Kenneth Gregorich

Born : 1958 Cat. M65 Ultrarunner since 1995

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

17,9%

Rank quotient ?This runner's calculation uses 116 eligible race(s): Σ(rank − 1) = 4 596; Σ finishers = 25 652. 4 596 / 25 652 × 100 = 17.92%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed116

Km — ultra races10 027 km

> 100 km21

> 160 km21

Longest race160,9 km

18th San Diego 100 Mile Endurance Run — 7/6/2019

Km per year (ultra races)

2022

2023

2024

2025

2026

Race types (share of distance)

Road3,3%

Trail96,7%

Wins & podiums (ultra)

🏆 Win4

🏆 Win M4

🏅 Top 314

🏅 Top 3 M14

Longest winning streak1

Current streak0

Records

50 km3h29'39 100 km8h45'20 50 mi6h43'07 100 mi20h26'50

HISTORY

117 race(s)

Date		Race	Perf.	Rk
2020
07.03	50km	31st Way Too Cool 50K Endurance Run	6:31:23 h	342
2019
07.06	100mi	18th San Diego 100 Mile Endurance Run	25:55:32 h	41
13.04	50mi	11th Lake Sonoma 50 Mile Race	10:28:00 h	110
23.03	35mi	21st Santa Barbara Nine Trails 35 Mile Endurance Run	9:15:14 h	94
02.03	50km	30th Way Too Cool 50K Endurance Run	5:57:54 h	211
2018
08.06	100mi	17th San Diego 100 Mile Endurance Run	29:45:42 h	90
14.04	50mi	10th Lake Sonoma 50 Mile Race	11:48:53 h	185
2017
24.06	100mi	44th Western States 100 Mile Endurance Run	28:44:12 h	182
15.04	50mi	9th Lake Sonoma 50 Mile Race	11:59:04 h	195
2016
16.07	100mi	15th Tahoe Rim Trail 100M Endurance Run	31:24:00 h	91
07.05	100km	21st Miwok 100k Trail Race	13:29:02 h	143
09.04	50mi	8th Lake Sonoma 50 Mile Race	11:04:03 h	171
2015
06.06	100mi	14th San Diego 100 Mile Endurance Run	27:36:23 h	78
11.04	50mi	7th Lake Sonoma 50 Mile Race	10:32:31 h	146
2014
07.06	100mi	13th San Diego 100 Mile Endurance Run	26:37:03 h	53
12.04	50mi	6th Lake Sonoma 50 Mile Race	10:43:32 h	176
2013
11.08	50km	32nd Skyline 50k Endurance Run	5:27:20 h	72
08.06	100mi	12th San Diego 100 Mile Endurance Run	23:34:37 h	17
13.04	50mi	5th Lake Sonoma 50 Mile Race	9:25:09 h	71
2012
12.08	50km	31st Skyline 50k Endurance Run	4:58:29 h	38
09.06	100mi	11th San Diego 100 Mile Endurance Run	24:33:17 h	31
24.03	50km	5th Terrapin Mountain 50 km Race	5:37:36 h	46
11.02	50km	17th Holiday Lake 50K++	5:09:32 h	84
2011
07.08	50km	30th Skyline 50k Endurance Run	5:15:20 h	35
25.06	100mi	38th Western States 100 Mile Endurance Run	22:22:22 h	77
23.04	50km	11th Promise Land 50K++	6:17:10 h	42
09.04	50mi	32nd American River 50 Mile Endurance Run	9:14:03 h	158
26.03	50km	4th Terrapin Mountain 50 km Race	5:27:14 h	19
2010
26.06	100mi	37th Western States 100 Mile Endurance Run	22:43:49 h	77
24.04	50km	10th Promise Land 50K++	5:51:42 h	24
