John Marshall

ID 220940

Born : 1937 Cat. M85 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

51,2%

Rank quotient ?This runner's calculation uses 85 eligible race(s): Σ(rank − 1) = 5 043; Σ finishers = 9 846. 5 043 / 9 846 × 100 = 51.22%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed85

Km — ultra races5 533 km

> 100 km2

> 160 km2

Longest race160,9 km

5th Angeles Crest 100 Mile — 29/9/1990

Km per year (ultra races)

2022

2023

2024

2025

2026

Race types (share of distance)

Road4,7%

Trail95,3%

Records

50 km4h51'30 50 mi8h01'37 100 mi30h17'20

HISTORY

85 race(s)

Date		Race	Perf.	Rk
1999
27.11	35mi	7th Santa Barbara Nine Trails 35 Mile Endurance Run	13:32:41 h	23
13.02	50km	16th San Juan Trail 50 km	7:06:31 h	61
30.01	50km	2nd San Gabriel Mountain 50K	6:57:59 h	68
1998
06.12	50km	12th OTHTC High Desert 50K Ultra	5:12:24 h	50
10.10	50km	5th Cuyamaca-Laguna 50k Trail Race	6:58:39 h	50
12.09	50km	4th Baldy Peaks 50K	8:51:11 h	21
05.09	50km	7th Bulldog 50k Ultra Run	6:35:30 h	30
01.08	50km	17th Skyline 50k Endurance Run	6:10:50 h	112
07.06	33mi	2nd Holcomb Valley 33 Mile	6:02:23 h	63
25.04	50mi	7th Leona Divide 50 Mile Run	12:00:59 h	127
04.04	50mi	19th American River 50 Mile Endurance Run	10:23:13 h	339
31.01	50km	1st San Gabriel Mountain 50K	6:49:54 h	49
1997
07.12	50km	11th OTHTC High Desert 50K Ultra	5:13:01 h	52
29.11	35mi	6th Santa Barbara Nine Trails 35 Mile Endurance Run	10:00:00 h	30
26.10	50mi	14th San Juan Trail 50 Mile	11:43:48 h	35
11.10	50km	4th Cuyamaca-Laguna 50k Trail Race	6:34:33 h	41
06.09	50km	6th Bulldog 50k Ultra Run	5:56:26 h	39
31.08	50km	3rd Run On The Sly 50 km	6:53:20 h	42
02.08	50km	16th Skyline 50k Endurance Run	5:53:38 h	105
07.06	33mi	1st Holcomb Valley 33 Mile	6:11:49 h	52
17.05	50mi	4th Bishop High Sierra Ultramarathons 50 Miles	12:26:11 h	50
16.03	50km	14th San Juan Trail 50 km	7:11:48 h	110
1996
08.12	50km	10th OTHTC High Desert 50K Ultra	5:24:02 h	59
14.09	50km	5th Bulldog 50k Ultra Run	5:57:33 h	57
08.09	50km	2nd Baldy Peaks 50K	10:17:31 h	66
01.06	50km	7th Shadow of the Giants 50K	6:24:39 h	70
20.04	50mi	5th Leona Divide 50 Mile Run	10:56:26 h	93
24.03	50km	13th San Juan Trail 50 km	6:29:00 h	69
06.01	50mi	16th Avalon Benefit 50-Mile Run	11:49:00 h	98
1995
10.12	50km	9th OTHTC High Desert 50K Ultra	5:40:18 h	65
25.11	28mi	11th Quad Dipsea Trail Run	7:26:35 h	156
09.09	50km	4th Bulldog 50k Ultra Run	6:09:48 h	52
06.08	50km	14th Skyline 50k Endurance Run	6:23:24 h	121
07.01	50mi	15th Avalon Benefit 50-Mile Run	9:31:41 h	33
1994
11.12	50km	8th OTHTC High Desert 50K Ultra	4:51:30 h	24
26.11	35mi	5th Santa Barbara Nine Trails 35 Mile Endurance Run	8:50:56 h	27
29.10	50mi	11th San Juan Trail 50 Mile	10:44:15 h	38
