William Piper

Born : 1946 Cat. M80 Ultrarunner since 1975

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

66,5%

Rank quotient ?This runner's calculation uses 76 eligible race(s): Σ(rank − 1) = 6 279; Σ finishers = 9 443. 6 279 / 9 443 × 100 = 66.49%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed76

Km — ultra races5 200 km

> 100 km5

> 24h5

Longest race136,0 km

2nd Sri Chinmoy 24 Hour Race — 26/9/1981

Km per year (ultra races)

2022

2023

2024

2025

2026

Race types (share of distance)

Road36,1%

Trail63,9%

Wins & podiums (ultra)

🏆 Win1

🏆 Win M1

🏅 Top 33

🏅 Top 3 M4

Longest winning streak1

Current streak0

Records

50 km4h26'25 100 km10h17'12 50 mi7h17'11 12 h96,56 km 24 h135,99 km

HISTORY

76 race(s) · 4 split(s) nested

Date		Race	Perf.	Rk
2009
18.04	50km	19th Ouachita Trail 50 km	7:54:56 h	47
2006
20.08	8h	Johnny's 8-Hour Run Crocheron Park	51.914 km	43
04.02	40mi	14th Uwharrie Mountain Run	11:09:03 h	64
28.01	50km	12th Mountain Mist 50k	7:39:32 h	239
2004
20.03	50km	8th Kentucky Ultra Trail Sojourn 50 km	8:21:59 h	64
06.03	50km	24th Carl Touchstone Memorial Mississippi Trail 50 km	7:14:25 h	38
07.02	40mi	12th Uwharrie Mountain Run	11:15:08 h	81
24.01	50km	10th Mountain Mist 50k	8:18:26 h	264
2003
26.04	50km	3rd Promise Land 50K++	8:02:07 h	131
05.04	50mi	9th Umstead Endurance Run 50 Miles	12:06:09 h	52
29.03	50km	15th The HAT Run 50K	6:54:39 h	194
15.03	50km	7th Kentucky Ultra Trail Sojourn 50 km	6:22:53 h	53
01.03	50mi	23th Carl Touchstone Memorial Mississippi Trail 50 Mile	11:35:10 h	31
25.01	50km	9th Mountain Mist 50k	7:36:45 h	192
2002
02.03	50mi	22th Carl Touchstone Memorial Mississippi Trail 50 Mile	11:52:48 h	15
26.01	50km	8th Mountain Mist 50k	7:00:23 h	115
2001
20.10	50mi	19th Mountain Masochist 50 Mile Trail Run	11:49:00 h	183
28.04	50km	1st Promise Land 50K++	7:45:20 h	91
07.04	50mi	9th Bull Run Run 50 Miler	11:43:13 h	163
24.03	50km	13th The HAT Run 50K	5:58:35 h	151
17.03	50km	5th Kentucky Ultra Trail Sojourn 50 km	7:18:46 h	37
03.03	50km	21th Carl Touchstone Memorial Mississippi Trail 50 km	6:39:50 h	16
10.02	50km	6th Holiday Lake 50K++	7:04:33 h	123
27.01	50km	7th Mountain Mist 50k	7:01:12 h	106
07.01	50km	6th Recover from the Holidays 50K	5:35:31 h	14
2000
08.04	50mi	6th Umstead Endurance Run 50 Miles	15:36:08 h	89
24.03	50km	12th The HAT Run 50K	7:22:41 h	217
09.01	50km	5th Recover from the Holidays 50K	5:29:30 h	9
1999
20.11	50mi	37th JFK 50 Mile	11:05:53 h	575
10.04	50mi	5th Umstead Endurance Run 50 Miles	11:27:04 h	58
13.03	50km	3rd Catoctin 50k Trail Run	7:58:04 h	25
