Peter Butler

Born : 1931 Cat. M95 Ultrarunner since 1981

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 ?

Canada

United States

74,0%

Rank quotient ?This runner's calculation uses 69 eligible race(s): Σ(rank − 1) = 5 103; Σ finishers = 6 896. 5 103 / 6 896 × 100 = 74.00%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed69

Km — ultra races5 124 km

> 100 km13

> 160 km1

> 24h17

Longest race160,9 km

2nd Umstead Endurance Run 100 Miles — 30/3/1996

Km per year (ultra races)

2022

2023

2024

2025

2026

Race types (share of distance)

Road49,7%

Trail50,3%

Records

50 km3h54'48 50 mi8h01'12 100 mi29h03'30 24 h155,78 km

HISTORY

69 race(s)

Date		Race	Perf.	Rk
2007
02.06	24h	18th FANS 24 Hour Runs	80.593 km	94
2006
03.06	24h	17th FANS 24 Hour Runs	80.595 km	71
2005
04.06	24h	16th FANS 24 Hour Runs	80.595 km	67
2004
05.06	24h	15th FANS 24 Hour Runs	68.912 km	58
2003
05.07	50km	10th Afton Trail Run 50K	8:31:00 h	56
07.06	24h	14th FANS 24 Hour Runs	101.694 km	48
2002
06.07	50km	9th Afton Trail Run 50K	8:26:00 h	70
29.06	24h	13th FANS 24 Hour Runs	80.595 km	64
16.02	50km	4th Withlacoochee Rails to Trails 50 km Run	6:22:16 h	21
2001
07.07	50km	8th Afton Trail Run 50K	8:17:00 h	59
23.06	24h	12th FANS 24 Hour Runs	113.297 km	48
2000
20.08	50km	Edmonton Festival 50 km Ultra Marathon Run	5:53:47 h	34
08.07	50km	7th Afton Trail Run 50K	8:24:22 h	55
24.06	24h	11th FANS 24 Hour Runs	130.936 km	24
22.04	50km	11th Trail Mix Race	7:16:49 h	97
04.03	50km	20th Carl Touchstone Memorial Mississippi Trail 50 km	7:01:40 h	61
21.01	50km	2nd Withlacoochee Rails to Trails 50 km Run	5:54:29 h	9
1999
04.12	50km	10th Sunmart Texas Trails 50 km	6:37:41 h	386
26.06	24h	10th FANS 24 Hour Runs	132.143 km	30
17.04	50km	10th Trail Mix Race	7:22:31 h	99
13.02	50km	5th East Texas Ultra Runners 50K	7:51:18 h	34
16.01	50km	1st Withlacoochee Rails to Trails 50 km Run	5:53:56 h	21
1998
12.12	50km	9th Sunmart Texas Trails 50 km	6:48:59 h	347
18.07	50km	Elkhorn Mountain Endurance Run 50 km	8:09:53 h	53
04.07	50km	5th Afton Trail Run 50K	6:58:25 h	68
27.06	24h	9th FANS 24 Hour Runs	133.736 km	27
26.04	50km	24th Lake Waramaug 50km Ultra Marathon	6:41:56 h	32
18.04	50km	9th Trail Mix Race	6:48:52 h	133
14.02	50km	4th East Texas Ultra Runners 50K	7:20:25 h	44
