Jay Grobeson

Born : 1960 Cat. M65 Ultrarunner since 1989

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 ?

South Africa

United States

38,1%

Rank quotient ?This runner's calculation uses 131 eligible race(s): Σ(rank − 1) = 10 033; Σ finishers = 26 319. 10 033 / 26 319 × 100 = 38.12%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed131

Km — ultra races12 769 km

> 100 km42

> 160 km42

> 200 km1

Longest race217,3 km

14th Badwater Ultramarathon — 27/7/2000

Km per year (ultra races)

2022

2023

2024

2025

2026

Race types (share of distance)

Road3,6%

Trail96,4%

Wins & podiums (ultra)

🏆 Win0

🏆 Win M0

🏅 Top 33

🏅 Top 3 M3

Longest winning streak0

Current streak0

Records

50 km4h30'43 100 km11h03'25 50 mi8h21'24 100 mi19h15'38

HISTORY

131 race(s)

Date		Race	Perf.	Rk
2012
10.11	50km	2nd Bootlegger 50K	6:42:08 h	38
2011
05.11	50km	1st Bootlegger 50K	6:15:20 h	23
2010
25.09	50km	4th Noble Canyon 50k	8:18:19 h	109
2009
22.08	100mi	27th Leadville Trail 100 Mile	28:40:29 h	169
18.04	50mi	17th Leona Divide 50 Mile Run	10:06:02 h	42
2007
29.09	50km	1st Noble Canyon 50k	6:27:11 h	55
2006
03.12	50km	20th OTHTC High Desert 50K Ultra	5:10:08 h	51
2005
04.12	50km	19th OTHTC High Desert 50K Ultra	4:36:55 h	30
17.09	100mi	19th Angeles Crest 100 Mile	23:29:40 h	7
20.08	100mi	23rd Leadville Trail 100 Mile	26:22:33 h	72
26.02	50km	2nd Lake Hodges Trail Fest 50K	5:56:53 h	34
2004
18.09	100mi	18th Angeles Crest 100 Mile	24:20:04 h	9
21.08	100mi	22nd Leadville Trail 100 Mile	24:35:34 h	36
24.07	50km	9th Baldy Peaks 50K	8:10:39 h	23
26.06	100mi	31th Western States 100 Mile Endurance Run	22:53:01 h	49
15.05	50mi	11th Bishop High Sierra Ultramarathons 50 Miles	11:15:56 h	38
17.04	50mi	13th Leona Divide 50 Mile Run	9:47:22 h	42
03.04	50km	6th San Gabriel Mountain 50K	6:04:42 h	10
27.03	50km	21th San Juan Trail 50 km	6:04:34 h	37
13.03	50km	1st Lake Hodges Trail Fest 50K	5:09:22 h	24
10.01	50mi	24th Avalon Benefit 50-Mile Run	10:00:19 h	44
2003
07.12	50km	17th OTHTC High Desert 50K Ultra	4:50:52 h	37
08.11	100mi	1st Javelina Jundred 100 Mile	21:45:30 h	8
11.10	50km	10th Cuyamaca-Laguna 50k Trail Race	5:41:53 h	12
06.09	100mi	24th Wasatch Front 100 Mile	26:13:03 h	15
16.08	100mi	21st Leadville Trail 100 Mile	23:33:02 h	19
16.06	89km road race	78th Comrades Marathon - Down Run	10:14:15 h	5824
17.05	50mi	10th Bishop High Sierra Ultramarathons 50 Miles	12:01:26 h	40
03.05	100km	8th Miwok 100k Trail race	13:20:30 h	100
26.04	50mi	12th Leona Divide 50 Mile Run	9:26:27 h	29
19.04	50km	17th Ruth Anderson Ultra 50km	4:55:18 h	10
05.04	50mi	24th American River 50 Mile Endurance Run	8:24:59 h	76
29.03	50km	20th San Juan Trail 50 km	5:49:01 h	21
2002
08.12	50km	16th OTHTC High Desert 50K Ultra	4:42:52 h	35
30.11	35mi	10th Santa Barbara Nine Trails 35 Mile Endurance Run	8:51:17 h	24
