Ken Crouse

Born : 1955 Cat. M70 Ultrarunner since 1996

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

Vietnam

78,4%

Rank quotient ?This runner's calculation uses 98 eligible race(s): Σ(rank − 1) = 26 133; Σ finishers = 33 341. 26 133 / 33 341 × 100 = 78.38%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed98

Km — ultra races6 202 km

> 100 km3

> 160 km3

Longest race160,9 km

36th Western States 100 Mile Endurance Run — 27/6/2009

Km per year (ultra races)

105

2022

2023

2024

2025

2026

Race types (share of distance)

Trail100,0%

Records

50 km5h53'44 100 km13h46'58 50 mi9h39'37 100 mi28h19'37

HISTORY

98 race(s)

Date		Race	Perf.	Rk
2023
23.09	48km	11. Vietnam Mountain Marathon 50km	14:54:10 h	441
19.08	31.5mi	22nd Tamalpa Headlands 50K	9:45:23 h	247
2022
16.07	55km	21th Tahoe Rim Trail 55km Endurance Run	12:17:42 h	106
05.03	50km	32nd Way Too Cool 50K Endurance Run	8:11:16 h	521
2020
07.03	50km	31st Way Too Cool 50K Endurance Run	7:40:59 h	528
2019
24.08	31.5mi	20th Tamalpa Headlands 50K	8:27:47 h	118
06.04	50mi	40th American River 50 Mile Endurance Run	12:12:31 h	237
02.03	50km	30th Way Too Cool 50K Endurance Run	7:36:40 h	481
2018
25.08	31.5mi	19th Tamalpa Headlands 50K	8:58:59 h	155
07.04	50mi	39th American River 50 Mile Endurance Run	13:33:23 h	340
03.03	50km	29th Way Too Cool 50K Endurance Run	7:51:30 h	522
2017
04.03	50km	28th Way Too Cool 50K Endurance Run	7:39:17 h	587
2016
27.08	31.5mi	17th Tamalpa Headlands 50K	8:47:13 h	217
02.04	50mi	37th American River 50 Mile Endurance Run	12:58:18 h	430
05.03	50km	27th Way Too Cool 50K Endurance Run	7:08:19 h	607
2015
29.08	31.5mi	16th Tamalpa Headlands 50K	8:34:48 h	205
04.04	50mi	36th American River 50 Mile Endurance Run	12:56:23 h	541
07.03	50km	26th Way Too Cool 50K Endurance Run	7:39:06 h	872
2014
23.08	31.5mi	15th Tamalpa Headlands 50K	9:24:09 h	186
05.04	50mi	35th American River 50 Mile Endurance Run	13:32:23 h	796
08.03	50km	25th Way Too Cool 50K Endurance Run	7:46:40 h	923
2013
06.04	50mi	34th American River 50 Mile Endurance Run	11:39:37 h	634
09.03	50km	24th Way Too Cool 50K Endurance Run	6:29:47 h	610
2012
24.11	28mi	28th Quad Dipsea Trail Run	7:46:12 h	176
25.08	31.5mi	13th Tamalpa Headlands 50K	7:55:28 h	157
07.04	50mi	33rd American River 50 Mile Endurance Run	12:51:39 h	675
2011
27.08	31.5mi	12th Tamalpa Headlands 50K	8:30:42 h	152
16.07	50km	10th Tahoe Rim Trail 50km Endurance Runs	10:39:56 h	164
21.05	50km	26th Silver State 50 km	7:38:43 h	44
09.04	50mi	32nd American River 50 Mile Endurance Run	11:54:37 h	512
12.03	50km	22nd Way Too Cool 50K Endurance Run	7:28:51 h	508
2010
10.04	50mi	31st American River 50 Mile Endurance Run	10:56:29 h	403
13.03	50km	21st Way Too Cool 50K Endurance Run	7:37:49 h	398
2009
27.06	100mi	36th Western States 100 Mile Endurance Run	29:44:20 h	227
16.05	50km	24th Silver State 50 km	7:53:52 h	33
28.03	50mi	2nd Lake Sonoma 50 Mile Race	13:17:24 h	108
14.03	50km	20th Way Too Cool 50K Endurance Run	6:47:34 h	351
2008
23.08	31.5mi	11th Tamalpa Headlands 50K	7:56:11 h	54
03.05	100km	13th Miwok 100k Trail race	15:34:21 h	259
05.04	50mi	29th American River 50 Mile Endurance Run	11:11:03 h	344
08.03	50km	19th Way Too Cool 50K Endurance Run	6:48:00 h	354
2007
26.08	31.5mi	10th Tamalpa Headlands 50K	7:44:13 h	111
