Stanley Nakashima

Born : 1951 Cat. M75 Ultrarunner since 1981

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 ?

Canada

United States

85,3%

Rank quotient ?This runner's calculation uses 118 eligible race(s): Σ(rank − 1) = 5 546; Σ finishers = 6 504. 5 546 / 6 504 × 100 = 85.27%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed118

Km — ultra races7 343 km

> 100 km9

> 160 km4

> 24h6

Longest race160,9 km

8th Wasatch Front 100 Mile — 11/9/1987

Km per year (ultra races)

2022

2023

2024

2025

2026

Race types (share of distance)

Road37,9%

Trail62,1%

Wins & podiums (ultra)

🏆 Win2

🏆 Win M3

🏅 Top 38

🏅 Top 3 M8

Longest winning streak1

Current streak0

Records

50 km3h51'32 100 km9h35'08 50 mi7h13'20 100 mi21h11'00 6 h59,22 km 12 h101,79 km 24 h160,93 km

HISTORY

118 race(s)

Date		Race	Perf.	Rk
2019
23.03	12h	10th Dizzy Daze 12 hours	51.499 km	56
2018
06.10	50km	17th Baker Lake 50K Ultra Trail Run	11:09:57 h	145
27.05	50km	7th Pigtails Challenge 50 km	8:48:22 h	17
29.04	50km	35th Mt. Si 50 km Ultra Run	8:06:32 h	62
24.03	12h	9th Dizzy Daze 12 hours	46.349 km	42
2017
07.10	50km	16th Baker Lake 50K Ultra Trail Run	10:35:20 h	157
23.04	50km	34th Mt. Si 50 km Ultra Run	8:42:00 h	59
25.03	12h	8th Dizzy Daze 12 hours	56.648 km	17
2016
13.08	12h	4th Hamster Endurance Runs 12 Hour Run	50.211 km	23
2015
03.10	50km	14th Baker Lake 50K Ultra Trail Run	9:54:39 h	133
21.06	60km	9th Lake Youngs Ultra	9:34:37 h	11
26.04	50km	32nd Mt. Si 50 km Ultra Run	8:13:51 h	81
14.03	12h	7th Dizzy Daze 12 hours	51.499 km	59
2014
04.10	50km	13th Baker Lake 50K Ultra Trail Run	10:44:21 h	177
16.08	12h	2nd Hamster Endurance Runs 12 Hour Run	50.211 km	23
15.06	28.8mi	8th Lake Youngs Ultra	6:36:04 h	21
17.05	12h	10th Watershed Preserve 12 Hr Trail Race	51.901 km	45
27.04	50km	31st Mt. Si 50 km Ultra Run	6:12:43 h	53
22.03	12h	6th Dizzy Daze 12 hours	51.499 km	66
15.03	50km	22nd Chuckanut 50K	9:43:54 h	345
2013
05.10	50km	12th Baker Lake 50K Ultra Trail Run	9:07:55 h	179
17.08	12h	1st Hamster Endurance Runs 12 Hour Run	50.211 km	12
08.06	28.8mi	7th Lake Youngs Ultra	6:39:00 h	24
18.05	12h	9th Watershed Preserve 12 Hr Trail Race	51.901 km	55
28.04	50km	30th Mt. Si 50 km Ultra Run	6:47:10 h	45
23.03	12h	5th Dizzy Daze 12 hours	51.499 km	61
2012
10.11	50km	16th Ron Herzog 50K	7:14:22 h	8
06.10	50km	11th Baker Lake 50K Ultra Trail Run	9:21:14 h	116