17.08	100mi	20th Leadville Trail 100 Mile	26:13:59 h	62
29.06	100mi	29th Western States 100 Mile Endurance Run	26:40:05 h	125
04.05	100km	7th Miwok 100k Trail race	12:09:50 h	68
2001
09.12	50km	15th OTHTC High Desert 50K Ultra	4:38:48 h	27
24.11	35mi	9th Santa Barbara Nine Trails 35 Mile Endurance Run	8:11:28 h	16
13.10	50km	8th Cuyamaca-Laguna 50k Trail Race	5:48:01 h	10
29.09	100mi	16th Angeles Crest 100 Mile	25:57:18 h	15
08.09	50km	10th Bulldog 50k Ultra Run	6:01:40 h	34
18.08	100mi	19th Leadville Trail 100 Mile	22:43:44 h	16
03.06	33mi	5th Holcomb Valley 33 Mile	7:12:00 h	41
19.05	50mi	8th Bishop High Sierra Ultramarathons 50 Miles	10:57:39 h	24
05.05	100km	6th Miwok 100k Trail race	12:46:24 h	72
24.02	100km	5th Catalina 100K Trail Run	12:12:54 h	19
03.02	100mi	9th Rocky Raccoon 100 Mile Trail Run	19:15:38 h	13
13.01	50mi	21st Avalon Benefit 50-Mile Run	8:21:24 h	26
2000
10.12	50km	14th OTHTC High Desert 50K Ultra	4:35:58 h	34
14.10	50km	7th Cuyamaca-Laguna 50k Trail Race	6:01:08 h	25
16.09	100mi	1st Rio Del Lago 100 Mile	22:53:16 h	3 🥉
19.08	100mi	18th Leadville Trail 100 Mile	26:14:32 h	45
27.07	135mi	14th Badwater Ultramarathon	33:49:59 h	8
04.06	33mi	4th Holcomb Valley 33 Mile	6:18:54 h	32
13.05	50mi	17th Quicksilver 50 Mile Endurance Run	9:09:46 h	6
25.03	50km	17th San Juan Trail 50 km	6:01:14 h	29
26.02	100km	4th Catalina 100K Trail Run	12:29:29 h	31
05.02	100mi	8th Rocky Raccoon 100 Mile Trail Run	19:41:00 h	14
29.01	50km	3rd San Gabriel Mountain 50K	5:43:18 h	24
08.01	50mi	20th Avalon Benefit 50-Mile Run	8:39:20 h	20
1999
05.12	50km	13th OTHTC High Desert 50K Ultra	4:41:37 h	27
20.11	50mi	16th San Juan Trail 50 Mile	9:53:48 h	14
09.10	50km	6th Cuyamaca-Laguna 50k Trail Race	5:50:34 h	24
25.09	100mi	14th Angeles Crest 100 Mile	23:18:09 h	10
21.08	100mi	17th Leadville Trail 100 Mile	24:12:14 h	29
31.07	100mi	3rd Mount Rushmore Trail 100 Mile Run	27:31:47 h	3 🥉
06.06	33mi	3rd Holcomb Valley 33 Mile	6:21:02 h	37
15.05	50mi	6th Bishop High Sierra Ultramarathons 50 Miles	9:40:40 h	8
27.02	100km	3rd Catalina 100K Trail Run	11:25:58 h	17
13.02	50km	16th San Juan Trail 50 km	5:25:57 h	20
30.01	50km	2nd San Gabriel Mountain 50K	5:59:40 h	23
1998
08.11	50mi	PCT 50 Mile Run	10:05:50 h	6
26.09	100mi	13th Angeles Crest 100 Mile	25:38:51 h	23
12.09	100mi	19th Wasatch Front 100 Mile	26:28:00 h	27
22.08	100mi	16th Leadville Trail 100 Mile	22:23:13 h	19
27.06	100mi	25th Western States 100 Mile Endurance Run	23:40:02 h	54
06.06	100mi	20th Old Dominion 100 Mile Endurance Run	21:29:24 h	19
16.05	50mi	6th Lost Boys 50 Mile Trail Run	10:43:41 h	31
04.04	50mi	4th Umstead Endurance Run 50 Miles	9:13:00 h	6
21.02	100km	2nd Catalina 100K Trail Run	12:19:05 h	24
15.02	50mi	1st Smuggler's 50 Miles	10:06:00 h	13