27.03	50mi	3rd Lake Sonoma 50 Mile Race	9:13:27 h	20
2009
02.08	50km	28th Skyline 50k Endurance Run	5:04:42 h	33
28.03	50mi	2nd Lake Sonoma 50 Mile Race	9:44:18 h	24
14.02	50km	1st Las Trampas	7:28:00 h	3 🥉
2008
20.06	100mi	17th Bighorn Mountain Wild & Scenic 100mi Trail Run	26:58:14 h	29
18.05	50km	21st Ohlone 50K Wilderness Run	6:43:29 h	28
03.05	100km	13th Miwok 100k Trail race	11:22:37 h	57
26.04	50km	8th Promise Land 50K++	6:14:12 h	34
12.04	50mi	1st Lake Sonoma 50 Mile Race	9:55:11 h	11
05.04	50mi	29th American River 50 Mile Endurance Run	8:33:07 h	87
2007
23.06	100mi	34th Western States 100 Mile Endurance Run	21:22:10 h	30
05.05	100km	12th Miwok 100k Trail race	10:19:41 h	20
14.04	50mi	28th American River 50 Mile Endurance Run	7:36:59 h	19
2006
19.08	100km	5th Where's Waldo 100K Ultramarathon	13:05:31 h	10
24.06	100mi	33th Western States 100 Mile Endurance Run	23:09:58 h	32
06.05	100km	11th Miwok 100k Trail race	10:54:35 h	44
01.04	50mi	27th American River 50 Mile Endurance Run	8:27:18 h	58
2005
27.08	31.5mi	8th Tamalpa Headlands 50K	4:54:18 h	26
30.04	100km	10th Miwok 100k Trail race	10:18:49 h	27
02.04	50mi	26th American River 50 Mile Endurance Run	7:46:25 h	34
2004
26.06	100mi	31th Western States 100 Mile Endurance Run	20:43:34 h	28
01.05	100km	9th Miwok 100k Trail race	10:15:44 h	15
03.04	50mi	25th American River 50 Mile Endurance Run	7:35:21 h	19
13.03	50km	15th Way Too Cool 50K Endurance Run	4:24:17 h	29
2003
23.08	31.5mi	6th Tamalpa Headlands 50K	4:40:26 h	22
20.06	100mi	12th Bighorn Mountain Wild & Scenic 100mi Trail Run	23:18:37 h	2 🥈
03.05	100km	8th Miwok 100k Trail race	10:05:50 h	12
05.04	50mi	24th American River 50 Mile Endurance Run	7:19:00 h	23
11.01	52km	Epiphany Ultras - The Popular But Wussy Metric	5:12:00 h	3 🥉
2002
12.10	50mi	20th Dick Collins Firetrails 50 Mile	8:18:10 h	15
14.09	53.2mi	16th Sierra Nevada Endurance 53 Mile Run	8:27:33 h	1 🏆
24.08	31.5mi	5th Tamalpa Headlands 50K	4:35:58 h	24
04.05	100km	7th Miwok 100k Trail race	10:13:28 h	15
06.04	50mi	23rd American River 50 Mile Endurance Run	7:44:58 h	33
09.03	50km	13th Way Too Cool 50K Endurance Run	4:24:41 h	39
2001
29.09	100mi	16th Angeles Crest 100 Mile	23:17:06 h	9
25.08	31.5mi	4th Tamalpa Headlands 50K	4:37:35 h	10
05.08	50km	20th Skyline 50k Endurance Run	4:17:11 h	9
23.06	100mi	28th Western States 100 Mile Endurance Run	22:42:30 h	54
05.05	100km	6th Miwok 100k Trail race	10:27:30 h	14
07.04	50mi	22nd American River 50 Mile Endurance Run	7:30:57 h	21
10.03	50km	12th Way Too Cool 50K Endurance Run	4:22:26 h	31
09.01	50mi	Epiphany Ultras - The Real Deal	8:03:57 h	1 🏆
