John DeWalt

Born : 1936 Cat. M90 Ultrarunner since 1986

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

64,1%

Rank quotient ?This runner's calculation uses 80 eligible race(s): Σ(rank − 1) = 3 961; Σ finishers = 6 184. 3 961 / 6 184 × 100 = 64.05%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed98

Km — ultra races10 317 km

> 100 km48

> 160 km43

> 200 km6

Longest race254,3 km

Trail Run Across the Commonwealth (TRAC) — 18/9/1997

Km per year (ultra races)

2022

2023

2024

2025

2026

Race types (share of distance)

Trail85,2%

Stage14,8%

Wins & podiums (ultra)

🏆 Win3

🏆 Win M3

🏅 Top 35

🏅 Top 3 M5

Longest winning streak1

Current streak0

Records

50 km6h56'00 50 mi9h19'55 100 mi22h35'00

HISTORY

80 race(s)

Date		Race	Perf.	Rk
2010
18.09	50km	6th Youngstown Ultra Trail Classic 50K	6:58:00 h	53
2009
19.09	50km	5th Youngstown Ultra Trail Classic 50K	6:58:00 h	45
10.07	100mi	16th Hardrock Hundred Endurance Run	47:47:17 h	101
2008
19.10	50km	1st Potomac Heritage Trail	6:56:00 h	28
20.09	50km	4th Youngstown Ultra Trail Classic 50K	7:06:30 h	44
11.07	100mi	15th Hardrock Hundred Endurance Run	47:54:58 h	97
2007
15.09	50km	3rd Youngstown Ultra Trail Classic 50K	7:23:35 h	38
14.07	100mi	14th Hardrock Hundred Endurance Run	47:36:23 h	94
13.01	50km	2nd Elizabeth's Furnace Fat Ass 50 km Race	8:35:00 h	22
2006
16.09	50km	2nd Youngstown Ultra Trail Classic 50K	8:09:53 h	44
15.07	100mi	13th Hardrock Hundred Endurance Run	47:49:52 h	81
2005
08.10	71.1mi	4th The Ring 71-mile Run	26:55:00 h	10
09.07	100mi	12th Hardrock Hundred Endurance Run	45:20:18 h	44
17.06	100mi	14th Bighorn Mountain Wild & Scenic 100mi Trail Run	33:09:46 h	47
2004
10.07	100mi	11th Hardrock Hundred Endurance Run	45:06:33 h	62
18.06	50mi	13th Bighorn Mountain Wild & Scenic 50mi Trail Run	13:34:39 h	65
2003
11.07	100mi	10th Hardrock Hundred Endurance Run	44:44:44 h	46
14.06	70.5mi	24th Laurel Highlands 70 Mile Ultra	19:42:37 h	25
2002
19.10	50mi	20th Mountain Masochist 50 Mile Trail Run	10:25:42 h	115
12.04	50mi	10th Bull Run Run 50 Miler	11:45:14 h	202
2001
13.07	100mi	9th Hardrock Hundred Endurance Run	39:52:35 h	26
02.06	100mi	23rd Old Dominion 100 Mile Endurance Run	26:30:15 h	52
07.04	50mi	9th Bull Run Run 50 Miler	10:19:17 h	83
12.03	40mi	7th The Barkley Marathons 40 Mile	25:24:00 h	7
2000
07.07	100mi	8th Hardrock Hundred Endurance Run	44:28:21 h	44
03.06	100mi	22nd Old Dominion 100 Mile Endurance Run	27:09:04 h	55
15.04	50mi	8th Bull Run Run 50 Miler	10:24:05 h	116
1999
06.11	50mi	17th Mountain Masochist 50 Mile Trail Run	10:36:23 h	73
09.07	100mi	7th Hardrock Hundred Endurance Run	42:03:53 h	41
19.06	34mi	3rd Rachel Carson Trail Challenge	8:05:00 h	2 🥈
05.06	100mi	21st Old Dominion 100 Mile Endurance Run	27:17:06 h	55
08.05	100mi	5th Massanutten Mountain Trails 100 Mile	33:47:14 h	47
17.04	50mi	7th Bull Run Run 50 Miler	10:06:34 h	90
