Sherman Welpton

Born : 1934 Cat. M90 Ultrarunner since 1979

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

86,7%

Rank quotient ?This runner's calculation uses 18 eligible race(s): Σ(rank − 1) = 1 731; Σ finishers = 1 997. 1 731 / 1 997 × 100 = 86.68%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed18

Km — ultra races1 573 km

> 100 km4

Longest race150,5 km

9th Western States 100 Mile Endurance Run — 26/6/1982

Km per year (ultra races)

2022

2023

2024

2025

2026

Race types (share of distance)

Road27,4%

Trail72,6%

Records

50 km7h06'00 50 mi9h46'25

HISTORY

18 race(s)

Date		Race	Perf.	Rk
1984
06.10	51mi	Cow Mountain Trail Run	13:30:00 h	80
05.08	50km	3rd Skyline 50k Endurance Run	7:36:46 h	239
1983
08.10	48.6mi	Cow Mountain Planet Earth Run	11:45:00 h	69
06.08	50mi	California 50 Mile Endurance Run	13:34:23 h	45
1982
26.12	50mi	1st Recover From The Holidays Fat Ass 50	10:32:00 h	32
26.06	93.5mi	9th Western States 100 Mile Endurance Run	28:47:00 h	149
18.04	50mi	3rd American River 50 Mile Endurance Run	11:23:44 h	284
1981
12.12	40mi	Arcata to Willow Creek Run	7:28:54 h	19
29.11	50km	Ultra Challenge 50 km	7:06:00 h	77
07.11	50mi	Challenge Cup 50	9:46:25 h	46
03.10	48.6mi	Cow Mountain Planet Earth Run	10:29:54 h	35
18.09	72mi	6th Lake Tahoe 72 Miler	17:25:55 h	78
27.06	93.5mi	8th Western States 100 Mile Endurance Run	28:28:00 h	123
12.04	50mi	2nd American River 50 Mile Endurance Run	9:49:26 h	207
1980
02.11	60km	Sacramento Sixty	6:26:35 h	23
28.06	93.5mi	7th Western States 100 Mile Endurance Run	28:05:09 h	90
13.04	50mi	1st American River 50 Mile Endurance Run	11:03:44 h	128
1979
04.11	60km	Sacramento Sixty	6:11:29 h	25

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Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	26/6/1982	9th 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	18/9/1981	6th Lake Tahoe 72 Miler	115,87	×3
✓ 5	6/10/1984	Cow Mountain Trail Run	82,08	×2
✓ 6	6/8/1983	California 50 Mile Endurance Run	80,47	×2
✓ 7	26/12/1982	1st Recover From The Holidays Fat Ass 50	80,47	×2
✓ 8	18/4/1982	3rd American River 50 Mile Endurance Run	80,47	×2
✓ 9	7/11/1981	Challenge Cup 50	80,47	×2
✓ 10	12/4/1981	2nd American River 50 Mile Endurance Run	80,47	×2
✓ 11	13/4/1980	1st American River 50 Mile Endurance Run	80,47	×2
✓ 12	8/10/1983	Cow Mountain Planet Earth Run	78,21	×2
✓ 13	3/10/1981	Cow Mountain Planet Earth Run	78,21	×2
✓ 14	12/12/1981	Arcata to Willow Creek Run	64,37	×1
✓ 15	2/11/1980	Sacramento Sixty	60,00	×1
✓ 16	4/11/1979	Sacramento Sixty	60,00	×1
✓ 17	5/8/1984	3rd Skyline 50k Endurance Run	50,00	×1
✓ 18	29/11/1981	Ultra Challenge 50 km	50,00	×1