1997
13.12	50km	8th Sunmart Texas Trails 50 km	6:27:03 h	325
05.07	50km	4th Afton Trail Run 50K	7:08:41 h	80
28.06	24h	8th FANS 24 Hour Runs	122.792 km	29
22.03	50km	9th The HAT Run 50K	8:13:11 h	140
1996
24.08	50km	2nd Point Reyes 50K	7:52:00 h	165
03.08	50km	15th Skyline 50k Endurance Run	7:17:00 h	161
06.07	50km	3rd Afton Trail Run 50K	6:59:05 h	53
29.06	24h	7th FANS 24 Hour Runs	121.988 km	36
30.03	100mi	2nd Umstead Endurance Run 100 Miles	29:03:30 h	35
02.03	50km	16th Carl Touchstone Memorial Mississippi Trail 50 km	6:49:00 h	23
1995
02.09	50km	1st Point Reyes 50K	8:04:19 h	148
01.07	50km	2nd Afton Trail Run 50K	6:35:03 h	53
24.06	24h	6th FANS 24 Hour Runs	135.828 km	15
25.03	50km	7th The HAT Run 50K	6:17:33 h	110
1994
02.07	50km	1st Afton Trail Run 50K	6:28:09 h	53
24.04	50mi	20th Lake Waramaug 50mi Ultra Marathon	9:59:32 h	29
26.03	50mi	15th Carl Touchstone Memorial Mississippi Trail 50 Mile	9:26:57 h	21
1993
20.11	50mi	31st JFK 50 Mile	11:56:00 h	273
01.08	50km	12th Skyline 50k Endurance Run	7:55:38 h	137
26.06	24h	4th FANS 24 Hour Runs	155.784 km	17
17.04	50km	4th Trail Mix Race	6:23:47 h	76
1992
27.06	24h	3rd FANS 24 Hour Runs	148.220 km	17
18.01	50mi	Jackson Five-O	9:38:29 h	62
1991
29.06	24h	2nd FANS 24 Hour Runs	139.530 km	21
1990
27.10	50km	8th Edmund Fitzgerald 50K Road Race	4:41:26 h	15
30.06	24h	1st FANS 24 Hour Runs	146.772 km	9
05.05	40mi	12th Strolling Jim 40 Mile	7:18:12 h	91
1989
28.10	50mi	7th Mountain Masochist 50 Mile Trail Run	11:20:34 h	88
09.09	50mi	2nd McKenzie River 50 Mile Trail Run	11:44:09 h	28
20.05	50mi	8th Ice Age Trail 50 Mile Run	10:17:02 h	181
06.05	40mi	11th Strolling Jim 40 Mile	6:54:14 h	63
1988
22.10	50mi	6th Mountain Masochist 50 Mile Trail Run	10:51:43 h	81
30.07	50mi	7th Minnesota Voyageur Trail 50 Mile Ultra	12:39:10 h	39
1987
25.07	50mi	6th Minnesota Voyageur Trail 50 Mile Ultra	13:13:19 h	56
02.05	40mi	9th Strolling Jim 40 Mile	7:38:40 h	46
1986
26.07	50mi	5th Minnesota Voyageur Trail 50 Mile Ultra	13:28:31 h	37
1985
09.02	50mi	7th Jed Smith Ultra Classic - 50 Mile Race	9:13:10 h	87
1982
27.11	50km	Vilas 50 km	4:34:51 h	45
14.03	50mi	2nd Minnesota TAC 50 Mile Championships	8:01:12 h	9
1981
07.11	50km	1st Minnesota TAC 50 km	3:54:48 h	8