07.07	50km	5th Lord Hill Summer Trail Run	9:05:26 h	28
09.06	28.8mi	6th Lake Youngs Ultra	5:51:08 h	34
19.05	12h	8th Watershed Preserve 12 Hr Trail Race	51.901 km	58
22.04	50km	29th Mt. Si 50 km Ultra Run	7:05:29 h	56
2011
01.10	50km	10th Baker Lake 50K Ultra Trail Run	9:00:00 h	114
11.06	28.8mi	5th Lake Youngs Ultra	6:22:07 h	51
14.05	12h	7th Watershed Preserve 12 Hr Trail Race	51.901 km	63
23.04	50km	1st Skagit Valley Ultra	6:21:39 h	13
10.04	50km	28th Mt. Si 50 km Ultra Run	6:54:28 h	72
19.03	50km	19th Chuckanut 50K	9:46:00 h	291
2010
06.11	50km	15th Ron Herzog 50K	7:42:17 h	35
12.06	28.8mi	4th Lake Youngs Ultra	6:57:00 h	57
11.04	50km	27th Mt. Si 50 km Ultra Run	6:03:01 h	51
2009
07.11	50km	14th Ron Herzog 50K	6:33:10 h	29
03.10	50km	8th Baker Lake 50K Ultra Trail Run	8:56:00 h	62
13.06	28.8mi	3rd Lake Youngs Ultra	6:01:05 h	51
16.05	12h	5th Watershed Preserve 12 Hr Trail Race	51.901 km	55
24.01	29Mile	5th Pigtails Run 29Miles	5:37:00 h	2 🥈
2008
01.11	50km	13th Ron Herzog 50K	6:54:00 h	27
20.10	50km	7th Baker Lake 50K Ultra Trail Run	8:51:08 h	81
14.06	28.8mi	2nd Lake Youngs Ultra	7:16:00 h	89
13.04	50km	25th Mt. Si 50 km Ultra Run	5:44:54 h	38
2007
06.10	50km	6th Baker Lake 50K Ultra Trail Run	8:18:50 h	71
09.06	28.8mi	1st Lake Youngs Ultra	5:47:00 h	51
19.05	12h	3rd Watershed Preserve 12 Hr Trail Race	51.901 km	48
03.02	29Mile	2nd Pigtails Run 29Miles	5:36:40 h	7
13.01	50km	12th Bridle Trails Winter Running Festival	6:51:37 h	43
2006
11.11	50km	12th Ron Herzog 50K	6:48:06 h	25
07.10	50km	5th Baker Lake 50K Ultra Trail Run	9:09:16 h	111
18.03	50km	14th Chuckanut 50K	9:01:07 h	238
14.01	50km	11th Bridle Trails Winter Running Festival	7:51:30 h	17
2005
01.10	50km	4th Baker Lake 50K Ultra Trail Run	9:12:46 h	99
19.03	50km	13th Chuckanut 50K	9:09:43 h	207
2004
13.11	50km	11th Ron Herzog 50K	7:10:17 h	29
02.10	50km	3rd Baker Lake 50K Ultra Trail Run	9:00:00 h	67
13.03	50km	12th Chuckanut 50K	8:49:39 h	194
07.02	50km	1st Lord Hill Trail Run	7:05:00 h	23
2003
08.11	50km	Tanks Alot 50K	6:06:20 h	13
2002
09.11	50km	Tanks Alot 50K	8:22:49 h	16
26.10	50km	2nd Baker Lake 50K Ultra Trail Run	8:11:15 h	53
2001
10.11	50km	10th Ron Herzog 50K	6:27:07 h	21
25.05	24h	3rd Sri Chinmoy 24-Hour Track Run Seattle	88.000 km	10
17.03	50km	9th Chuckanut 50K	7:33:50 h	129
2000
11.11	50km	9th Ron Herzog 50K	5:58:12 h	20
12.08	34mi	2nd Glacier Peak Trail Run	9:32:30 h	15