2000
14.10	50mi	18th Dick Collins Firetrails 50 Mile	8:23:54 h	7
24.06	100mi	27th Western States 100 Mile Endurance Run	23:20:11 h	41
06.05	100km	5th Miwok 100k Trail race	10:20:39 h	17
01.04	50mi	21st American River 50 Mile Endurance Run	8:03:13 h	33
11.03	50km	11th Way Too Cool 50K Endurance Run	4:21:00 h	21
11.01	49mi	Epiphany Ultras - The Real Deal	7:22:01 h	1 🏆
1999
13.11	50mi	4th Helen Klein Ultra Classic 50mi	7:14:27 h	17
23.10	52.4mi	13th Sierra Nevada Endurance 52 Mile Run	9:02:30 h	10
28.08	31.5mi	2nd Tamalpa Headlands 50K	4:52:31 h	11
07.08	50km	18th Skyline 50k Endurance Run	4:11:17 h	4
26.06	100mi	26th Western States 100 Mile Endurance Run	21:56:40 h	27
16.05	50km	12th Ohlone 50K Wilderness Run	5:05:51 h	6
01.05	100km	4th Miwok 100k Trail race	10:18:13 h	10
10.04	50mi	20th American River 50 Mile Endurance Run	7:48:49 h	53
13.03	50km	10th Way Too Cool 50K Endurance Run	4:17:17 h	24
13.02	50km	16th San Juan Trail 50 km	4:43:37 h	9
09.01	48mi	Epiphany Ultras - The Real Deal	7:12:00 h	3 🥉
1998
28.11	28mi	14th Quad Dipsea Trail Run	5:06:44 h	21
24.10	52.4mi	12th Sierra Nevada Endurance 52 Mile Run	9:05:55 h	15
10.10	50mi	16th Dick Collins Firetrails 50 Mile	7:44:58 h	3 🥉
27.06	100mi	25th Western States 100 Mile Endurance Run	22:35:57 h	31
16.05	50km	13th Silver State 50 km	6:58:42 h	8
09.05	50km	15th Quicksilver 50 km Endurance Run	3:58:54 h	3 🥉
19.04	100km	13th Ruth Anderson Ultra 100km	9:07:55 h	6
04.04	50mi	19th American River 50 Mile Endurance Run	7:07:08 h	26
12.01	47mi	Epiphany Ultras - The Real Deal	7:37:00 h	3 🥉
1997
15.11	50mi	2nd Helen Klein Ultra Classic 50mi	6:49:50 h	11
25.10	52.4mi	11th Sierra Nevada Endurance 52 Mile Run	8:01:18 h	8
20.10	50mi	15th Dick Collins Firetrails 50 Mile	7:25:37 h	4
13.09	50mi	3rd Cameron Park 50 Mile	6:43:07 h	2 🥈
06.09	50km	3rd Point Reyes 50K	4:20:21 h	3 🥉
02.08	50km	16th Skyline 50k Endurance Run	3:58:13 h	4
28.06	100mi	24th Western States 100 Mile Endurance Run	20:26:50 h	17
17.05	50km	12th Silver State 50 km	5:45:54 h	4
10.05	50km	14th Quicksilver 50 km Endurance Run	4:05:19 h	4
19.04	50mi	12th Ruth Anderson Ultra 100km - 50mi Split	6:43:37 h	5
19.04	100km	12th Ruth Anderson Ultra 100km	8:45:20 h	6
05.04	50mi	18th American River 50 Mile Endurance Run	7:20:18 h	41
18.01	50km	19th Jed Smith Ultra Classic - 50 km Race	3:29:39 h	3 🥉
1996
30.11	28mi	12th Quad Dipsea Trail Run	4:55:48 h	22
12.10	50mi	14th Dick Collins Firetrails 50 Mile	7:07:40 h	1 🏆
24.08	50km	2nd Point Reyes 50K	4:17:37 h	6
03.08	50km	15th Skyline 50k Endurance Run	4:01:18 h	4
1995
02.09	50km	1st Point Reyes 50K	4:33:28 h	8