08.02	100mi	6th Rocky Raccoon 100 Mile Trail Run	19:46:35 h	13
31.01	50km	1st San Gabriel Mountain 50K	5:44:07 h	17
10.01	50mi	18th Avalon Benefit 50-Mile Run	8:30:09 h	20
1997
07.12	50km	11th OTHTC High Desert 50K Ultra	5:46:35 h	93
29.11	35mi	6th Santa Barbara Nine Trails 35 Mile Endurance Run	8:50:48 h	19
27.09	100mi	12th Angeles Crest 100 Mile	23:30:43 h	17
13.09	50km	Mule Run 50K	5:37:39 h	12
06.09	50km	6th Bulldog 50k Ultra Run	5:18:18 h	23
31.08	50mi	3rd Run On The Sly 50 Mile	8:48:35 h	12
16.08	100mi	15th Leadville Trail 100 Mile	22:50:52 h	15
26.07	100mi	1st Mount Rushmore Trail 100 Mile Run	27:50:51 h	3 🥉
28.06	100mi	24th Western States 100 Mile Endurance Run	22:53:18 h	60
17.05	50mi	4th Bishop High Sierra Ultramarathons 50 Miles	10:04:48 h	24
05.04	50mi	18th American River 50 Mile Endurance Run	8:26:00 h	112
11.01	50mi	17th Avalon Benefit 50-Mile Run	8:40:53 h	45
1996
05.10	50km	3rd Cuyamaca-Laguna 50k Trail Race	6:17:19 h	29
28.09	100mi	11th Angeles Crest 100 Mile	25:37:25 h	23
08.09	50km	2nd Baldy Peaks 50K	7:46:04 h	23
24.08	100mi	14th Leadville Trail 100 Mile	23:51:08 h	16
20.07	100mi	8th Vermont 100 Mile Endurance Race	20:04:16 h	24
06.04	50mi	17th American River 50 Mile Endurance Run	8:42:53 h	114
24.03	50km	13th San Juan Trail 50 km	5:43:38 h	36
24.02	100mi	1st Pueblo Nuevo 100 Mile Run	22:57:00 h	6
03.02	100mi	4th Rocky Raccoon 100 Mile Trail Run	22:20:10 h	13
06.01	50mi	16th Avalon Benefit 50-Mile Run	9:15:00 h	34
1995
10.12	50km	9th OTHTC High Desert 50K Ultra	4:30:43 h	17
12.11	50mi	12th San Juan Trail 50 Mile	10:39:54 h	25
30.09	100mi	10th Angeles Crest 100 Mile	25:32:46 h	25
16.09	50mi	17th Pacific Crest Trail Fifty - 50 mile	9:36:52 h	15
22.07	100mi	7th Vermont 100 Mile Endurance Race	20:43:15 h	30
24.06	100mi	22nd Western States 100 Mile Endurance Run	25:09:28 h	47
13.05	50mi	12th Quicksilver 50 Mile Endurance Run	9:33:37 h	27
19.03	50km	12th San Juan Trail 50 km	5:47:00 h	31
04.02	100mi	3rd Rocky Raccoon 100 Mile Trail Run	21:04:34 h	7
1994
11.12	50km	8th OTHTC High Desert 50K Ultra	6:46:16 h	83
29.10	50mi	11th San Juan Trail 50 Mile	10:00:29 h	25
22.10	50km	1st Cuyamaca-Laguna 50k Trail Race	5:21:25 h	10
24.09	100mi	9th Angeles Crest 100 Mile	26:15:33 h	19
10.09	50mi	16th Pacific Crest Trail Fifty	9:48:26 h	14
20.08	50km	1st Baldy Peaks 50K	8:40:09 h	34
07.05	50mi	1st Bishop High Sierra Ultramarathons 50 Miles	9:54:01 h	20
16.04	100km	9th Ruth Anderson Ultra 100km	11:03:25 h	14
02.04	50mi	15th American River 50 Mile Endurance Run	9:18:28 h	230
08.01	50mi	14th Avalon Benefit 50-Mile Run	9:29:38 h	51
1993
25.09	100mi	8th Angeles Crest 100 Mile	29:41:06 h	38
11.09	50km	2nd Bulldog 50k Ultra Run	5:38:55 h	52
06.02	50mi	15th Pacific Crest Trail Fifty	10:03:43 h	18
1989
12.02	50mi	11th Pacific Crest Trail Fifty	10:57:28 h	64