14.04	50mi	28th American River 50 Mile Endurance Run	10:56:48 h	338
10.03	50km	18th Way Too Cool 50K Endurance Run	6:47:14 h	342
2006
25.11	28mi	22nd Quad Dipsea Trail Run	7:07:58 h	171
26.08	31.5mi	9th Tamalpa Headlands 50K	7:53:20 h	148
01.04	50mi	27th American River 50 Mile Endurance Run	11:59:32 h	382
11.03	50km	17th Way Too Cool 50K Endurance Run	7:43:14 h	356
2005
27.08	31.5mi	8th Tamalpa Headlands 50K	8:12:02 h	159
02.04	50mi	26th American River 50 Mile Endurance Run	11:42:03 h	378
12.03	50km	16th Way Too Cool 50K Endurance Run	7:16:32 h	384
2004
21.08	31.5mi	7th Tamalpa Headlands 50K	7:47:55 h	103
03.04	50mi	25th American River 50 Mile Endurance Run	11:33:31 h	374
13.03	50km	15th Way Too Cool 50K Endurance Run	7:02:02 h	407
2003
28.06	100mi	30th Western States 100 Mile Endurance Run	28:19:37 h	200
07.06	50km	3rd Mount Diablo 50K	7:34:04 h	14
17.05	50km	18th Silver State 50 km	9:19:48 h	58
03.05	100km	8th Miwok 100k Trail race	15:02:00 h	161
05.04	50mi	24th American River 50 Mile Endurance Run	9:39:37 h	207
08.02	50km	2nd Woodside Trail Run 50K	6:39:40 h	40
2002
30.11	28mi	18th Quad Dipsea Trail Run	6:55:51 h	157
12.10	50mi	20th Dick Collins Firetrails 50 Mile	12:17:03 h	107
24.08	31.5mi	5th Tamalpa Headlands 50K	6:41:29 h	140
04.08	50km	21st Skyline 50k Endurance Run	6:48:06 h	163
06.04	50mi	23rd American River 50 Mile Endurance Run	10:07:04 h	221
09.03	50km	13th Way Too Cool 50K Endurance Run	6:04:20 h	299
2001
24.11	28mi	17th Quad Dipsea Trail Run	7:39:38 h	151
25.08	31.5mi	4th Tamalpa Headlands 50K	7:17:44 h	148
05.08	50km	20th Skyline 50k Endurance Run	6:43:24 h	155
07.04	50mi	22nd American River 50 Mile Endurance Run	11:01:00 h	290
10.03	50km	12th Way Too Cool 50K Endurance Run	6:39:47 h	348
2000
25.11	28mi	16th Quad Dipsea Trail Run	7:37:26 h	176
14.10	50mi	18th Dick Collins Firetrails 50 Mile	12:05:52 h	88
26.08	31.5mi	3rd Tamalpa Headlands 50K	7:08:09 h	90
11.03	50km	11th Way Too Cool 50K Endurance Run	7:04:20 h	388
1999
28.08	31.5mi	2nd Tamalpa Headlands 50K	7:37:42 h	111
01.05	100km	4th Miwok 100k Trail race	14:52:45 h	113
10.04	50mi	20th American River 50 Mile Endurance Run	11:08:44 h	440
13.03	50km	10th Way Too Cool 50K Endurance Run	6:27:24 h	334
09.01	48km	Epiphany Ultras - The Popular But Wussy Metric	5:30:00 h	13
1998
28.11	28mi	14th Quad Dipsea Trail Run	7:10:43 h	157
29.08	31.5mi	1st Tamalpa Headlands 50K	6:49:49 h	80
01.08	50km	17th Skyline 50k Endurance Run	6:51:52 h	168
27.06	100mi	25th Western States 100 Mile Endurance Run	29:50:34 h	219
16.05	50km	13th Silver State 50 km	10:12:29 h	57
02.05	100km	3rd Miwok 100k Trail race	13:46:58 h	74
04.04	50mi	19th American River 50 Mile Endurance Run	9:41:49 h	257
14.03	50km	9th Way Too Cool 50K Endurance Run	5:53:44 h	171
1997
15.11	50mi	2nd Helen Klein Ultra Classic 50mi	9:51:16 h	77
20.10	50mi	15th Dick Collins Firetrails 50 Mile	11:00:10 h	64
06.09	50km	3rd Point Reyes 50K	7:09:26 h	144
31.08	50km	3rd Run On The Sly 50 km	7:53:23 h	70
02.08	50km	16th Skyline 50k Endurance Run	6:32:03 h	151
05.04	50mi	18th American River 50 Mile Endurance Run	9:55:41 h	313
15.03	50km	8th Way Too Cool 50K Endurance Run	5:56:56 h	233
06.01	46mi	Epiphany Ultras - The Real Deal	8:50:00 h	8
1996
12.12	50km	7th Sunmart Texas Trails 50 km	6:28:37 h	289
09.03	50km	7th Way Too Cool 50K Endurance Run	6:10:03 h	211