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	7/6/2019	18th San Diego 100 Mile Endurance Run	160,93	×2
✓ 2	8/6/2018	17th San Diego 100 Mile Endurance Run	160,93	×2
✓ 3	24/6/2017	44th Western States 100 Mile Endurance Run	160,93	×2
✓ 4	16/7/2016	15th Tahoe Rim Trail 100M Endurance Run	160,93	×2
✓ 5	6/6/2015	14th San Diego 100 Mile Endurance Run	160,93	×2
✓ 6	7/6/2014	13th San Diego 100 Mile Endurance Run	160,93	×2
✓ 7	8/6/2013	12th San Diego 100 Mile Endurance Run	160,93	×2
✓ 8	9/6/2012	11th San Diego 100 Mile Endurance Run	160,93	×2
✓ 9	25/6/2011	38th Western States 100 Mile Endurance Run	160,93	×2
✓ 10	26/6/2010	37th Western States 100 Mile Endurance Run	160,93	×2
✓ 11	20/6/2008	17th Bighorn Mountain Wild & Scenic 100mi Trail Run	160,93	×2
✓ 12	23/6/2007	34th Western States 100 Mile Endurance Run	160,93	×2
✓ 13	24/6/2006	33th Western States 100 Mile Endurance Run	160,93	×2
✓ 14	26/6/2004	31th Western States 100 Mile Endurance Run	160,93	×2
✓ 15	20/6/2003	12th Bighorn Mountain Wild & Scenic 100mi Trail Run	160,93	×2
✓ 16	29/9/2001	16th Angeles Crest 100 Mile	160,93	×2
✓ 17	23/6/2001	28th Western States 100 Mile Endurance Run	160,93	×2
✓ 18	24/6/2000	27th Western States 100 Mile Endurance Run	160,93	×2
✓ 19	26/6/1999	26th Western States 100 Mile Endurance Run	160,93	×2
✓ 20	27/6/1998	25th Western States 100 Mile Endurance Run	160,93	×2
✓ 21	28/6/1997	24th Western States 100 Mile Endurance Run	160,93	×2
✓ 22	7/5/2016	21st Miwok 100k Trail Race	100,00	×1
✓ 23	3/5/2008	13th Miwok 100k Trail race	100,00	×1
✓ 24	5/5/2007	12th Miwok 100k Trail race	100,00	×1
✓ 25	19/8/2006	5th Where's Waldo 100K Ultramarathon	100,00	×1
✓ 26	6/5/2006	11th Miwok 100k Trail race	100,00	×1
✓ 27	30/4/2005	10th Miwok 100k Trail race	100,00	×1
✓ 28	1/5/2004	9th Miwok 100k Trail race	100,00	×1
✓ 29	3/5/2003	8th Miwok 100k Trail race	100,00	×1
✓ 30	4/5/2002	7th Miwok 100k Trail race	100,00	×1
✓ 31	5/5/2001	6th Miwok 100k Trail race	100,00	×1
✓ 32	6/5/2000	5th Miwok 100k Trail race	100,00	×1
✓ 33	1/5/1999	4th Miwok 100k Trail race	100,00	×1
✓ 34	19/4/1998	13th Ruth Anderson Ultra 100km	100,00	×1
✓ 35	19/4/1997	12th Ruth Anderson Ultra 100km	100,00	×1
✓ 36	14/9/2002	16th Sierra Nevada Endurance 53 Mile Run	85,62	×1
✓ 37	23/10/1999	13th Sierra Nevada Endurance 52 Mile Run	84,33	×1
✓ 38	24/10/1998	12th Sierra Nevada Endurance 52 Mile Run	84,33	×1
✓ 39	25/10/1997	11th Sierra Nevada Endurance 52 Mile Run	84,33	×1
✓ 40	13/4/2019	11th Lake Sonoma 50 Mile Race	80,47	×1
✓ 41	14/4/2018	10th Lake Sonoma 50 Mile Race	80,47	×1
✓ 42	15/4/2017	9th Lake Sonoma 50 Mile Race	80,47	×1
✓ 43	9/4/2016	8th Lake Sonoma 50 Mile Race	80,47	×1
✓ 44	11/4/2015	7th Lake Sonoma 50 Mile Race	80,47	×1
✓ 45	12/4/2014	6th Lake Sonoma 50 Mile Race	80,47	×1
✓ 46	13/4/2013	5th Lake Sonoma 50 Mile Race	80,47	×1
✓ 47	9/4/2011	32nd American River 50 Mile Endurance Run	80,47	×1
✓ 48	27/3/2010	3rd Lake Sonoma 50 Mile Race	80,47	×1
✓ 49	28/3/2009	2nd Lake Sonoma 50 Mile Race	80,47	×1
✓ 50	12/4/2008	1st Lake Sonoma 50 Mile Race	80,47	×1
✓ 51	5/4/2008	29th American River 50 Mile Endurance Run	80,47	×1
✓ 52	14/4/2007	28th American River 50 Mile Endurance Run	80,47	×1
✓ 53	1/4/2006	27th American River 50 Mile Endurance Run	80,47	×1
✓ 54	2/4/2005	26th American River 50 Mile Endurance Run	80,47	×1
✓ 55	3/4/2004	25th American River 50 Mile Endurance Run	80,47	×1
