Sean Nakamura

Born : 1978 Cat. M45 Ultrarunner since 2013

DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.

100

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 ?

Australia

France

United States

34,8%

Rank quotient ?This runner's calculation uses 114 eligible race(s): Σ(rank − 1) = 6 207; Σ finishers = 17 832. 6 207 / 17 832 × 100 = 34.81%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed114

Km — ultra races16 939 km

> 100 km62

> 160 km58

> 200 km17

> 24h6

> 48h2

Longest race402,3 km

2nd Cocodona 250 Mile Race — 2/5/2022

Km per year (ultra races)

1 944

2022

675

2023

2024

2025

2026

Race types (share of distance)

Road6,8%

Trail91,8%

Elim.1,4%

Wins & podiums (ultra)

🏆 Win3

🏆 Win M4

🏅 Top 36

🏅 Top 3 M9

Longest winning streak1

Current streak0

Records

50 km5h18'41 100 km12h37'42 50 mi8h52'11 100 mi19h25'11 12 h107,83 km 24 h182,70 km 48 h108,13 km Backyard24 loops

HISTORY

114 race(s)

Date		Race	Perf.	Rk
2023
21.07	202mi	8th Tahoe 200 Mile Endurance Run	4d 04:52:21 h	100
08.02	350km	5th Delirious W.E.S.T. 200 Miler	3d 17:05:59 h	23
2022
07.10	238mi	6th Moab 240 Endurance Run	4d 05:53:45 h	93
12.08	206mi	8th Bigfoot 200 Endurance Run	3d 20:57:46 h	59
16.07	100mi	21th Tahoe Rim Trail 100M Endurance Run	34:23:24 h	61
17.06	202mi	7th Tahoe 200 Mile Endurance Run	2d 17:47:50 h	6
03.06	100mi	21th San Diego 100 Mile Endurance Run	28:02:00 h	45
02.05	250mi	2nd Cocodona 250 Mile Race	4d 10:42:23 h	71
09.04	50mi	14th Lake Sonoma 50 Mile Race	11:10:22 h	104
05.02	100km	5th Happy Chinese New Year 100 km Race	13:25:19 h	4
2021
04.12	50mi	3rd Anza Borrego Cuyamaca 50 Mile Run	11:07:52 h	8
19.07	135mi	35th Badwater Ultramarathon	33:26:36 h	16
29.05	12h	13th Nanny Goat 12 Hour Race	107.826 km	2 🥈
22.05	100km	25th Bishop High Sierra Ultramarathons 100 km	15:01:49 h	23
2020
12.09	105km	9th Mogollon Monster 105 km	19:47:32 h	17
19.02	350km	2nd Delirious W.E.S.T. 200 Miler	4d 03:46:37 h	35
01.02	100km	7th Ordnance 100K	12:46:34 h	18
2019
28.12	Backyard Ultra	8th Trail of Fears Variable Hour Run	80.472 km (12h)	18
16.11	50mi	13th Endurance Challenge - California Trail 50 Mile	10:58:09 h	188
19.10	Backyard Ultra	8th Big Dog's Backyard Ultra	160.944 km (24h)	42
05.10	100mi	29th Arkansas Traveller 100	26:39:48 h	60
13.09	202mi	6th Tahoe 200 Mile Endurance Run	2d 12:38:10 h	5
06.09	100mi	40th Wasatch Front 100 Mile	30:02:15 h	72
30.08	171km	17ème Ultra Trail Tour du Mont Blanc	34:17:16 h	262
17.08	100mi	37th Leadville Trail 100 Mile	29:32:15 h	292
03.08	100mi	32nd Angeles Crest 100 Mile	24:42:49 h	20
20.07	100mi	31th Vermont 100 Mile Endurance Race	25:06:33 h	43
