Michael Schaffer
ID 289188
Born : 1961 Cat. M65 Ultrarunner since 2011 USA
50
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
52
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
53,4%
Rank quotient ?This runner's calculation uses 59 eligible race(s): Σ(rank − 1) = 3 284; Σ finishers = 6 145. 3 284 / 6 145 × 100 = 53.44%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed59
Km — ultra races4 811 km
> 100 km15
> 160 km10
> 24h8
Longest race160,9 km
11th Grindstone 100 Mile — 4/10/2019

Km per year (ultra races)

130
2 races
2022
71
1 race
2023
50
1 race
2024
100
1 race
2025
150
2 races
2026

Race types (share of distance)

Road2,7%
Trail97,3%

Records

50 km5h02'50100 km17h16'2450 mi11h27'58100 mi25h08'1224 h136,79 km

HISTORY

59 race(s)
DateRacePerf.Rk
2026
28.06 50km USA32nd Buckeye Trail 50k 7:48:02 h123
06.06 100km USA11th Eagle Up Ultra 100 km 17:16:24 h40
2025
07.06 100km USA10th Eagle Up Ultra 100 km 19:00:16 h42
2024
23.03 50km USA11th Badwater Cape Fear 50 km 7:44:35 h63
2023
29.04 24h USA11th O24 - Outrun 24h Trail Run 70.983 km92
2022
30.07 50mi USA16th Burning River 50 Mile Endurance Run 12:35:36 h108
14.05 50km USA3rd The Forgotten 50 km Race 8:01:13 h19
2019
04.10 100mi USA11th Grindstone 100 Mile 36:43:13 h187
04.05 24h USA8th O24 - Outrun 24h Trail Run 50.008 km137
06.04 50km USA11th Forget the PR - Mohican 50k 8:22:33 h123
2018
05.10 100mi USA10th Grindstone 100 Mile 36:27:56 h189
22.09 24h USA12th North Coast 24 Hour Endurance Run 132.037 km47
2017
14.10 100mi USA9th Oil Creek 100 Miles Trail Run 30:39:16 h60
16.09 50km USA13th Youngstown Ultra Trail Classic 50K 5:42:10 h6
12.08 100mi USA4th Eastern States 100 Mile 34:29:12 h102
29.04 24h USA6th O24 - Outrun 24h Trail Run 72.594 km103
01.04 68mi USA5th Georgia Death Race 23:15:56 h167
28.01 50km USA6th Run for Regis 50K 6:19:59 h16
2016
13.08 100mi USA3rd Eastern States 100 Mile 34:50:56 h50
09.07 50km USA22th Buckeye Trail 50k 6:07:31 h35
11.06 70.5mi USA37th Laurel Highlands 70 Mile Ultra 19:33:27 h52
21.05 100km USA2nd Worlds End Ultramarathon 100K 18:46:57 h87
07.05 50km USA2nd CLE Trail 50K 6:07:16 h16
30.04 24h USA5th O24 - Outrun 24h Trail Run 136.794 km18
23.04 50km USA5th Hyner View Trail Challenge 50 km 7:09:25 h141
02.04 50km USA9th Fools 50K Trail Run 5:18:33 h16
19.03 51.4mi USA3rd Badwater Cape Fear 50 Mile 10:25:00 h31
20.02 50km USA1st Olde Girdled Grit 50K 5:26:03 h14
23.01 50km USA5th Run for Regis 50K 5:48:34 h13
2015
05.12 50km USA6th Bigfoot 50K Trail Race 6:07:20 h22
14.11 50km USA7th Bills' Badass 50K 6:19:24 h28
10.10 100mi USA7th Oil Creek 100 Miles Trail Run 30:40:54 h65
19.09 50km USA11th Youngstown Ultra Trail Classic 50K 6:17:35 h20
09.05 50km USA1st CLE Trail 50K 7:51:02 h23
02.05 24h USA4th O24 - Outrun 24h Trail Run 82.276 km89
21.03 50km USA2nd Badwater Cape Fear 50 km 6:29:00 h12
2014
23.08 50km USA4th Moebius Green Monster Trail 50K 6:14:22 h18
12.07 50km USA20th Buckeye Trail 50k 6:16:45 h51
26.04 50km USA3rd Hyner View Trail Challenge 50 km 6:47:32 h51
12.04 50km USA6th Forget the PR - Mohican 50k 6:00:33 h36
22.03 51.4mi USA1st Badwater Cape Fear 50 Mile 10:51:00 h27
15.03 50km USA2nd Buzzard Day 50 km Trail Race 6:01:00 h8
2013
09.11 50km USA5th Bills' Badass 50K 5:37:00 h5
05.10 100mi USA5th Oil Creek 100 Miles Trail Run 29:26:27 h37
14.09 50km USA9th Youngstown Ultra Trail Classic 50K 5:28:56 h15
27.07 100mi USA7th Burning River 100 Mile Endurance Run 25:08:12 h59
15.06 100mi USA24th Mohican Trail 100 Mile 26:57:59 h34
11.05 50mi USA50 Miles For Yo Momma 11:27:58 h14
28.04 50km USA5th Forget the PR - Mohican 50k 6:26:05 h52
27.04 24h USA2nd O24 - Outrun 24h Trail Run 54.717 km65
07.04 50km USA6th Fools 50K Trail Run 5:43:44 h29
23.03 50km USA1st Buzzard Day 50 km Trail Race 5:02:50 h12
03.02 50km USA6th Green Jewel 50K 5:29:32 h84
13.01 50km USA4th Run for Regis 50K 7:18:26 h45
2012
28.07 100mi USA6th Burning River 100 Mile Endurance Run 28:38:41 h150
16.06 50mi USA23th Mohican Trail 50 Mile 12:02:04 h67
28.04 24h USA1st O24 - Outrun 24h Trail Run 122.608 km12
15.04 50km USA4th Forget the PR - Mohican 50k 6:36:41 h61
2011
17.09 50km USA7th Youngstown Ultra Trail Classic 50K 6:29:06 h55