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	27/7/2000	14th Badwater Ultramarathon	217,26	×2
✓ 2	22/8/2009	27th Leadville Trail 100 Mile	160,93	×2
✓ 3	17/9/2005	19th Angeles Crest 100 Mile	160,93	×2
✓ 4	20/8/2005	23rd Leadville Trail 100 Mile	160,93	×2
✓ 5	18/9/2004	18th Angeles Crest 100 Mile	160,93	×2
✓ 6	21/8/2004	22nd Leadville Trail 100 Mile	160,93	×2
✓ 7	26/6/2004	31th Western States 100 Mile Endurance Run	160,93	×2
✓ 8	8/11/2003	1st Javelina Jundred 100 Mile	160,93	×2
✓ 9	6/9/2003	24th Wasatch Front 100 Mile	160,93	×2
✓ 10	16/8/2003	21st Leadville Trail 100 Mile	160,93	×2
✓ 11	17/8/2002	20th Leadville Trail 100 Mile	160,93	×2
✓ 12	29/6/2002	29th Western States 100 Mile Endurance Run	160,93	×2
✓ 13	29/9/2001	16th Angeles Crest 100 Mile	160,93	×2
✓ 14	18/8/2001	19th Leadville Trail 100 Mile	160,93	×2
✓ 15	3/2/2001	9th Rocky Raccoon 100 Mile Trail Run	160,93	×2
✓ 16	16/9/2000	1st Rio Del Lago 100 Mile	160,93	×2
✓ 17	19/8/2000	18th Leadville Trail 100 Mile	160,93	×2
✓ 18	5/2/2000	8th Rocky Raccoon 100 Mile Trail Run	160,93	×2
✓ 19	25/9/1999	14th Angeles Crest 100 Mile	160,93	×2
✓ 20	21/8/1999	17th Leadville Trail 100 Mile	160,93	×2
✓ 21	31/7/1999	3rd Mount Rushmore Trail 100 Mile Run	160,93	×2
✓ 22	26/9/1998	13th Angeles Crest 100 Mile	160,93	×2
✓ 23	12/9/1998	19th Wasatch Front 100 Mile	160,93	×2
✓ 24	22/8/1998	16th Leadville Trail 100 Mile	160,93	×2
✓ 25	27/6/1998	25th Western States 100 Mile Endurance Run	160,93	×2
✓ 26	6/6/1998	20th Old Dominion 100 Mile Endurance Run	160,93	×2
✓ 27	8/2/1998	6th Rocky Raccoon 100 Mile Trail Run	160,93	×2
✓ 28	27/9/1997	12th Angeles Crest 100 Mile	160,93	×2
✓ 29	16/8/1997	15th Leadville Trail 100 Mile	160,93	×2
✓ 30	26/7/1997	1st Mount Rushmore Trail 100 Mile Run	160,93	×2
✓ 31	28/6/1997	24th Western States 100 Mile Endurance Run	160,93	×2
✓ 32	28/9/1996	11th Angeles Crest 100 Mile	160,93	×2
✓ 33	24/8/1996	14th Leadville Trail 100 Mile	160,93	×2
✓ 34	20/7/1996	8th Vermont 100 Mile Endurance Race	160,93	×2
✓ 35	24/2/1996	1st Pueblo Nuevo 100 Mile Run	160,93	×2
✓ 36	3/2/1996	4th Rocky Raccoon 100 Mile Trail Run	160,93	×2
✓ 37	30/9/1995	10th Angeles Crest 100 Mile	160,93	×2
✓ 38	22/7/1995	7th Vermont 100 Mile Endurance Race	160,93	×2
✓ 39	24/6/1995	22nd Western States 100 Mile Endurance Run	160,93	×2
✓ 40	4/2/1995	3rd Rocky Raccoon 100 Mile Trail Run	160,93	×2
✓ 41	24/9/1994	9th Angeles Crest 100 Mile	160,93	×2
✓ 42	25/9/1993	8th Angeles Crest 100 Mile	160,93	×2