06.07	50km	14th Angeles National Forest 50k Trail Race	6:17:01 h	23
29.06	100mi	46th Western States 100 Mile Endurance Run	23:09:22 h	89
15.06	100mi	30th Mohican Trail 100 Mile	26:42:04 h	22
01.06	100mi	41st Old Dominion 100 Mile Endurance Run	23:14:38 h	26
06.04	100km	27th Leona Divide 100 km Run	12:50:52 h	47
15.03	100mi	5th RUN4Kids 100 Mile Race	19:25:11 h	1 🏆
06.02	200mi	1st The Franklins 200M	3d 07:31:36 h	6
19.01	100mi	9th Coldwater Rumble 100 Mile Race	23:05:16 h	7
2018
30.12	48h	34th Across the Years, 48h	108.126 km	68
24.11	50mi	2nd Best of San Diego 50 Miler	8:52:11 h	1 🏆
12.10	238mi	2nd Moab 240 Endurance Run	3d 13:12:45 h	28
06.10	100km	7th Cuyamaca 100 km Endurance Run	13:12:40 h	47
07.09	202mi	5th Tahoe 200 Mile Endurance Run	3d 02:08:05 h	19
04.08	100km	4th Tushars 100km Mountain Runs	22:33:59 h	21
14.07	50km	1st The Peak 50k Race	6:44:29 h	9
30.06	50km	2nd Black Mountain 50K	6:00:00 h	28
08.06	100mi	17th San Diego 100 Mile Endurance Run	27:58:55 h	51
26.05	12h	10th Nanny Goat 12 Hour Race	88.513 km	11
14.04	50mi	10th Lake Sonoma 50 Mile Race	10:38:13 h	118
07.04	50mi	39th American River 50 Mile Endurance Run	9:39:35 h	57
17.02	100km	5th Black Canyon Trail 100 km Run	12:37:42 h	82
2017
18.11	50mi	11th Endurance Challenge - California Trail 50 Mile	11:05:42 h	301
28.10	100mi	15th Javelina Jundred 100 Mile Endurance Run	23:02:27 h	81
13.10	238mi	1st Moab 240 Endurance Run	2d 19:50:10 h	2 🥈
16.09	106mi	6th Mogollon Monster 100 Mile	27:00:39 h	11
08.09	202mi	4th Tahoe 200 Mile Endurance Run	2d 10:29:16 h	1 🏆
25.08	100mi	7th Kodiak 100 Mile Ultramarathon	26:37:00 h	14
05.08	100mi	30th Angeles Crest 100 Mile	26:13:30 h	26
15.07	100mi	16th Tahoe Rim Trail 100M Endurance Run	26:31:20 h	35
09.06	100mi	16th San Diego 100 Mile Endurance Run	23:18:11 h	16
19.05	106mi	5th Cruel Jewel 100 Mile	31:43:35 h	8
13.05	50mi	14th PCT 50 Mile Trail Run	9:48:00 h	23
29.04	100km	4th The Canyons Endurance 100 km Run	14:57:21 h	68
22.04	50mi	25th Leona Divide 50 Mile Run	10:33:59 h	35
09.04	100km	7th Gorge Waterfalls 100k	16:18:08 h	167
04.03	50km	1st Griffith Park Trail Marathon	5:23:26 h	18
18.02	100km	4th Black Canyon Trail 100 km Run	17:36:24 h	230
04.02	100km	4th Sean O'Brien 100 km Trail Race	13:15:29 h	79
14.01	100mi	17th HURT 100 Endurance Run 100 Mile	34:27:39 h	37
2016
03.12	50mi	10th Endurance Challenge - California Trail 50 Mile	9:44:13 h	190
26.11	50mi	8th Santa Barbara Red Rock 50 Mile	12:48:39 h	11
29.10	100mi	14th Javelina Jundred 100 Mile Endurance Run	22:34:08 h	44
01.10	100km	5th Cuyamaca 100 km Endurance Run	12:59:54 h	23
17.09	50km	6th Kodiak Back 50 km Ultramarathon	9:15:00 h	10
