Miler 12:02:49 h234
2014
13.12 50km USA17th Magnus Gluteus Maximus 50 km 7:05:00 h52
12.04 50mi USA22nd Bull Run Run 50 Miler 12:20:12 h233
2013
13.04 50mi USA21st Bull Run Run 50 Miler 11:24:30 h212
16.03 50km USA8th Elizabeth's Furnace Fat Ass 50 km Race 8:57:00 h46
2012
14.04 50mi USA20th Bull Run Run 50 Miler 9:57:14 h107
10.03 50km USA7th Elizabeth's Furnace Fat Ass 50 km Race 8:48:00 h35
2011
02.07 50km USA23rd Finger Lakes Fifties 50 km Run 6:59:18 h48
14.05 12h USA2nd 3 Days at the Fair 12 Hour Race 86.971 km2 🥈
09.04 50mi USA19th Bull Run Run 50 Miler 9:34:28 h102
12.03 50km USA6th Elizabeth's Furnace Fat Ass 50 km Race 8:25:00 h30
08.01 50km USA12th Salem Lakeshore Frosty Fifty 4:49:33 h60
2010
10.04 50mi USA18th Bull Run Run 50 Miler 9:57:33 h138
2009
18.04 50mi USA17th Bull Run Run 50 Miler 9:29:02 h70
14.03 50km USA4th Elizabeth's Furnace Fat Ass 50 km Race 8:24:00 h30
28.02 50km USA2nd Hashawha Hills 50 km Trail Run 5:40:00 h11
2008
13.12 50km USA13th Magnus Gluteus Maximus 50 km 6:20:00 h29
12.04 50mi USA16th Bull Run Run 50 Miler 11:13:57 h143
2007
15.12 50km USA12th Magnus Gluteus Maximus 50 km 7:15:00 h70
17.11 50mi USA45th JFK 50 Mile 9:42:03 h340
14.04 50mi USA15th Bull Run Run 50 Miler 9:41:06 h118
2006
16.12 50km USA11th Magnus Gluteus Maximus 50 km 6:00:00 h29
05.08 50km USA11th Catoctin 50k Trail Run 7:07:32 h39
08.04 50mi USA14th Bull Run Run 50 Miler 10:04:38 h90
2005
19.11 50mi USA43rd JFK 50 Mile 9:12:26 h188
16.07 100mi USA17th Vermont 100 Mile Endurance Race 26:01:44 h75
07.05 100mi USA11th Massanutten Mountain Trails 100 Mile 31:18:50 h45
09.04 50mi USA13th Bull Run Run 50 Miler 8:50:17 h36
19.03 50km USA17th The HAT Run 50K 4:58:22 h51
2004
11.12 50km USA9th Magnus Gluteus Maximus - Ponga Craka 50 km 6:15:00 h19
20.11 50mi USA42nd JFK 50 Mile 8:15:10 h71
17.04 50mi USA12th Bull Run Run 50 Miler 8:54:40 h46
27.03 50km USA16th The HAT Run 50K 5:24:45 h82
2003
22.11 50mi USA41st JFK 50 Mile 8:35:27 h95
17.05 50km USA5th Capon Valley 50K Run 4:34:45 h21
12.04 50mi USA11th Bull Run Run 50 Miler 8:45:27 h40
29.03 50km USA15th The HAT Run 50K 5:37:04 h73
2002
10.08 50km USA7th Catoctin 50k Trail Run 7:19:59 h41
12.04 50mi USA10th Bull Run Run 50 Miler 10:23:23 h118
2001
17.11 50mi USA39th JFK 50 Mile 9:07:59 h155
20.10 50mi USA19th Mountain Masochist 50 Mile Trail Run 9:47:12 h37
02.06 100mi USA23rd Old Dominion 100 Mile Endurance Run 23:15:20 h27
28.04 50km USA1st Promise Land 50K++ 6:42:01 h44
07.04 50mi USA9th Bull Run Run 50 Miler 8:48:34 h18
10.02 50km USA6th Holiday Lake 50K++ 5:16:21 h19
2000
16.12 50km USA5th Magnus Gluteus Maximus - Pang Pigu Wu Shi Gongli 50 km 6:00:00 h11
1997
22.11 50mi USA35th JFK 50 Mile 9:21:41 h177
1982
15.05 6h USAMiles for Smiles 59.545 km7