✓ 56	5/4/2003	24th American River 50 Mile Endurance Run	80,47	×1
✓ 57	12/10/2002	20th Dick Collins Firetrails 50 Mile	80,47	×1
✓ 58	6/4/2002	23rd American River 50 Mile Endurance Run	80,47	×1
✓ 59	7/4/2001	22nd American River 50 Mile Endurance Run	80,47	×1
✓ 60	9/1/2001	Epiphany Ultras - The Real Deal	80,47	×1
✓ 61	14/10/2000	18th Dick Collins Firetrails 50 Mile	80,47	×1
✓ 62	1/4/2000	21st American River 50 Mile Endurance Run	80,47	×1
✓ 63	13/11/1999	4th Helen Klein Ultra Classic 50mi	80,47	×1
✓ 64	10/4/1999	20th American River 50 Mile Endurance Run	80,47	×1
✓ 65	10/10/1998	16th Dick Collins Firetrails 50 Mile	80,47	×1
✓ 66	4/4/1998	19th American River 50 Mile Endurance Run	80,47	×1
✓ 67	15/11/1997	2nd Helen Klein Ultra Classic 50mi	80,47	×1
✓ 68	20/10/1997	15th Dick Collins Firetrails 50 Mile	80,47	×1
✓ 69	13/9/1997	3rd Cameron Park 50 Mile	80,47	×1
✓ 70	5/4/1997	18th American River 50 Mile Endurance Run	80,47	×1
✓ 71	12/10/1996	14th Dick Collins Firetrails 50 Mile	80,47	×1
✓ 72	11/1/2000	Epiphany Ultras - The Real Deal	78,86	—
✓ 73	9/1/1999	Epiphany Ultras - The Real Deal	77,25	—
✓ 74	12/1/1998	Epiphany Ultras - The Real Deal	75,64	—
75	23/3/2019	21st Santa Barbara Nine Trails 35 Mile Endurance Run	56,33	—
76	11/1/2003	Epiphany Ultras - The Popular But Wussy Metric	52,00	—
77	27/8/2005	8th Tamalpa Headlands 50K	50,69	—
78	23/8/2003	6th Tamalpa Headlands 50K	50,69	—
79	24/8/2002	5th Tamalpa Headlands 50K	50,69	—
80	25/8/2001	4th Tamalpa Headlands 50K	50,69	—
81	28/8/1999	2nd Tamalpa Headlands 50K	50,69	—
82	7/3/2020	31st Way Too Cool 50K Endurance Run	50,00	—
83	2/3/2019	30th Way Too Cool 50K Endurance Run	50,00	—
84	11/8/2013	32nd Skyline 50k Endurance Run	50,00	—
85	12/8/2012	31st Skyline 50k Endurance Run	50,00	—
86	24/3/2012	5th Terrapin Mountain 50 km Race	50,00	—
87	11/2/2012	17th Holiday Lake 50K++	50,00	—
88	7/8/2011	30th Skyline 50k Endurance Run	50,00	—
89	23/4/2011	11th Promise Land 50K++	50,00	—
90	26/3/2011	4th Terrapin Mountain 50 km Race	50,00	—
91	24/4/2010	10th Promise Land 50K++	50,00	—
92	2/8/2009	28th Skyline 50k Endurance Run	50,00	—
93	14/2/2009	1st Las Trampas	50,00	—
94	18/5/2008	21st Ohlone 50K Wilderness Run	50,00	—
95	26/4/2008	8th Promise Land 50K++	50,00	—
96	13/3/2004	15th Way Too Cool 50K Endurance Run	50,00	—
97	9/3/2002	13th Way Too Cool 50K Endurance Run	50,00	—
98	5/8/2001	20th Skyline 50k Endurance Run	50,00	—
99	10/3/2001	12th Way Too Cool 50K Endurance Run	50,00	—
100	11/3/2000	11th Way Too Cool 50K Endurance Run	50,00	—
101	7/8/1999	18th Skyline 50k Endurance Run	50,00	—
102	16/5/1999	12th Ohlone 50K Wilderness Run	50,00	—
103	13/3/1999	10th Way Too Cool 50K Endurance Run	50,00	—
104	13/2/1999	16th San Juan Trail 50 km	50,00	—
105	16/5/1998	13th Silver State 50 km	50,00	—
106	9/5/1998	15th Quicksilver 50 km Endurance Run	50,00	—
107	6/9/1997	3rd Point Reyes 50K	50,00	—
108	2/8/1997	16th Skyline 50k Endurance Run	50,00	—
109	17/5/1997	12th Silver State 50 km	50,00	—
110	10/5/1997	14th Quicksilver 50 km Endurance Run	50,00	—
111	18/1/1997	19th Jed Smith Ultra Classic - 50 km Race	50,00	—
112	24/8/1996	2nd Point Reyes 50K	50,00	—
113	3/8/1996	15th Skyline 50k Endurance Run	50,00	—
114	2/9/1995	1st Point Reyes 50K	50,00	—
115	28/11/1998	14th Quad Dipsea Trail Run	45,06	—
116	30/11/1996	12th Quad Dipsea Trail Run	45,06	—