22.10	50km	1st Cuyamaca-Laguna 50k Trail Race	6:18:07 h	26
10.09	50mi	16th Pacific Crest Trail Fifty	11:52:26 h	26
20.08	50km	1st Baldy Peaks 50K	10:21:04 h	51
04.06	50km	5th Shadow of the Giants 50K	5:59:48 h	86
14.05	50mi	4th Lost Boys 50 Mile Trail Run	11:54:50 h	33
16.04	50mi	3rd Leona Divide 50 Mile Run	9:52:56 h	50
02.04	50mi	15th American River 50 Mile Endurance Run	9:53:31 h	297
26.03	50km	11th San Juan Trail 50 km	5:55:08 h	29
08.01	50mi	14th Avalon Benefit 50-Mile Run	8:46:05 h	29
1993
12.12	50km	7th OTHTC High Desert 50K Ultra	4:53:00 h	24
27.11	35mi	4th Santa Barbara Nine Trails 35 Mile Endurance Run	9:10:32 h	14
20.11	50mi	10th San Juan Trail 50 Mile	10:23:06 h	43
23.10	52.4mi	7th Sierra Nevada Endurance 52 Mile Run	10:55:42 h	44
11.09	50km	2nd Bulldog 50k Ultra Run	5:12:15 h	38
08.05	50km	10th Quicksilver 50 km Endurance Run	5:51:27 h	48
17.04	50mi	2nd Leona Divide 50 Mile Run	9:41:47 h	31
03.04	50mi	14th American River 50 Mile Endurance Run	9:06:09 h	193
13.03	50km	4th Way Too Cool 50K Endurance Run	5:42:50 h	135
17.01	40.5mi	Spunky Canyon Ultra	7:03:43 h	37
09.01	50mi	13th Avalon Benefit 50-Mile Run	9:29:57 h	35
1992
21.11	35mi	3rd Santa Barbara Nine Trails 35 Mile Endurance Run	8:01:00 h	7
24.10	52.4mi	6th Sierra Nevada Endurance 52 Mile Run	9:52:31 h	26
13.09	50km	1st Bulldog 50k Ultra Run	5:11:53 h	21
30.05	50km	3rd Shadow of the Giants 50K	5:41:49 h	94
18.04	50mi	1st Leona Divide 50 Mile Run	9:39:52 h	26
19.01	40.5mi	Spunky Canyon Ultra	6:31:24 h	40
11.01	50mi	12th Avalon Benefit 50-Mile Run	9:16:48 h	50
1991
30.11	35mi	2nd Santa Barbara Nine Trails 35 Mile Endurance Run	7:47:00 h	19
24.08	50km	Mule Run 50K	6:07:20 h	56
20.07	32.5mi	San Jacinto Wilderness Run	9:27:00 h	33
16.02	50mi	13th Pacific Crest Trail Fifty	10:52:14 h	64
20.01	40.5mi	Spunky Canyon Ultra	6:59:52 h	55
05.01	50mi	11th Avalon Benefit 50-Mile Run	9:22:50 h	51
1990
01.12	35mi	1st Santa Barbara Nine Trails 35 Mile Endurance Run	8:12:44 h	15
29.09	100mi	5th Angeles Crest 100 Mile	30:17:20 h	54
02.06	50km	1st Shadow of the Giants 50K	5:18:51 h	49
04.02	50mi	12th Pacific Crest Trail Fifty	11:59:59 h	50
21.01	40.5mi	Spunky Canyon Ultra	6:19:26 h	25
06.01	50mi	10th Avalon Benefit 50-Mile Run	8:33:07 h	17
1989
12.11	50km	6th San Juan Trail 50 km	5:27:48 h	38
30.09	100mi	4th Angeles Crest 100 Mile	32:23:28 h	72
20.05	50km	Cuyamaca 50 km Trail Race	6:19:37 h	77
07.01	50mi	9th Avalon Benefit 50-Mile Run	8:56:16 h	32
1988
14.02	50mi	10th Pacific Crest Trail Fifty	9:57:05 h	55
09.01	50mi	8th Avalon Benefit 50-Mile Run	8:05:30 h	15
1987
12.04	50mi	8th American River 50 Mile Endurance Run	9:06:43 h	157
10.01	50mi	7th Avalon Benefit 50-Mile Run	8:01:37 h	17
1986
16.11	50mi	3rd San Juan Trail 50 Mile	9:34:38 h	67