26.05	24h	2nd Sri Chinmoy 24-Hour Track Run Seattle	80.000 km	14
1999
13.11	50km	8th Ron Herzog 50K	6:26:32 h	18
29.05	24h	1st Sri Chinmoy 24-Hour Track Run Seattle	100.181 km	14
20.03	24h	1st Pacific Rim One Day	83.685 km	24
13.03	50km	7th Chuckanut 50K	6:42:43 h	61
1998
14.11	50km	7th Ron Herzog 50K	5:35:15 h	12
1997
08.11	50km	6th Ron Herzog 50K	5:30:00 h	13
15.03	50km	5th Chuckanut 50K	6:50:01 h	45
18.01	50km	2nd Bridle Trails Winter Running Festival	6:56:53 h	13
1996
16.03	50km	4th Chuckanut 50K	6:40:06 h	37
20.01	50km	1st Bridle Trails Winter Running Festival	6:50:30 h	16
1995
11.11	50km	4th Granite Falls Run 50K	5:58:14 h	20
18.03	50km	3rd Chuckanut 50K	6:16:05 h	20
1993
25.04	75km	10th Falls to Gasworks Ultra Run	8:48:25 h	22
1988
23.04	12h	Sedro Woolley 12h track race	101.791 km	1 🏆
17.04	75km	6th Falls to Gasworks Ultra Run	7:10:08 h	11
1987
11.09	100mi	8th Wasatch Front 100 Mile	34:40:30 h	49
26.04	75km	5th Falls to Gasworks Ultra Run	7:27:20 h	20
1986
26.04	75km	4th Falls to Gasworks Ultra Run	7:38:43 h	29
1985
27.04	24h	Green Lake 24 Hour Run	102.354 km	17
21.04	75km	3rd Falls to Gasworks Ultra Run	6:44:25 h	9
1984
11.11	50mi	Oregon RRC 50 Mile Ultramarathon	7:30:27 h	11
04.11	50km	Badger Mountain Ultra Bean Run	4:17:54 h	6
20.10	50mi	Skagit Valley 50 Miler	7:48:04 h	6
07.09	100mi	5th Wasatch Front 100 Mile	32:59:41 h	18
10.08	84mi	Skagit County Centennial Run	16:03:07 h	3 🥉
02.06	50mi	Lake to Lake 50 Mile	7:16:33 h	3 🥉
28.04	24h	Green Lake 24 Hour Run	160.934 km	3 🥉
08.04	75km	2nd Falls to Gasworks Ultra Run	6:43:59 h	10
25.03	50mi	Sri Chinmoy 50 Mile Barnston Island	7:13:20 h	7
11.03	50mi	Oregon TAC 50 Mile Championchip	7:29:15 h	15
29.01	6h	Mudder Fell Six Hour	59.223 km	9
07.01	50km	A Winter Run	3:51:32 h	29
1983
05.11	50km	Badger Mountain Ultra Bean Run	4:06:44 h	5
22.10	100km	Skagit Valley 100 km	9:35:08 h	3 🥉
12.08	83mi	Skagit County Centennial Run	13:35:41 h	1 🏆
16.07	100mi	Skagit County Centennial Run	21:11:00 h	3 🥉
04.06	55mi	Baker to Bellingham Race	9:46:00 h	9
24.04	50mi	3rd Yakima Valley Coca-Cola Ultramarathons 50 Miles	7:43:27 h	7
10.04	75km	1st Falls to Gasworks Ultra Run	8:10:55 h	16
08.01	50km	A Winter Run	4:02:20 h	28
1982
24.04	100km	Skagit Valley 100 km	11:12:57 h	5
1981
01.08	55mi	Baker to Bellingham Race	9:50:27 h	5
25.04	50mi	Skagit Valley 50 Miler	8:17:36 h	8
02.01	50km	A Winter Run	4:24:33 h	33