✓ 43	3/5/2003	8th Miwok 100k Trail race	100,00	×1
✓ 44	4/5/2002	7th Miwok 100k Trail race	100,00	×1
✓ 45	5/5/2001	6th Miwok 100k Trail race	100,00	×1
✓ 46	24/2/2001	5th Catalina 100K Trail Run	100,00	×1
✓ 47	26/2/2000	4th Catalina 100K Trail Run	100,00	×1
✓ 48	27/2/1999	3rd Catalina 100K Trail Run	100,00	×1
✓ 49	21/2/1998	2nd Catalina 100K Trail Run	100,00	×1
✓ 50	16/4/1994	9th Ruth Anderson Ultra 100km	100,00	×1
✓ 51	16/6/2003	78th Comrades Marathon - Down Run (RSA)	89,00	×1
✓ 52	18/4/2009	17th Leona Divide 50 Mile Run	80,47	×1
✓ 53	15/5/2004	11th Bishop High Sierra Ultramarathons 50 Miles	80,47	×1
✓ 54	17/4/2004	13th Leona Divide 50 Mile Run	80,47	×1
✓ 55	10/1/2004	24th Avalon Benefit 50-Mile Run	80,47	×1
✓ 56	17/5/2003	10th Bishop High Sierra Ultramarathons 50 Miles	80,47	×1
✓ 57	26/4/2003	12th Leona Divide 50 Mile Run	80,47	×1
✓ 58	5/4/2003	24th American River 50 Mile Endurance Run	80,47	×1
✓ 59	19/5/2001	8th Bishop High Sierra Ultramarathons 50 Miles	80,47	×1
✓ 60	13/1/2001	21st Avalon Benefit 50-Mile Run	80,47	×1
✓ 61	13/5/2000	17th Quicksilver 50 Mile Endurance Run	80,47	×1
✓ 62	8/1/2000	20th Avalon Benefit 50-Mile Run	80,47	×1
✓ 63	20/11/1999	16th San Juan Trail 50 Mile	80,47	×1
✓ 64	15/5/1999	6th Bishop High Sierra Ultramarathons 50 Miles	80,47	×1
✓ 65	8/11/1998	PCT 50 Mile Run	80,47	×1
✓ 66	16/5/1998	6th Lost Boys 50 Mile Trail Run	80,47	×1
✓ 67	4/4/1998	4th Umstead Endurance Run 50 Miles	80,47	×1
✓ 68	15/2/1998	1st Smuggler's 50 Miles	80,47	×1
✓ 69	10/1/1998	18th Avalon Benefit 50-Mile Run	80,47	×1
✓ 70	31/8/1997	3rd Run On The Sly 50 Mile	80,47	×1
✓ 71	17/5/1997	4th Bishop High Sierra Ultramarathons 50 Miles	80,47	×1
✓ 72	5/4/1997	18th American River 50 Mile Endurance Run	80,47	×1
✓ 73	11/1/1997	17th Avalon Benefit 50-Mile Run	80,47	×1
✓ 74	6/4/1996	17th American River 50 Mile Endurance Run	80,47	×1
✓ 75	6/1/1996	16th Avalon Benefit 50-Mile Run	80,47	×1
✓ 76	12/11/1995	12th San Juan Trail 50 Mile	80,47	×1
✓ 77	16/9/1995	17th Pacific Crest Trail Fifty - 50 mile	80,47	×1
✓ 78	13/5/1995	12th Quicksilver 50 Mile Endurance Run	80,47	×1
✓ 79	29/10/1994	11th San Juan Trail 50 Mile	80,47	×1
✓ 80	10/9/1994	16th Pacific Crest Trail Fifty	80,47	×1
81	7/5/1994	1st Bishop High Sierra Ultramarathons 50 Miles	80,47	×1
82	2/4/1994	15th American River 50 Mile Endurance Run	80,47	×1
83	8/1/1994	14th Avalon Benefit 50-Mile Run	80,47	×1
84	6/2/1993	15th Pacific Crest Trail Fifty	80,47	×1