03.04	40mi	5th The Barkley Marathons 40 Mile	25:02:27 h	1 🏆
1998
07.11	50mi	16th Mountain Masochist 50 Mile Trail Run	10:54:08 h	101
10.07	100mi	6th Hardrock Hundred Endurance Run	46:32:36 h	31
06.06	100mi	20th Old Dominion 100 Mile Endurance Run	26:27:09 h	54
09.05	100mi	4th Massanutten Mountain Trails 100 Mile	30:27:29 h	27
18.04	50mi	6th Bull Run Run 50 Miler	9:57:13 h	73
04.04	60mi	4th The Barkley Marathons 60 Mile Fun Run	39:23:46 h	5
21.02	50mi	12th Wild Oak Trail 50 Mile Race	18:53:30 h	21
1997
18.09	158mi/4stages	Trail Run Across the Commonwealth	44:07:37 h	9
01.09	158mi/4stages	Trail Run Across the Commonwealth	44:07:37 h	9
11.07	100mi	5th Hardrock Hundred Endurance Run	45:06:54 h	31
21.06	34mi	2nd Rachel Carson Trail Challenge	9:55:00 h	1 🏆
31.05	100mi	19th Old Dominion 100 Mile Endurance Run	27:40:44 h	53
17.05	100mi	3rd Massanutten Mountain Trails 100 Mile	31:23:00 h	23
12.04	50mi	5th Bull Run Run 50 Miler	10:21:06 h	102
1996
12.07	100mi	4th Hardrock Hundred Endurance Run	46:58:23 h	40
22.06	34mi	1st Rachel Carson Trail Challenge	11:45:00 h	1 🏆
01.06	100mi	18th Old Dominion 100 Mile Endurance Run	27:50:28 h	38
13.04	50mi	4th Bull Run Run 50 Miler	11:27:45 h	71
1995
01.09	158mi/4stages	Trail Run Across the Commonwealth	41:42:31 h	4
13.05	100mi	1st Massanutten Mountain Trails 100 Mile	33:58:40 h	27
08.04	50mi	3rd Bull Run Run 50 Miler	10:52:16 h	46
1994
01.09	158mi/4stages	Trail Run Across the Commonwealth	39:03:51 h	3 🥉
07.07	100mi	3rd Hardrock Hundred Endurance Run	47:50:21 h	37
09.04	50mi	2nd Bull Run Run 50 Miler	10:35:18 h	51
1993
01.09	158mi/4stages	Trail Run Across the Commonwealth	43:53:09 h	6
19.06	100mi	4th Mohican Trail 100 Mile	29:50:00 h	24
17.04	50mi	1st Bull Run Run 50 Miler	11:53:00 h	38
1992
10.10	100mi	2nd Arkansas Traveller 100	23:47:27 h	33
01.09	158mi/4stages	Trail Run Across the Commonwealth	38:44:27 h	7
20.06	100mi	3rd Mohican Trail 100 Mile	24:58:00 h	17
06.06	100mi	14th Old Dominion 100 Mile Endurance Run	27:20:00 h	55
1991
26.10	50mi	9th Mountain Masochist 50 Mile Trail Run	11:41:06 h	161
17.08	100mi	9th Leadville Trail 100 Mile	29:40:50 h	136
27.07	100mi	3rd Vermont 100 Mile Endurance Race	22:35:00 h	71
15.06	100mi	2nd Mohican Trail 100 Mile	27:12:00 h	15
08.06	70.5mi	12th Laurel Highlands 70 Mile Ultra	17:49:04 h	18
01.06	100mi	13th Old Dominion 100 Mile Endurance Run	27:28:01 h	30
1990
21.07	100mi	2nd Vermont 100 Mile Endurance Race	25:36:02 h	89
16.06	100mi	1st Mohican Trail 100 Mile	28:39:00 h	33
1989
24.06	100mi	16th Western States 100 Mile Endurance Run	29:43:08 h	244
1988
10.09	50mi	5th Groundhog Fall 50 Mile Endurance Run	9:19:55 h	57
1987
21.11	50mi	25th JFK 50 Mile	9:21:02 h	73
24.10	50mi	5th Mountain Masochist 50 Mile Trail Run	10:46:20 h	37
22.08	100mi	5th Leadville Trail 100 Mile	28:53:41 h	65
13.06	70.5mi	8th Laurel Highlands 70 Mile Ultra	17:34:55 h	8
1986
14.06	70.5mi	7th Laurel Highlands 70 Mile Ultra	19:42:15 h	11

