Mike Klopfenstein
ID 24231
Born : 1972 Cat. M50 Ultrarunner since 2005 USA
31
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
61,6%
Rank quotient ?This runner's calculation uses 31 eligible race(s): Σ(rank − 1) = 1 683; Σ finishers = 2 731. 1 683 / 2 731 × 100 = 61.63%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed31
Km — ultra races2 304 km
> 100 km3
> 160 km3
> 24h4
Longest race160,9 km
9th The Hennepin Hundred - 100 Mile Run — 7/10/2023

Km per year (ultra races)

58
1 race
2022
251
2 races
2023
137
2 races
2024
51
1 race
2025
127
2 races
2026

Race types (share of distance)

Road41,0%
Trail59,0%

Wins & podiums (ultra)

🏆 Win0
🏆 Win M0
🏅 Top 31
🏅 Top 3 M2
Longest winning streak0
Current streak0

Records

50 mi9h32'14100 mi26h52'0112 h90,12 km24 h95,06 km

HISTORY

31 race(s)
DateRacePerf.Rk
2026
17.07 24h USA4th Pinetum Mind Games Endurance Event 24h 80.695 km14
16.05 11h USA2nd Chicago 7-11 Hour Endurance Ru 46.349 km32
2025
10.05 7h USA1st Chicago 7-11 Hour Endurance Ru 50.694 km4
2024
05.10 50mi USA10th The Hennepin Hundred - 50 Mile Run 12:28:33 h49
11.05 8h USA6th Galena Sky Trail Race 8 Hours 57.002 km32
2023
07.10 100mi USA9th The Hennepin Hundred - 100 Mile Run 26:52:01 h127
18.08 12h USA1st We run the night 12 hour 90.123 km2 🥈
2022
27.08 12h USA2nd Timely Nonsense - 12h 57.759 km8
2019
10.08 8h USA29th Howl at the Moon 8 Hour Run 50.694 km132
2018
11.08 8h USA28th Howl at the Moon 8 Hour Run 48.457 km158
19.05 8h USA1st Galena Sky Trail Race 8 Hours 45.463 km63
2017
12.08 8h USA27th Howl at the Moon 8 Hour Run 55.361 km115
2016
26.03 30mi USA10th Clinton Lake Ultra 7:05:52 h70
2015
08.08 8h USA25th Howl at the Moon 8 Hour Run 53.752 km121
2014
15.11 50mi USA1st Tunnel Hill 50 Mile Race 13:03:01 h149
11.10 50mi USA9th Farmdale Trail Run 50 Mile 13:45:40 h26
2013
12.10 30mi USA8th Farmdale Trail Run 30 Mile 8:17:15 h48
2010
14.08 8h USA20th Howl at the Moon 8h Run 53.752 km108
2009
02.05 24h USA28th Cornbelt Running Club 24 Hour Run 91.459 km35
2008
11.10 33mi USA3rd Farmdale Trail Run 30 Mile 6:02:48 h13
11.04 100mi USA8th McNaughton 100 Mile Ultra Race 29:48:59 h5
29.03 24h USA2nd 24 Hours of Utah 95.063 km14
2007
27.10 50mi USA8th Chicago Lakefront Fall 50 Mile Race 9:32:14 h50
13.10 33mi USA2nd Farmdale Trail Run 30 Mile 5:54:00 h17
11.08 8h USA17th Howl at the Moon 8h Run 63.536 km45
05.05 24h USA26th Cornbelt Running Club 24 Hour Run 81.288 km32
13.04 100mi USA7th McNaughton 100 Mile Ultra Race 31:28:51 h15
10.03 50mi USA4th Land Between The Lakes 50 Mile Trail Run 10:02:34 h26
2006
12.08 8h USA16th Howl at the Moon 8h Run 63.536 km71
15.04 50mi USA6th McNaughton 50 Mile Ultra Race 12:23:09 h29
2005
13.08 8h USA15th Howl at the Moon 8h Run 50.871 km104