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	29/9/1990	5th Angeles Crest 100 Mile	160,93	×3
✓ 2	30/9/1989	4th Angeles Crest 100 Mile	160,93	×3
✓ 3	23/10/1993	7th Sierra Nevada Endurance 52 Mile Run	84,33	×1
✓ 4	24/10/1992	6th Sierra Nevada Endurance 52 Mile Run	84,33	×1
✓ 5	25/4/1998	7th Leona Divide 50 Mile Run	80,47	×1
✓ 6	4/4/1998	19th American River 50 Mile Endurance Run	80,47	×1
✓ 7	26/10/1997	14th San Juan Trail 50 Mile	80,47	×1
✓ 8	17/5/1997	4th Bishop High Sierra Ultramarathons 50 Miles	80,47	×1
✓ 9	20/4/1996	5th Leona Divide 50 Mile Run	80,47	×1
✓ 10	6/1/1996	16th Avalon Benefit 50-Mile Run	80,47	×1
✓ 11	7/1/1995	15th Avalon Benefit 50-Mile Run	80,47	×1
✓ 12	29/10/1994	11th San Juan Trail 50 Mile	80,47	×1
✓ 13	10/9/1994	16th Pacific Crest Trail Fifty	80,47	×1
✓ 14	14/5/1994	4th Lost Boys 50 Mile Trail Run	80,47	×1
✓ 15	16/4/1994	3rd Leona Divide 50 Mile Run	80,47	×1
✓ 16	2/4/1994	15th American River 50 Mile Endurance Run	80,47	×1
✓ 17	8/1/1994	14th Avalon Benefit 50-Mile Run	80,47	×1
✓ 18	20/11/1993	10th San Juan Trail 50 Mile	80,47	×1
✓ 19	17/4/1993	2nd Leona Divide 50 Mile Run	80,47	×1
✓ 20	3/4/1993	14th American River 50 Mile Endurance Run	80,47	×1
✓ 21	9/1/1993	13th Avalon Benefit 50-Mile Run	80,47	×1
✓ 22	18/4/1992	1st Leona Divide 50 Mile Run	80,47	×1
✓ 23	11/1/1992	12th Avalon Benefit 50-Mile Run	80,47	×1
✓ 24	16/2/1991	13th Pacific Crest Trail Fifty	80,47	×1
✓ 25	5/1/1991	11th Avalon Benefit 50-Mile Run	80,47	×1
✓ 26	4/2/1990	12th Pacific Crest Trail Fifty	80,47	×1
✓ 27	6/1/1990	10th Avalon Benefit 50-Mile Run	80,47	×1
✓ 28	7/1/1989	9th Avalon Benefit 50-Mile Run	80,47	×1
✓ 29	14/2/1988	10th Pacific Crest Trail Fifty	80,47	×1
✓ 30	9/1/1988	8th Avalon Benefit 50-Mile Run	80,47	×1
✓ 31	12/4/1987	8th American River 50 Mile Endurance Run	80,47	×1
✓ 32	10/1/1987	7th Avalon Benefit 50-Mile Run	80,47	×1
✓ 33	16/11/1986	3rd San Juan Trail 50 Mile	80,47	×1
✓ 34	17/1/1993	Spunky Canyon Ultra	65,18	×1
✓ 35	19/1/1992	Spunky Canyon Ultra	65,18	×1
✓ 36	20/1/1991	Spunky Canyon Ultra	65,18	×1
✓ 37	21/1/1990	Spunky Canyon Ultra	65,18	×1
✓ 38	27/11/1999	7th Santa Barbara Nine Trails 35 Mile Endurance Run	56,33	×1
✓ 39	29/11/1997	6th Santa Barbara Nine Trails 35 Mile Endurance Run	56,33	×1
✓ 40	26/11/1994	5th Santa Barbara Nine Trails 35 Mile Endurance Run	56,33	×1