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	18/9/1997	Trail Run Across the Commonwealth (TRAC)	254,28	×3
✓ 2	1/9/1997	Trail Run Across the Commonwealth (TRAC)	254,28	×3
✓ 3	1/9/1995	Trail Run Across the Commonwealth (TRAC)	254,28	×3
✓ 4	1/9/1994	Trail Run Across the Commonwealth (TRAC)	254,28	×3
✓ 5	1/9/1993	Trail Run Across the Commonwealth (TRAC)	254,28	×3
✓ 6	1/9/1992	Trail Run Across the Commonwealth (TRAC)	254,28	×3
✓ 7	10/7/2009	16th Hardrock Hundred Endurance Run	160,93	×2
✓ 8	11/7/2008	15th Hardrock Hundred Endurance Run	160,93	×2
✓ 9	14/7/2007	14th Hardrock Hundred Endurance Run	160,93	×2
✓ 10	15/7/2006	13th Hardrock Hundred Endurance Run	160,93	×2
✓ 11	9/7/2005	12th Hardrock Hundred Endurance Run	160,93	×2
✓ 12	17/6/2005	14th Bighorn Mountain Wild & Scenic 100mi Trail Run	160,93	×2
✓ 13	10/7/2004	11th Hardrock Hundred Endurance Run	160,93	×2
✓ 14	11/7/2003	10th Hardrock Hundred Endurance Run	160,93	×2
✓ 15	13/7/2001	9th Hardrock Hundred Endurance Run	160,93	×2
✓ 16	2/6/2001	23rd Old Dominion 100 Mile Endurance Run	160,93	×2
✓ 17	7/7/2000	8th Hardrock Hundred Endurance Run	160,93	×2
✓ 18	3/6/2000	22nd Old Dominion 100 Mile Endurance Run	160,93	×2
✓ 19	9/7/1999	7th Hardrock Hundred Endurance Run	160,93	×2
✓ 20	5/6/1999	21st Old Dominion 100 Mile Endurance Run	160,93	×2
✓ 21	8/5/1999	5th Massanutten Mountain Trails 100 Mile	160,93	×2
✓ 22	10/7/1998	6th Hardrock Hundred Endurance Run	160,93	×2
✓ 23	6/6/1998	20th Old Dominion 100 Mile Endurance Run	160,93	×2
✓ 24	9/5/1998	4th Massanutten Mountain Trails 100 Mile	160,93	×2
✓ 25	11/7/1997	5th Hardrock Hundred Endurance Run	160,93	×2
✓ 26	31/5/1997	19th Old Dominion 100 Mile Endurance Run	160,93	×2
✓ 27	17/5/1997	3rd Massanutten Mountain Trails 100 Mile	160,93	×2
✓ 28	12/7/1996	4th Hardrock Hundred Endurance Run	160,93	×2
✓ 29	1/6/1996	18th Old Dominion 100 Mile Endurance Run	160,93	×2
✓ 30	13/5/1995	1st Massanutten Mountain Trails 100 Mile	160,93	×2
✓ 31	7/7/1994	3rd Hardrock Hundred Endurance Run	160,93	×2
✓ 32	19/6/1993	4th Mohican Trail 100 Mile	160,93	×2
✓ 33	10/10/1992	2nd Arkansas Traveller 100	160,93	×2
✓ 34	20/6/1992	3rd Mohican Trail 100 Mile	160,93	×2
✓ 35	6/6/1992	14th Old Dominion 100 Mile Endurance Run	160,93	×2
✓ 36	17/8/1991	9th Leadville Trail 100 Mile	160,93	×2
✓ 37	27/7/1991	3rd Vermont 100 Mile Endurance Race	160,93	×2
✓ 38	15/6/1991	2nd Mohican Trail 100 Mile	160,93	×2
