Michael Levin

Born : 1943 Cat. M80 Ultrarunner since 1978

DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.

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

Countries visited ?

United States

38,7%

Rank quotient ?This runner's calculation uses 15 eligible race(s): Σ(rank − 1) = 874; Σ finishers = 2 259. 874 / 2 259 × 100 = 38.69%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed15

Km — ultra races1 321 km

> 100 km3

Longest race150,5 km

10th Western States 100 Mile Endurance Run — 25/6/1983

Km per year (ultra races)

2022

2023

2024

2025

2026

Race types (share of distance)

Road28,1%

Trail71,9%

Records

50 km3h52'27 50 mi7h04'58

HISTORY

15 race(s)

Date		Race	Perf.	Rk
1983
07.08	50km	2nd Skyline 50k Endurance Run	6:25:18 h	119
25.06	93.5mi	10th Western States 100 Mile Endurance Run	22:40:00 h	54
17.04	50mi	4th American River 50 Mile Endurance Run	7:42:39 h	66
1982
06.11	50mi	Challenge Cup 50 - 50 Mile	7:04:58 h	7
02.10	48.6mi	Cow Mountain Planet Earth Run	7:10:50 h	11
01.08	50km	1st Skyline 50k Endurance Run	4:30:23 h	63
18.04	50mi	3rd American River 50 Mile Endurance Run	9:06:50 h	111
14.02	50mi	5th Jed Smith Ultra Classic - 50 Mile Race	7:24:38 h	30
1981
07.11	50mi	Challenge Cup 50	7:16:36 h	13
03.10	48.6mi	Cow Mountain Planet Earth Run	8:37:25 h	24
27.06	93.5mi	8th Western States 100 Mile Endurance Run	27:05:00 h	105
15.02	50mi	4th Jed Smith Ultra Classic - 50 Mile Race	7:29:05 h	41
1980
28.06	93.5mi	7th Western States 100 Mile Endurance Run	28:31:39 h	103
13.04	50mi	1st American River 50 Mile Endurance Run	10:43:32 h	119
1978
02.04	50km	PA-AAU 50 km Race	3:52:27 h	23

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	25/6/1983	10th Western States 100 Mile Endurance Run	150,47	×4
✓ 2	27/6/1981	8th Western States 100 Mile Endurance Run	150,47	×4
✓ 3	28/6/1980	7th Western States 100 Mile Endurance Run	150,47	×4
✓ 4	17/4/1983	4th American River 50 Mile Endurance Run	80,47	×2
✓ 5	6/11/1982	Challenge Cup 50 - 50 Mile	80,47	×2
✓ 6	18/4/1982	3rd American River 50 Mile Endurance Run	80,47	×2
✓ 7	14/2/1982	5th Jed Smith Ultra Classic - 50 Mile Race	80,47	×2
✓ 8	7/11/1981	Challenge Cup 50	80,47	×2
✓ 9	15/2/1981	4th Jed Smith Ultra Classic - 50 Mile Race	80,47	×2
✓ 10	13/4/1980	1st American River 50 Mile Endurance Run	80,47	×2
✓ 11	2/10/1982	Cow Mountain Planet Earth Run	78,21	×2
✓ 12	3/10/1981	Cow Mountain Planet Earth Run	78,21	×2
✓ 13	7/8/1983	2nd Skyline 50k Endurance Run	50,00	×1
✓ 14	1/8/1982	1st Skyline 50k Endurance Run	50,00	×1
✓ 15	2/4/1978	PA-AAU 50 km Race	50,00	×1