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	27/6/2009	36th Western States 100 Mile Endurance Run	160,93	×3
✓ 2	28/6/2003	30th Western States 100 Mile Endurance Run	160,93	×3
✓ 3	27/6/1998	25th Western States 100 Mile Endurance Run	160,93	×3
✓ 4	3/5/2008	13th Miwok 100k Trail race	100,00	×2
✓ 5	3/5/2003	8th Miwok 100k Trail race	100,00	×2
✓ 6	1/5/1999	4th Miwok 100k Trail race	100,00	×2
✓ 7	2/5/1998	3rd Miwok 100k Trail race	100,00	×2
✓ 8	6/4/2019	40th American River 50 Mile Endurance Run	80,47	×1
✓ 9	7/4/2018	39th American River 50 Mile Endurance Run	80,47	×1
✓ 10	2/4/2016	37th American River 50 Mile Endurance Run	80,47	×1
✓ 11	4/4/2015	36th American River 50 Mile Endurance Run	80,47	×1
✓ 12	5/4/2014	35th American River 50 Mile Endurance Run	80,47	×1
✓ 13	6/4/2013	34th American River 50 Mile Endurance Run	80,47	×1
✓ 14	7/4/2012	33rd American River 50 Mile Endurance Run	80,47	×1
✓ 15	9/4/2011	32nd American River 50 Mile Endurance Run	80,47	×1
✓ 16	10/4/2010	31st American River 50 Mile Endurance Run	80,47	×1
✓ 17	28/3/2009	2nd Lake Sonoma 50 Mile Race	80,47	×1
✓ 18	5/4/2008	29th American River 50 Mile Endurance Run	80,47	×1
✓ 19	14/4/2007	28th American River 50 Mile Endurance Run	80,47	×1
✓ 20	1/4/2006	27th American River 50 Mile Endurance Run	80,47	×1
✓ 21	2/4/2005	26th American River 50 Mile Endurance Run	80,47	×1
✓ 22	3/4/2004	25th American River 50 Mile Endurance Run	80,47	×1
✓ 23	5/4/2003	24th American River 50 Mile Endurance Run	80,47	×1
✓ 24	12/10/2002	20th Dick Collins Firetrails 50 Mile	80,47	×1
✓ 25	6/4/2002	23rd American River 50 Mile Endurance Run	80,47	×1
✓ 26	7/4/2001	22nd American River 50 Mile Endurance Run	80,47	×1
✓ 27	14/10/2000	18th Dick Collins Firetrails 50 Mile	80,47	×1
✓ 28	10/4/1999	20th American River 50 Mile Endurance Run	80,47	×1
✓ 29	4/4/1998	19th American River 50 Mile Endurance Run	80,47	×1
✓ 30	15/11/1997	2nd Helen Klein Ultra Classic 50mi	80,47	×1
✓ 31	20/10/1997	15th Dick Collins Firetrails 50 Mile	80,47	×1
✓ 32	5/4/1997	18th American River 50 Mile Endurance Run	80,47	×1
✓ 33	6/1/1997	Epiphany Ultras - The Real Deal	74,03	×1
✓ 34	16/7/2022	21th Tahoe Rim Trail 55km Endurance Run	55,00	×1
✓ 35	19/8/2023	22nd Tamalpa Headlands 50K	50,69	×1
✓ 36	24/8/2019	20th Tamalpa Headlands 50K	50,69	×1
✓ 37	25/8/2018	19th Tamalpa Headlands 50K	50,69	×1
✓ 38	27/8/2016	17th Tamalpa Headlands 50K	50,69	×1
✓ 39	29/8/2015	16th Tamalpa Headlands 50K	50,69	×1
✓ 40	23/8/2014	15th Tamalpa Headlands 50K	50,69	×1
✓ 41	25/8/2012	13th Tamalpa Headlands 50K	50,69	×1
✓ 42	27/8/2011	12th Tamalpa Headlands 50K	50,69	×1
✓ 43	23/8/2008	11th Tamalpa Headlands 50K	50,69	×1
✓ 44	26/8/2007	10th Tamalpa Headlands 50K	50,69	×1
✓ 45	26/8/2006	9th Tamalpa Headlands 50K	50,69	×1
✓ 46	27/8/2005	8th Tamalpa Headlands 50K	50,69	×1