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	11/9/1987	8th Wasatch Front 100 Mile	160,93	×3
✓ 2	7/9/1984	5th Wasatch Front 100 Mile	160,93	×3
✓ 3	16/7/1983	Skagit County Centennial Run	160,93	×3
✓ 4	28/4/1984	Green Lake 24 Hour Run	160,93	×3
✓ 5	10/8/1984	Skagit County Centennial Run	135,18	×2
✓ 6	12/8/1983	Skagit County Centennial Run	133,58	×2
✓ 7	27/4/1985	Green Lake 24 Hour Run	102,35	×2
✓ 8	23/4/1988	Sedro Woolley 12h track race	101,79	×1
✓ 9	29/5/1999	1st Sri Chinmoy 24-Hour Track Run Seattle	100,18	×1
✓ 10	22/10/1983	Skagit Valley 100 km	100,00	×1
✓ 11	24/4/1982	Skagit Valley 100 km	100,00	×1
✓ 12	4/6/1983	Baker to Bellingham Race	88,51	×1
✓ 13	1/8/1981	Baker to Bellingham Race	88,51	×1
✓ 14	25/5/2001	3rd Sri Chinmoy 24-Hour Track Run Seattle	88,00	×1
✓ 15	20/3/1999	1st Pacific Rim One Day	83,69	×1
✓ 16	11/11/1984	Oregon RRC 50 Mile Ultramarathon	80,47	×1
✓ 17	20/10/1984	Skagit Valley 50 Miler	80,47	×1
✓ 18	2/6/1984	Lake to Lake 50 Mile	80,47	×1
✓ 19	25/3/1984	Sri Chinmoy 50 Mile Barnston Island	80,47	×1
✓ 20	11/3/1984	Oregon TAC 50 Mile Championchip	80,47	×1
✓ 21	24/4/1983	3rd Yakima Valley Coca-Cola Ultramarathons 50 Miles	80,47	×1
✓ 22	25/4/1981	Skagit Valley 50 Miler	80,47	×1
✓ 23	26/5/2000	2nd Sri Chinmoy 24-Hour Track Run Seattle	80,00	×1
✓ 24	25/4/1993	10th Falls to Gasworks Ultra Run	75,00	×1
✓ 25	17/4/1988	6th Falls to Gasworks Ultra Run	75,00	×1
✓ 26	26/4/1987	5th Falls to Gasworks Ultra Run	75,00	×1
✓ 27	26/4/1986	4th Falls to Gasworks Ultra Run	75,00	×1
✓ 28	21/4/1985	3rd Falls to Gasworks Ultra Run	75,00	×1
✓ 29	8/4/1984	2nd Falls to Gasworks Ultra Run	75,00	×1
✓ 30	10/4/1983	1st Falls to Gasworks Ultra Run	75,00	×1
✓ 31	21/6/2015	9th Lake Youngs Ultra	60,00	×1
✓ 32	29/1/1984	Mudder Fell Six Hour	59,22	×1
✓ 33	25/3/2017	8th Dizzy Daze 12 hours	56,65	×1
✓ 34	12/8/2000	2nd Glacier Peak Trail Run	54,72	×1
✓ 35	17/5/2014	10th Watershed Preserve 12 Hr Trail Race	51,90	×1
✓ 36	18/5/2013	9th Watershed Preserve 12 Hr Trail Race	51,90	×1
✓ 37	19/5/2012	8th Watershed Preserve 12 Hr Trail Race	51,90	×1
✓ 38	14/5/2011	7th Watershed Preserve 12 Hr Trail Race	51,90	×1
✓ 39	16/5/2009	5th Watershed Preserve 12 Hr Trail Race	51,90	×1
✓ 40	19/5/2007	3rd Watershed Preserve 12 Hr Trail Race	51,90	×1
✓ 41	23/3/2019	10th Dizzy Daze 12 hours	51,50	×1
✓ 42	14/3/2015	7th Dizzy Daze 12 hours	51,50	×1
✓ 43	22/3/2014	6th Dizzy Daze 12 hours	51,50	×1
✓ 44	23/3/2013	5th Dizzy Daze 12 hours	51,50	×1
✓ 45	13/8/2016	4th Hamster Endurance Runs 12 Hour Run	50,21	—
✓ 46	16/8/2014	2nd Hamster Endurance Runs 12 Hour Run	50,21	—
✓ 47	17/8/2013	1st Hamster Endurance Runs 12 Hour Run	50,21	—
✓ 48	6/10/2018	17th Baker Lake 50K Ultra Trail Run	50,00	—
✓ 49	27/5/2018	7th Pigtails Challenge 50 km	50,00	—
✓ 50	29/4/2018	35th Mt. Si 50 km Ultra Run	50,00	—
51	7/10/2017	16th Baker Lake 50K Ultra Trail Run	50,00	—
52	23/4/2017	34th Mt. Si 50 km Ultra Run	50,00	—
53	3/10/2015	14th Baker Lake 50K Ultra Trail Run	50,00	—
54	26/4/2015	32nd Mt. Si 50 km Ultra Run	50,00	—