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	30/3/1996	2nd Umstead Endurance Run 100 Miles	160,93	×3
✓ 2	26/6/1993	4th FANS 24 Hour Runs	155,78	×3
✓ 3	27/6/1992	3rd FANS 24 Hour Runs	148,22	×2
✓ 4	30/6/1990	1st FANS 24 Hour Runs	146,77	×2
✓ 5	29/6/1991	2nd FANS 24 Hour Runs	139,53	×2
✓ 6	24/6/1995	6th FANS 24 Hour Runs	135,83	×2
✓ 7	27/6/1998	9th FANS 24 Hour Runs	133,74	×2
✓ 8	26/6/1999	10th FANS 24 Hour Runs	132,14	×2
✓ 9	24/6/2000	11th FANS 24 Hour Runs	130,94	×2
✓ 10	28/6/1997	8th FANS 24 Hour Runs	122,79	×2
✓ 11	29/6/1996	7th FANS 24 Hour Runs	121,99	×2
✓ 12	23/6/2001	12th FANS 24 Hour Runs	113,30	×2
✓ 13	7/6/2003	14th FANS 24 Hour Runs	101,69	×2
✓ 14	3/6/2006	17th FANS 24 Hour Runs	80,60	×1
✓ 15	4/6/2005	16th FANS 24 Hour Runs	80,60	×1
✓ 16	29/6/2002	13th FANS 24 Hour Runs	80,60	×1
✓ 17	2/6/2007	18th FANS 24 Hour Runs	80,59	×1
✓ 18	24/4/1994	20th Lake Waramaug 50mi Ultra Marathon	80,47	×1
✓ 19	26/3/1994	15th Carl Touchstone Memorial Mississippi Trail 50 Mile	80,47	×1
✓ 20	20/11/1993	31st JFK 50 Mile	80,47	×1
✓ 21	18/1/1992	Jackson Five-O	80,47	×1
✓ 22	28/10/1989	7th Mountain Masochist 50 Mile Trail Run	80,47	×1
✓ 23	9/9/1989	2nd McKenzie River 50 Mile Trail Run	80,47	×1
✓ 24	20/5/1989	8th Ice Age Trail 50 Mile Run	80,47	×1
✓ 25	22/10/1988	6th Mountain Masochist 50 Mile Trail Run	80,47	×1
✓ 26	30/7/1988	7th Minnesota Voyageur Trail 50 Mile Ultra	80,47	×1
✓ 27	25/7/1987	6th Minnesota Voyageur Trail 50 Mile Ultra	80,47	×1
✓ 28	26/7/1986	5th Minnesota Voyageur Trail 50 Mile Ultra	80,47	×1
✓ 29	9/2/1985	7th Jed Smith Ultra Classic - 50 Mile Race	80,47	×1
✓ 30	14/3/1982	2nd Minnesota TAC 50 Mile Championships	80,47	×1
✓ 31	5/6/2004	15th FANS 24 Hour Runs	68,91	×1
✓ 32	5/5/1990	12th Strolling Jim 40 Mile	64,37	×1
✓ 33	6/5/1989	11th Strolling Jim 40 Mile	64,37	×1
✓ 34	2/5/1987	9th Strolling Jim 40 Mile	64,37	×1
✓ 35	5/7/2003	10th Afton Trail Run 50K	50,00	×1
✓ 36	6/7/2002	9th Afton Trail Run 50K	50,00	×1
✓ 37	16/2/2002	4th Withlacoochee Rails to Trails 50 km Run	50,00	×1
✓ 38	7/7/2001	8th Afton Trail Run 50K	50,00	×1
✓ 39	20/8/2000	Edmonton Festival 50 km Ultra Marathon Run	50,00	×1
✓ 40	8/7/2000	7th Afton Trail Run 50K	50,00	×1
✓ 41	22/4/2000	11th Trail Mix Race	50,00	×1
✓ 42	4/3/2000	20th Carl Touchstone Memorial Mississippi Trail 50 km	50,00	×1
✓ 43	21/1/2000	2nd Withlacoochee Rails to Trails 50 km Run	50,00	×1
✓ 44	4/12/1999	10th Sunmart Texas Trails 50 km	50,00	×1
✓ 45	17/4/1999	10th Trail Mix Race	50,00	×1
✓ 46	13/2/1999	5th East Texas Ultra Runners 50K	50,00	×1
✓ 47	16/1/1999	1st Withlacoochee Rails to Trails 50 km Run	50,00	×1
✓ 48	12/12/1998	9th Sunmart Texas Trails 50 km	50,00	×1
✓ 49	18/7/1998	Elkhorn Mountain Endurance Run 50 km	50,00	×1
✓ 50	4/7/1998	5th Afton Trail Run 50K	50,00	×1
51	26/4/1998	24th Lake Waramaug 50km Ultra Marathon	50,00	×1
52	18/4/1998	9th Trail Mix Race	50,00	×1
53	14/2/1998	4th East Texas Ultra Runners 50K	50,00	×1
54	13/12/1997	8th Sunmart Texas Trails 50 km	50,00	×1
55	5/7/1997	4th Afton Trail Run 50K	50,00	×1
56	22/3/1997	9th The HAT Run 50K	50,00	×1
57	24/8/1996	2nd Point Reyes 50K	50,00	×1
58	3/8/1996	15th Skyline 50k Endurance Run	50,00	×1
59	6/7/1996	3rd Afton Trail Run 50K	50,00	×1
60	2/3/1996	16th Carl Touchstone Memorial Mississippi Trail 50 km	50,00	×1
61	2/9/1995	1st Point Reyes 50K	50,00	×1
62	1/7/1995	2nd Afton Trail Run 50K	50,00	×1
63	25/3/1995	7th The HAT Run 50K	50,00	×1
64	2/7/1994	1st Afton Trail Run 50K	50,00	×1
65	1/8/1993	12th Skyline 50k Endurance Run	50,00	×1
66	17/4/1993	4th Trail Mix Race	50,00	×1
67	27/10/1990	8th Edmund Fitzgerald 50K Road Race	50,00	×1
68	27/11/1982	Vilas 50 km	50,00	×1
69	7/11/1981	1st Minnesota TAC 50 km	50,00	×1