09.09	202mi	3rd Tahoe 200 Mile Endurance Run	3d 00:36:18 h	12
26.08	170km	14ème Ultra Trail Tour du Mont Blanc	39:07:16 h	482
06.08	100mi	29th Angeles Crest 100 Mile	29:35:36 h	77
16.07	100mi	15th Tahoe Rim Trail 100M Endurance Run	29:00:50 h	57
08.07	100mi	6th Santa Barbara 100 Mile Endurance Race	31:07:37 h	11
03.06	100mi	15th San Diego 100 Mile Endurance Run	27:21:41 h	56
28.05	24h	8th Nanny Goat 24 Hour Race	160.934 km	13
14.05	50mi	13th PCT 50 Mile Trail Run	9:52:19 h	20
07.05	50km	11th Whoo's In El Moro 50k Trail Races - Spring Edition	6:04:21 h	24
16.04	50mi	24th Leona Divide 50 Mile Run	9:22:41 h	30
19.03	50km	3rd Old West Trails 50km Race	5:41:50 h	28
06.02	100km	3rd Sean O'Brien 100 km Trail Race	13:35:34 h	39
23.01	100mi	6th Coldwater Rumble 100 Mile Race	23:33:40 h	7
16.01	50mi	4th San Diego 50 Mile Trail	9:13:15 h	23
2015
05.12	50mi	9th Endurance Challenge - California Trail 50 Mile	10:09:33 h	192
03.10	100km	4th Cuyamaca 100 km Endurance Run	12:58:25 h	26
26.09	50km	2nd Endurance Challenge - Utah Trail 50 km	6:15:34 h	27
11.09	202mi	2nd Tahoe 200 Mile Endurance Run	3d 06:37:05 h	15
01.08	100mi	28th Angeles Crest 100 Mile	31:20:13 h	67
18.07	100mi	14th Tahoe Rim Trail 100M Endurance Run	28:57:20 h	66
20.06	24h	3rd San Francisco Summer Solstice 24h	128.063 km	33
06.06	100mi	14th San Diego 100 Mile Endurance Run	28:55:34 h	104
09.05	50mi	12th PCT 50 Mile Trail Run	11:34:30 h	83
25.04	50km	23rd Leona Divide 50 km Run	8:03:26 h	137
07.02	100km	2nd Sean O'Brien 100 km Trail Race	15:41:39 h	84
2014
06.12	100mi	1st Jester's World Record Run	27:06:00 h	3 🥉
04.10	100km	3rd Cuyamaca 100 km Endurance Run	14:51:35 h	57
20.09	100mi	4th Kodiak 100 Mile Ultramarathon	33:53:00 h	21
05.09	202mi	1st Tahoe 200 Mile Endurance Run	3d 23:33:26 h	46
19.07	100mi	13th Tahoe Rim Trail 100M Endurance Run	30:26:28 h	83
21.06	24h	2nd San Francisco Summer Solstice 24h	182.703 km	4
07.06	100mi	13th San Diego 100 Mile Endurance Run	26:14:14 h	49
17.05	100mi	4th Born to Run Ultra 100 Mile Marathon	22:10:18 h	7
10.05	50km	7th Whoo's In El Moro 50k Trail Races - Spring Edition	5:18:41 h	25
26.04	50mi	22nd Leona Divide 50 Mile Run	9:38:21 h	47
05.04	50km	5th Oriflamme 50K Trail Run	6:17:48 h	52
22.03	50mi	8th Old Goat's 50 Mile Trail Race	10:29:40 h	21
16.02	50km	4th Bandit Ultra 50K Trail Run	6:14:34 h	40
01.02	50mi	1st Sean O'Brien 50 Mile Trail Race	10:49:00 h	90
18.01	50mi	2nd San Diego 50 Mile Trail	9:59:01 h	44
2013
21.09	100mi	3rd Kodiak 100 Mile Ultramarathon	33:48:10 h	14
20.07	50km	1st Tri Lanai 3 Hills	8:46:35 h	4
27.04	50mi	21st Leona Divide 50 Mile Run	11:07:40 h	123