55	4/10/2014	13th Baker Lake 50K Ultra Trail Run	50,00	—
56	27/4/2014	31st Mt. Si 50 km Ultra Run	50,00	—
57	15/3/2014	22nd Chuckanut 50K	50,00	—
58	5/10/2013	12th Baker Lake 50K Ultra Trail Run	50,00	—
59	28/4/2013	30th Mt. Si 50 km Ultra Run	50,00	—
60	10/11/2012	16th Ron Herzog 50K	50,00	—
61	6/10/2012	11th Baker Lake 50K Ultra Trail Run	50,00	—
62	7/7/2012	5th Lord Hill Summer Trail Run	50,00	—
63	22/4/2012	29th Mt. Si 50 km Ultra Run	50,00	—
64	1/10/2011	10th Baker Lake 50K Ultra Trail Run	50,00	—
65	23/4/2011	1st Skagit Valley Ultra	50,00	—
66	10/4/2011	28th Mt. Si 50 km Ultra Run	50,00	—
67	19/3/2011	19th Chuckanut 50K	50,00	—
68	6/11/2010	15th Ron Herzog 50K	50,00	—
69	11/4/2010	27th Mt. Si 50 km Ultra Run	50,00	—
70	7/11/2009	14th Ron Herzog 50K	50,00	—
71	3/10/2009	8th Baker Lake 50K Ultra Trail Run	50,00	—
72	1/11/2008	13th Ron Herzog 50K	50,00	—
73	20/10/2008	7th Baker Lake 50K Ultra Trail Run	50,00	—
74	13/4/2008	25th Mt. Si 50 km Ultra Run	50,00	—
75	6/10/2007	6th Baker Lake 50K Ultra Trail Run	50,00	—
76	13/1/2007	12th Bridle Trails Winter Running Festival	50,00	—
77	11/11/2006	12th Ron Herzog 50K	50,00	—
78	7/10/2006	5th Baker Lake 50K Ultra Trail Run	50,00	—
79	18/3/2006	14th Chuckanut 50K	50,00	—
80	14/1/2006	11th Bridle Trails Winter Running Festival	50,00	—
81	1/10/2005	4th Baker Lake 50K Ultra Trail Run	50,00	—
82	19/3/2005	13th Chuckanut 50K	50,00	—
83	13/11/2004	11th Ron Herzog 50K	50,00	—
84	2/10/2004	3rd Baker Lake 50K Ultra Trail Run	50,00	—
85	13/3/2004	12th Chuckanut 50K	50,00	—
86	7/2/2004	1st Lord Hill Trail Run	50,00	—
87	8/11/2003	Tanks Alot 50K	50,00	—
88	9/11/2002	Tanks Alot 50K	50,00	—
89	26/10/2002	2nd Baker Lake 50K Ultra Trail Run	50,00	—
90	10/11/2001	10th Ron Herzog 50K	50,00	—
91	17/3/2001	9th Chuckanut 50K	50,00	—
92	11/11/2000	9th Ron Herzog 50K	50,00	—
93	13/11/1999	8th Ron Herzog 50K	50,00	—
94	13/3/1999	7th Chuckanut 50K	50,00	—
95	14/11/1998	7th Ron Herzog 50K	50,00	—
96	8/11/1997	6th Ron Herzog 50K	50,00	—
97	15/3/1997	5th Chuckanut 50K	50,00	—
98	18/1/1997	2nd Bridle Trails Winter Running Festival	50,00	—
99	16/3/1996	4th Chuckanut 50K	50,00	—
100	20/1/1996	1st Bridle Trails Winter Running Festival	50,00	—
101	11/11/1995	4th Granite Falls Run 50K	50,00	—
102	18/3/1995	3rd Chuckanut 50K	50,00	—
103	4/11/1984	Badger Mountain Ultra Bean Run	50,00	—
104	7/1/1984	A Winter Run	50,00	—
105	5/11/1983	Badger Mountain Ultra Bean Run	50,00	—
106	8/1/1983	A Winter Run	50,00	—
107	2/1/1981	A Winter Run	50,00	—
108	24/1/2009	5th Pigtails Run 29Miles	46,67	—
109	3/2/2007	2nd Pigtails Run 29Miles	46,67	—
110	15/6/2014	8th Lake Youngs Ultra	46,35	—
111	8/6/2013	7th Lake Youngs Ultra	46,35	—
112	9/6/2012	6th Lake Youngs Ultra	46,35	—
113	11/6/2011	5th Lake Youngs Ultra	46,35	—
114	12/6/2010	4th Lake Youngs Ultra	46,35	—
115	13/6/2009	3rd Lake Youngs Ultra	46,35	—
116	14/6/2008	2nd Lake Youngs Ultra	46,35	—
117	9/6/2007	1st Lake Youngs Ultra	46,35	—
118	24/3/2018	9th Dizzy Daze 12 hours	46,35	—