85	12/2/1989	11th Pacific Crest Trail Fifty	80,47	×1
86	30/11/2002	10th Santa Barbara Nine Trails 35 Mile Endurance Run	56,33	—
87	24/11/2001	9th Santa Barbara Nine Trails 35 Mile Endurance Run	56,33	—
88	29/11/1997	6th Santa Barbara Nine Trails 35 Mile Endurance Run	56,33	—
89	3/6/2001	5th Holcomb Valley 33 Mile	53,11	—
90	4/6/2000	4th Holcomb Valley 33 Mile	53,11	—
91	6/6/1999	3rd Holcomb Valley 33 Mile	53,11	—
92	10/11/2012	2nd Bootlegger 50K	50,00	—
93	5/11/2011	1st Bootlegger 50K	50,00	—
94	25/9/2010	4th Noble Canyon 50k	50,00	—
95	29/9/2007	1st Noble Canyon 50k	50,00	—
96	3/12/2006	20th OTHTC High Desert 50K Ultra	50,00	—
97	4/12/2005	19th OTHTC High Desert 50K Ultra	50,00	—
98	26/2/2005	2nd Lake Hodges Trail Fest 50K	50,00	—
99	24/7/2004	9th Baldy Peaks 50K	50,00	—
100	3/4/2004	6th San Gabriel Mountain 50K	50,00	—
101	27/3/2004	21th San Juan Trail 50 km	50,00	—
102	13/3/2004	1st Lake Hodges Trail Fest 50K	50,00	—
103	7/12/2003	17th OTHTC High Desert 50K Ultra	50,00	—
104	11/10/2003	10th Cuyamaca-Laguna 50k Trail Race	50,00	—
105	19/4/2003	17th Ruth Anderson Ultra 50km	50,00	—
106	29/3/2003	20th San Juan Trail 50 km	50,00	—
107	8/12/2002	16th OTHTC High Desert 50K Ultra	50,00	—
108	9/12/2001	15th OTHTC High Desert 50K Ultra	50,00	—
109	13/10/2001	8th Cuyamaca-Laguna 50k Trail Race	50,00	—
110	8/9/2001	10th Bulldog 50k Ultra Run	50,00	—
111	10/12/2000	14th OTHTC High Desert 50K Ultra	50,00	—
112	14/10/2000	7th Cuyamaca-Laguna 50k Trail Race	50,00	—
113	25/3/2000	17th San Juan Trail 50 km	50,00	—
114	29/1/2000	3rd San Gabriel Mountain 50K	50,00	—
115	5/12/1999	13th OTHTC High Desert 50K Ultra	50,00	—
116	9/10/1999	6th Cuyamaca-Laguna 50k Trail Race	50,00	—
117	13/2/1999	16th San Juan Trail 50 km	50,00	—
118	30/1/1999	2nd San Gabriel Mountain 50K	50,00	—
119	31/1/1998	1st San Gabriel Mountain 50K	50,00	—
120	7/12/1997	11th OTHTC High Desert 50K Ultra	50,00	—
121	13/9/1997	Mule Run 50K	50,00	—
122	6/9/1997	6th Bulldog 50k Ultra Run	50,00	—
123	5/10/1996	3rd Cuyamaca-Laguna 50k Trail Race	50,00	—
124	8/9/1996	2nd Baldy Peaks 50K	50,00	—
125	24/3/1996	13th San Juan Trail 50 km	50,00	—
126	10/12/1995	9th OTHTC High Desert 50K Ultra	50,00	—
127	19/3/1995	12th San Juan Trail 50 km	50,00	—
128	11/12/1994	8th OTHTC High Desert 50K Ultra	50,00	—
129	22/10/1994	1st Cuyamaca-Laguna 50k Trail Race	50,00	—
130	20/8/1994	1st Baldy Peaks 50K	50,00	—
131	11/9/1993	2nd Bulldog 50k Ultra Run	50,00	—