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	2/5/2022	2nd Cocodona 250 Mile Race	402,34	×4
✓ 2	7/10/2022	6th Moab 240 Endurance Run	383,02	×3
✓ 3	12/10/2018	2nd Moab 240 Endurance Run	383,02	×3
✓ 4	13/10/2017	1st Moab 240 Endurance Run	383,02	×3
✓ 5	8/2/2023	5th Delirious W.E.S.T. 200 Miler	350,00	×3
✓ 6	19/2/2020	2nd Delirious W.E.S.T. 200 Miler	350,00	×3
✓ 7	12/8/2022	8th Bigfoot 200 Endurance Run	331,52	×3
✓ 8	21/7/2023	8th Tahoe 200 Mile Endurance Run	325,09	×3
✓ 9	17/6/2022	7th Tahoe 200 Mile Endurance Run	325,09	×3
✓ 10	13/9/2019	6th Tahoe 200 Mile Endurance Run	325,09	×3
✓ 11	7/9/2018	5th Tahoe 200 Mile Endurance Run	325,09	×3
✓ 12	8/9/2017	4th Tahoe 200 Mile Endurance Run	325,09	×3
✓ 13	9/9/2016	3rd Tahoe 200 Mile Endurance Run	325,09	×3
✓ 14	11/9/2015	2nd Tahoe 200 Mile Endurance Run	325,09	×3
✓ 15	5/9/2014	1st Tahoe 200 Mile Endurance Run	325,09	×3
✓ 16	6/2/2019	1st The Franklins 200M	321,87	×3
✓ 17	19/7/2021	35th Badwater Ultramarathon	217,26	×2
✓ 18	21/6/2014	2nd San Francisco Summer Solstice 24h	182,70	×1
✓ 19	30/8/2019	17ème Ultra Trail Tour du Mont Blanc (UTMB)	171,00	×1
✓ 20	16/9/2017	6th Mogollon Monster 100 Mile	170,59	×1
✓ 21	19/5/2017	5th Cruel Jewel 100 Mile	170,59	×1
✓ 22	26/8/2016	14ème Ultra Trail Tour du Mont Blanc (UTMB)	170,00	×1
✓ 23	19/10/2019	8th Big Dog's Backyard Ultra	160,94	×1
✓ 24	16/7/2022	21th Tahoe Rim Trail 100M Endurance Run	160,93	×1
✓ 25	3/6/2022	21th San Diego 100 Mile Endurance Run	160,93	×1
✓ 26	5/10/2019	29th Arkansas Traveller 100	160,93	×1
✓ 27	6/9/2019	40th Wasatch Front 100 Mile	160,93	×1
✓ 28	17/8/2019	37th Leadville Trail 100 Mile	160,93	×1
✓ 29	3/8/2019	32nd Angeles Crest 100 Mile	160,93	×1
✓ 30	20/7/2019	31th Vermont 100 Mile Endurance Race	160,93	×1
✓ 31	29/6/2019	46th Western States 100 Mile Endurance Run	160,93	×1
✓ 32	15/6/2019	30th Mohican Trail 100 Mile	160,93	×1
✓ 33	1/6/2019	41st Old Dominion 100 Mile Endurance Run	160,93	×1
✓ 34	15/3/2019	5th RUN4Kids 100 Mile Race	160,93	×1
✓ 35	19/1/2019	9th Coldwater Rumble 100 Mile Race	160,93	×1
✓ 36	8/6/2018	17th San Diego 100 Mile Endurance Run	160,93	×1
✓ 37	28/10/2017	15th Javelina Jundred 100 Mile Endurance Run	160,93	×1
✓ 38	25/8/2017	7th Kodiak 100 Mile Ultramarathon	160,93	×1
✓ 39	5/8/2017	30th Angeles Crest 100 Mile	160,93	×1
✓ 40	15/7/2017	16th Tahoe Rim Trail 100M Endurance Run	160,93	×1
✓ 41	9/6/2017	16th San Diego 100 Mile Endurance Run	160,93	×1
✓ 42	14/1/2017	17th HURT 100 Endurance Run 100 Mile	160,93	×1
✓ 43	29/10/2016	14th Javelina Jundred 100 Mile Endurance Run	160,93	×1
✓ 44	6/8/2016	29th Angeles Crest 100 Mile	160,93	×1
✓ 45	16/7/2016	15th Tahoe Rim Trail 100M Endurance Run	160,93	×1
✓ 46	8/7/2016	6th Santa Barbara 100 Mile Endurance Race	160,93	×1
✓ 47	3/6/2016	15th San Diego 100 Mile Endurance Run	160,93	×1
✓ 48	23/1/2016	6th Coldwater Rumble 100 Mile Race	160,93	×1
✓ 49	1/8/2015	28th Angeles Crest 100 Mile	160,93	×1
✓ 50	18/7/2015	14th Tahoe Rim Trail 100M Endurance Run	160,93	×1
✓ 51	6/6/2015	14th San Diego 100 Mile Endurance Run	160,93	×1