23.01	50km	5th Mountain Mist 50k	7:48:42 h	127
1998
12.12	50mi	9th Sunmart Texas Trails 50 Mile	12:42:58 h	264
21.11	50mi	36th JFK 50 Mile	9:52:52 h	339
07.11	50mi	6th OPSF Ultra 50 Mile Race	10:58:06 h	19
19.09	24h	8th Olander Park 24 Hour Run	113.799 km	77
18.04	50mi	6th Bull Run Run 50 Miler	11:40:18 h	135
28.03	50km	10th The HAT Run 50K	6:48:31 h	138
1997
26.09	24h	7th Olander Park 24 Hour Run	110.185 km	99
12.04	50mi	5th Bull Run Run 50 Miler	10:50:26 h	125
22.03	50km	9th The HAT Run 50K	6:52:09 h	124
1996
23.11	50mi	34th JFK 50 Mile	10:10:04 h	294
02.11	50mi	4th OPSF Ultra 50 Mile Race	12:03:49 h	24
13.10	50km	3rd Stan & Dan's 50 km Challenge Tral Run	6:42:53 h	23
14.09	24h	6th Olander Park 24 Hour Run	113.796 km	75
11.05	12h	13th Dawn to Dusk 12 Hour	96.560 km	4
11.05	50mi	13th Dawn to Dusk 12 Hour - 50mi Split	9:55:44 h	5
27.04	50km	18th Sybil Ludington 50 km Run	5:06:15 h	23
30.03	50mi	2nd Umstead Endurance Run 50 Miles	11:33:00 h	23
23.03	50km	8th The HAT Run 50K	5:59:43 h	80
1995
18.11	50mi	33rd JFK 50 Mile	10:44:53 h	271
05.08	50km	1st Catoctin 50k Trail Run	9:04:20 h	38
01.07	50km	2nd Afton Trail Run 50K	5:47:59 h	37
08.04	50mi	2nd GNC 50 Mile Run Challenge	10:15:23 h	28
25.03	50km	7th The HAT Run 50K	4:56:04 h	59
1994
09.04	50mi	1st GNC 50 Mile Run Challenge	9:16:46 h	17
09.04	50mi	2nd Bull Run Run 50 Miler	11:22:12 h	65
26.03	50km	6th The HAT Run 50K	5:36:35 h	84
1993
17.07	24h	1st Ted Corbitt 24-Hour Run	131.709 km	23
1992
04.10	60km	5th Irondequoit 60 km	8:28:00 h	3 🥉
03.10	50km	11th Lilac City 50 km	4:44:00 h	1 🏆
1991
17.11	50mi	9th Nickel City Fifty Miler	8:36:51 h	6
1984
12.08	60mi	Run to the Border	10:53:48 h	12
1983
01.10	70km	Tri-State Run	6:38:51 h	5
10.09	50km	National TAC 50 km Championship	4:26:25 h	11
06.03	100km	Old Mine Road 100 km	10:17:12 h	4
1982
17.10	50mi	Broken Spoke 50 Mile	8:50:28 h	19
03.10	60km	Canandaigua Lake 60 km	4:56:45 h	3 🥉
18.09	36mi	North Poconos Two Bridges 36 Mile	4:38:31 h	7
29.05	40mi	3rd Forest Park 40 Mile	5:57:43 h	41
1981
26.09	24h	2nd Sri Chinmoy 24 Hour Race	135.989 km	28
26.09	50km	2nd Sri Chinmoy 24 Hour Race - 50km Split	5:29:50 h	29
26.09	50mi	2nd Sri Chinmoy 24 Hour Race - 50mi Split	9:18:12 h	25
26.09	100km	2nd Sri Chinmoy 24 Hour Race - 100km Split	14:35:17 h	32
09.08	36mi	Two Bridges 36 Mile Run	5:17:04 h	19
1979
28.10	50mi	Schaefer 50-Mile	7:17:11 h	9
14.10	36mi	Dannon Two Bridges	4:30:21 h	24
1977
19.11	50mi	15th JFK 50 Mile	8:24:58 h	53
1976
16.05	50mi	3rd Lake Waramaug 50mi Ultra Marathon	7:30:21 h	10
1975
09.08	50mi	DC Road Runners 50 Mile	13:16:39 h	5