✓ 47	21/8/2004	7th Tamalpa Headlands 50K	50,69	×1
✓ 48	24/8/2002	5th Tamalpa Headlands 50K	50,69	×1
✓ 49	25/8/2001	4th Tamalpa Headlands 50K	50,69	×1
✓ 50	26/8/2000	3rd Tamalpa Headlands 50K	50,69	×1
51	28/8/1999	2nd Tamalpa Headlands 50K	50,69	×1
52	29/8/1998	1st Tamalpa Headlands 50K	50,69	×1
53	5/3/2022	32nd Way Too Cool 50K Endurance Run	50,00	×1
54	7/3/2020	31st Way Too Cool 50K Endurance Run	50,00	×1
55	2/3/2019	30th Way Too Cool 50K Endurance Run	50,00	×1
56	3/3/2018	29th Way Too Cool 50K Endurance Run	50,00	×1
57	4/3/2017	28th Way Too Cool 50K Endurance Run	50,00	×1
58	5/3/2016	27th Way Too Cool 50K Endurance Run	50,00	×1
59	7/3/2015	26th Way Too Cool 50K Endurance Run	50,00	×1
60	8/3/2014	25th Way Too Cool 50K Endurance Run	50,00	×1
61	9/3/2013	24th Way Too Cool 50K Endurance Run	50,00	×1
62	16/7/2011	10th Tahoe Rim Trail 50km Endurance Runs	50,00	×1
63	21/5/2011	26th Silver State 50 km	50,00	×1
64	12/3/2011	22nd Way Too Cool 50K Endurance Run	50,00	×1
65	13/3/2010	21st Way Too Cool 50K Endurance Run	50,00	×1
66	16/5/2009	24th Silver State 50 km	50,00	×1
67	14/3/2009	20th Way Too Cool 50K Endurance Run	50,00	×1
68	8/3/2008	19th Way Too Cool 50K Endurance Run	50,00	×1
69	10/3/2007	18th Way Too Cool 50K Endurance Run	50,00	×1
70	11/3/2006	17th Way Too Cool 50K Endurance Run	50,00	×1
71	12/3/2005	16th Way Too Cool 50K Endurance Run	50,00	×1
72	13/3/2004	15th Way Too Cool 50K Endurance Run	50,00	×1
73	7/6/2003	3rd Mount Diablo 50K	50,00	×1
74	17/5/2003	18th Silver State 50 km	50,00	×1
75	8/2/2003	2nd Woodside Trail Run 50K	50,00	×1
76	4/8/2002	21st Skyline 50k Endurance Run	50,00	×1
77	9/3/2002	13th Way Too Cool 50K Endurance Run	50,00	×1
78	5/8/2001	20th Skyline 50k Endurance Run	50,00	×1
79	10/3/2001	12th Way Too Cool 50K Endurance Run	50,00	×1
80	11/3/2000	11th Way Too Cool 50K Endurance Run	50,00	×1
81	13/3/1999	10th Way Too Cool 50K Endurance Run	50,00	×1
82	1/8/1998	17th Skyline 50k Endurance Run	50,00	×1
83	16/5/1998	13th Silver State 50 km	50,00	×1
84	14/3/1998	9th Way Too Cool 50K Endurance Run	50,00	×1
85	6/9/1997	3rd Point Reyes 50K	50,00	×1
86	31/8/1997	3rd Run On The Sly 50 km	50,00	×1
87	2/8/1997	16th Skyline 50k Endurance Run	50,00	×1
88	15/3/1997	8th Way Too Cool 50K Endurance Run	50,00	×1
89	12/12/1996	7th Sunmart Texas Trails 50 km	50,00	×1
90	9/3/1996	7th Way Too Cool 50K Endurance Run	50,00	×1
91	23/9/2023	11. Vietnam Mountain Marathon 50km	48,00	—
92	9/1/1999	Epiphany Ultras - The Popular But Wussy Metric	48,00	—
93	24/11/2012	28th Quad Dipsea Trail Run	45,06	—
94	25/11/2006	22nd Quad Dipsea Trail Run	45,06	—
95	30/11/2002	18th Quad Dipsea Trail Run	45,06	—
96	24/11/2001	17th Quad Dipsea Trail Run	45,06	—
97	25/11/2000	16th Quad Dipsea Trail Run	45,06	—
98	28/11/1998	14th Quad Dipsea Trail Run	45,06	—