✓ 39	1/6/1991	13th Old Dominion 100 Mile Endurance Run	160,93	×2
✓ 40	21/7/1990	2nd Vermont 100 Mile Endurance Race	160,93	×2
✓ 41	16/6/1990	1st Mohican Trail 100 Mile	160,93	×2
✓ 42	24/6/1989	16th Western States 100 Mile Endurance Run	160,93	×2
✓ 43	22/8/1987	5th Leadville Trail 100 Mile	160,93	×2
✓ 44	8/10/2005	4th The Ring 71-mile Run	114,42	×1
✓ 45	14/6/2003	24th Laurel Highlands 70 Mile Ultra	113,46	×1
✓ 46	8/6/1991	12th Laurel Highlands 70 Mile Ultra	113,46	×1
✓ 47	13/6/1987	8th Laurel Highlands 70 Mile Ultra	113,46	×1
✓ 48	14/6/1986	7th Laurel Highlands 70 Mile Ultra	113,46	×1
✓ 49	4/4/1998	4th The Barkley Marathons 60 Mile Fun Run	96,56	×1
✓ 50	18/6/2004	13th Bighorn Mountain Wild & Scenic 50mi Trail Run	80,47	×1
✓ 51	19/10/2002	20th Mountain Masochist 50 Mile Trail Run	80,47	×1
✓ 52	12/4/2002	10th Bull Run Run 50 Miler	80,47	×1
✓ 53	7/4/2001	9th Bull Run Run 50 Miler	80,47	×1
✓ 54	15/4/2000	8th Bull Run Run 50 Miler	80,47	×1
✓ 55	6/11/1999	17th Mountain Masochist 50 Mile Trail Run	80,47	×1
✓ 56	17/4/1999	7th Bull Run Run 50 Miler	80,47	×1
✓ 57	7/11/1998	16th Mountain Masochist 50 Mile Trail Run	80,47	×1
✓ 58	18/4/1998	6th Bull Run Run 50 Miler	80,47	×1
✓ 59	21/2/1998	12th Wild Oak Trail 50 Mile Race	80,47	×1
✓ 60	12/4/1997	5th Bull Run Run 50 Miler	80,47	×1
✓ 61	13/4/1996	4th Bull Run Run 50 Miler	80,47	×1
✓ 62	8/4/1995	3rd Bull Run Run 50 Miler	80,47	×1
✓ 63	9/4/1994	2nd Bull Run Run 50 Miler	80,47	×1
✓ 64	17/4/1993	1st Bull Run Run 50 Miler	80,47	×1
✓ 65	26/10/1991	9th Mountain Masochist 50 Mile Trail Run	80,47	×1
✓ 66	10/9/1988	5th Groundhog Fall 50 Mile Endurance Run	80,47	×1
✓ 67	21/11/1987	25th JFK 50 Mile	80,47	×1
✓ 68	24/10/1987	5th Mountain Masochist 50 Mile Trail Run	80,47	×1
69	12/3/2001	7th The Barkley Marathons 40 Mile	64,37	—
70	3/4/1999	5th The Barkley Marathons 40 Mile	64,37	—
71	19/6/1999	3rd Rachel Carson Trail Challenge	54,72	—
72	21/6/1997	2nd Rachel Carson Trail Challenge	54,72	—
73	22/6/1996	1st Rachel Carson Trail Challenge	54,72	—
74	18/9/2010	6th Youngstown Ultra Trail Classic 50K	50,00	—
75	19/9/2009	5th Youngstown Ultra Trail Classic 50K	50,00	—
76	19/10/2008	1st Potomac Heritage Trail	50,00	—
77	20/9/2008	4th Youngstown Ultra Trail Classic 50K	50,00	—
78	15/9/2007	3rd Youngstown Ultra Trail Classic 50K	50,00	—
79	13/1/2007	2nd Elizabeth's Furnace Fat Ass 50 km Race	50,00	—
80	16/9/2006	2nd Youngstown Ultra Trail Classic 50K	50,00	—