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	26/9/1981	2nd Sri Chinmoy 24 Hour Race	135,99	×2
✓ 2	17/7/1993	1st Ted Corbitt 24-Hour Run	131,71	×2
✓ 3	19/9/1998	8th Olander Park 24 Hour Run	113,80	×2
✓ 4	14/9/1996	6th Olander Park 24 Hour Run	113,80	×2
✓ 5	26/9/1997	7th Olander Park 24 Hour Run	110,19	×2
✓ 6	6/3/1983	Old Mine Road 100 km	100,00	×2
✓ 7	12/8/1984	Run to the Border	96,56	×1
✓ 8	11/5/1996	13th Dawn to Dusk 12 Hour	96,56	×1
✓ 9	5/4/2003	9th Umstead Endurance Run 50 Miles	80,47	×1
✓ 10	1/3/2003	23th Carl Touchstone Memorial Mississippi Trail 50 Mile	80,47	×1
✓ 11	2/3/2002	22th Carl Touchstone Memorial Mississippi Trail 50 Mile	80,47	×1
✓ 12	20/10/2001	19th Mountain Masochist 50 Mile Trail Run	80,47	×1
✓ 13	7/4/2001	9th Bull Run Run 50 Miler	80,47	×1
✓ 14	8/4/2000	6th Umstead Endurance Run 50 Miles	80,47	×1
✓ 15	20/11/1999	37th JFK 50 Mile	80,47	×1
✓ 16	10/4/1999	5th Umstead Endurance Run 50 Miles	80,47	×1
✓ 17	12/12/1998	9th Sunmart Texas Trails 50 Mile	80,47	×1
✓ 18	21/11/1998	36th JFK 50 Mile	80,47	×1
✓ 19	7/11/1998	6th OPSF Ultra 50 Mile Race	80,47	×1
✓ 20	18/4/1998	6th Bull Run Run 50 Miler	80,47	×1
✓ 21	12/4/1997	5th Bull Run Run 50 Miler	80,47	×1
✓ 22	23/11/1996	34th JFK 50 Mile	80,47	×1
✓ 23	2/11/1996	4th OPSF Ultra 50 Mile Race	80,47	×1
✓ 24	30/3/1996	2nd Umstead Endurance Run 50 Miles	80,47	×1
✓ 25	18/11/1995	33rd JFK 50 Mile	80,47	×1
✓ 26	8/4/1995	2nd GNC 50 Mile Run Challenge	80,47	×1
✓ 27	9/4/1994	1st GNC 50 Mile Run Challenge	80,47	×1
✓ 28	17/11/1991	9th Nickel City Fifty Miler	80,47	×1
✓ 29	17/10/1982	Broken Spoke 50 Mile	80,47	×1
✓ 30	28/10/1979	Schaefer 50-Mile	80,47	×1
✓ 31	19/11/1977	15th JFK 50 Mile	80,47	×1
✓ 32	16/5/1976	3rd Lake Waramaug 50mi Ultra Marathon	80,47	×1
✓ 33	9/8/1975	DC Road Runners 50 Mile	80,47	×1
✓ 34	1/10/1983	Tri-State Run	70,00	×1
✓ 35	4/2/2006	14th Uwharrie Mountain Run	64,37	×1
✓ 36	7/2/2004	12th Uwharrie Mountain Run	64,37	×1
✓ 37	29/5/1982	3rd Forest Park 40 Mile	64,37	×1
✓ 38	4/10/1992	5th Irondequoit 60 km	60,00	×1
✓ 39	3/10/1982	Canandaigua Lake 60 km	60,00	×1
✓ 40	18/9/1982	North Poconos Two Bridges 36 Mile	57,94	×1
✓ 41	9/8/1981	Two Bridges 36 Mile Run	57,94	×1
✓ 42	14/10/1979	Dannon Two Bridges	57,94	×1
✓ 43	20/8/2006	Johnny's 8-Hour Run Crocheron Park	51,91	×1
✓ 44	18/4/2009	19th Ouachita Trail 50 km	50,00	×1
✓ 45	28/1/2006	12th Mountain Mist 50k	50,00	×1
✓ 46	20/3/2004	8th Kentucky Ultra Trail Sojourn 50 km	50,00	×1
✓ 47	6/3/2004	24th Carl Touchstone Memorial Mississippi Trail 50 km	50,00	×1
✓ 48	24/1/2004	10th Mountain Mist 50k	50,00	×1
✓ 49	26/4/2003	3rd Promise Land 50K++	50,00	×1
✓ 50	29/3/2003	15th The HAT Run 50K	50,00	×1
51	15/3/2003	7th Kentucky Ultra Trail Sojourn 50 km	50,00	×1
52	25/1/2003	9th Mountain Mist 50k	50,00	×1
53	26/1/2002	8th Mountain Mist 50k	50,00	×1
54	28/4/2001	1st Promise Land 50K++	50,00	×1
55	24/3/2001	13th The HAT Run 50K	50,00	×1
56	17/3/2001	5th Kentucky Ultra Trail Sojourn 50 km	50,00	×1
57	3/3/2001	21th Carl Touchstone Memorial Mississippi Trail 50 km	50,00	×1
58	10/2/2001	6th Holiday Lake 50K++	50,00	×1
59	27/1/2001	7th Mountain Mist 50k	50,00	×1
60	7/1/2001	6th Recover from the Holidays 50K	50,00	×1
61	24/3/2000	12th The HAT Run 50K	50,00	×1
62	9/1/2000	5th Recover from the Holidays 50K	50,00	×1
63	13/3/1999	3rd Catoctin 50k Trail Run	50,00	×1
64	23/1/1999	5th Mountain Mist 50k	50,00	×1
65	28/3/1998	10th The HAT Run 50K	50,00	×1
66	22/3/1997	9th The HAT Run 50K	50,00	×1
67	13/10/1996	3rd Stan & Dan's 50 km Challenge Tral Run	50,00	×1
68	27/4/1996	18th Sybil Ludington 50 km Run	50,00	×1
69	23/3/1996	8th The HAT Run 50K	50,00	×1
70	5/8/1995	1st Catoctin 50k Trail Run	50,00	×1
71	1/7/1995	2nd Afton Trail Run 50K	50,00	×1
72	25/3/1995	7th The HAT Run 50K	50,00	×1
73	26/3/1994	6th The HAT Run 50K	50,00	×1
74	3/10/1992	11th Lilac City 50 km	50,00	×1
75	10/9/1983	National TAC 50 km Championship	50,00	×1