✓ 41	27/11/1993	4th Santa Barbara Nine Trails 35 Mile Endurance Run	56,33	×1
✓ 42	21/11/1992	3rd Santa Barbara Nine Trails 35 Mile Endurance Run	56,33	×1
✓ 43	30/11/1991	2nd Santa Barbara Nine Trails 35 Mile Endurance Run	56,33	×1
✓ 44	1/12/1990	1st Santa Barbara Nine Trails 35 Mile Endurance Run	56,33	×1
✓ 45	7/6/1998	2nd Holcomb Valley 33 Mile	53,11	×1
✓ 46	7/6/1997	1st Holcomb Valley 33 Mile	53,11	×1
✓ 47	20/7/1991	San Jacinto Wilderness Run	52,30	×1
✓ 48	13/2/1999	16th San Juan Trail 50 km	50,00	—
✓ 49	30/1/1999	2nd San Gabriel Mountain 50K	50,00	—
✓ 50	6/12/1998	12th OTHTC High Desert 50K Ultra	50,00	—
51	10/10/1998	5th Cuyamaca-Laguna 50k Trail Race	50,00	—
52	12/9/1998	4th Baldy Peaks 50K	50,00	—
53	5/9/1998	7th Bulldog 50k Ultra Run	50,00	—
54	1/8/1998	17th Skyline 50k Endurance Run	50,00	—
55	31/1/1998	1st San Gabriel Mountain 50K	50,00	—
56	7/12/1997	11th OTHTC High Desert 50K Ultra	50,00	—
57	11/10/1997	4th Cuyamaca-Laguna 50k Trail Race	50,00	—
58	6/9/1997	6th Bulldog 50k Ultra Run	50,00	—
59	31/8/1997	3rd Run On The Sly 50 km	50,00	—
60	2/8/1997	16th Skyline 50k Endurance Run	50,00	—
61	16/3/1997	14th San Juan Trail 50 km	50,00	—
62	8/12/1996	10th OTHTC High Desert 50K Ultra	50,00	—
63	14/9/1996	5th Bulldog 50k Ultra Run	50,00	—
64	8/9/1996	2nd Baldy Peaks 50K	50,00	—
65	1/6/1996	7th Shadow of the Giants 50K	50,00	—
66	24/3/1996	13th San Juan Trail 50 km	50,00	—
67	10/12/1995	9th OTHTC High Desert 50K Ultra	50,00	—
68	9/9/1995	4th Bulldog 50k Ultra Run	50,00	—
69	6/8/1995	14th Skyline 50k Endurance Run	50,00	—
70	11/12/1994	8th OTHTC High Desert 50K Ultra	50,00	—
71	22/10/1994	1st Cuyamaca-Laguna 50k Trail Race	50,00	—
72	20/8/1994	1st Baldy Peaks 50K	50,00	—
73	4/6/1994	5th Shadow of the Giants 50K	50,00	—
74	26/3/1994	11th San Juan Trail 50 km	50,00	—
75	12/12/1993	7th OTHTC High Desert 50K Ultra	50,00	—
76	11/9/1993	2nd Bulldog 50k Ultra Run	50,00	—
77	8/5/1993	10th Quicksilver 50 km Endurance Run	50,00	—
78	13/3/1993	4th Way Too Cool 50K Endurance Run	50,00	—
79	13/9/1992	1st Bulldog 50k Ultra Run	50,00	—
80	30/5/1992	3rd Shadow of the Giants 50K	50,00	—
81	24/8/1991	Mule Run 50K	50,00	—
82	2/6/1990	1st Shadow of the Giants 50K	50,00	—
83	12/11/1989	6th San Juan Trail 50 km	50,00	—
84	20/5/1989	Cuyamaca 50 km Trail Race	50,00	—
85	25/11/1995	11th Quad Dipsea Trail Run	45,06	—