✓ 52	6/12/2014	1st Jester's World Record Run	160,93	×1
✓ 53	20/9/2014	4th Kodiak 100 Mile Ultramarathon	160,93	×1
✓ 54	19/7/2014	13th Tahoe Rim Trail 100M Endurance Run	160,93	×1
✓ 55	7/6/2014	13th San Diego 100 Mile Endurance Run	160,93	×1
✓ 56	17/5/2014	4th Born to Run Ultra 100 Mile Marathon	160,93	×1
✓ 57	21/9/2013	3rd Kodiak 100 Mile Ultramarathon	160,93	×1
✓ 58	28/5/2016	8th Nanny Goat 24 Hour Race	160,93	×1
✓ 59	20/6/2015	3rd San Francisco Summer Solstice 24h	128,06	×1
✓ 60	30/12/2018	34th Across the Years, 48h	108,13	×1
✓ 61	29/5/2021	13th Nanny Goat 12 Hour Race	107,83	×1
✓ 62	12/9/2020	9th Mogollon Monster 105 km	105,00	×1
✓ 63	5/2/2022	5th Happy Chinese New Year 100 km Race	100,00	×1
✓ 64	22/5/2021	25th Bishop High Sierra Ultramarathons 100 km	100,00	×1
✓ 65	1/2/2020	7th Ordnance 100K	100,00	×1
✓ 66	6/4/2019	27th Leona Divide 100 km Run	100,00	×1
✓ 67	6/10/2018	7th Cuyamaca 100 km Endurance Run	100,00	×1
✓ 68	4/8/2018	4th Tushars 100km Mountain Runs	100,00	×1
✓ 69	17/2/2018	5th Black Canyon Trail 100 km Run	100,00	×1
✓ 70	29/4/2017	4th The Canyons Endurance 100 km Run	100,00	×1
✓ 71	9/4/2017	7th Gorge Waterfalls 100k	100,00	×1
✓ 72	18/2/2017	4th Black Canyon Trail 100 km Run	100,00	×1
✓ 73	4/2/2017	4th Sean O'Brien 100 km Trail Race	100,00	×1
✓ 74	1/10/2016	5th Cuyamaca 100 km Endurance Run	100,00	×1
✓ 75	6/2/2016	3rd Sean O'Brien 100 km Trail Race	100,00	×1
✓ 76	3/10/2015	4th Cuyamaca 100 km Endurance Run	100,00	×1
✓ 77	7/2/2015	2nd Sean O'Brien 100 km Trail Race	100,00	×1
✓ 78	4/10/2014	3rd Cuyamaca 100 km Endurance Run	100,00	×1
✓ 79	26/5/2018	10th Nanny Goat 12 Hour Race	88,51	—
✓ 80	28/12/2019	8th Trail of Fears Variable Hour Run	80,47	—
81	9/4/2022	14th Lake Sonoma 50 Mile Race	80,47	—
82	4/12/2021	3rd Anza Borrego Cuyamaca 50 Mile Run	80,47	—
83	16/11/2019	13th Endurance Challenge - California Trail 50 Mile	80,47	—
84	24/11/2018	2nd Best of San Diego 50 Miler	80,47	—
85	14/4/2018	10th Lake Sonoma 50 Mile Race	80,47	—
86	7/4/2018	39th American River 50 Mile Endurance Run	80,47	—
87	18/11/2017	11th Endurance Challenge - California Trail 50 Mile	80,47	—
88	13/5/2017	14th PCT 50 Mile Trail Run	80,47	—
89	22/4/2017	25th Leona Divide 50 Mile Run	80,47	—
90	3/12/2016	10th Endurance Challenge - California Trail 50 Mile	80,47	—
91	26/11/2016	8th Santa Barbara Red Rock 50 Mile	80,47	—
92	14/5/2016	13th PCT 50 Mile Trail Run	80,47	—
93	16/4/2016	24th Leona Divide 50 Mile Run	80,47	—
94	16/1/2016	4th San Diego 50 Mile Trail	80,47	—
95	5/12/2015	9th Endurance Challenge - California Trail 50 Mile	80,47	—
96	9/5/2015	12th PCT 50 Mile Trail Run	80,47	—
97	26/4/2014	22nd Leona Divide 50 Mile Run	80,47	—
98	22/3/2014	8th Old Goat's 50 Mile Trail Race	80,47	—
99	1/2/2014	1st Sean O'Brien 50 Mile Trail Race	80,47	—
100	18/1/2014	2nd San Diego 50 Mile Trail	80,47	—
101	27/4/2013	21st Leona Divide 50 Mile Run	80,47	—
102	6/7/2019	14th Angeles National Forest 50k Trail Race	50,00	—
103	14/7/2018	1st The Peak 50k Race	50,00	—
104	30/6/2018	2nd Black Mountain 50K	50,00	—
105	4/3/2017	1st Griffith Park Trail Marathon	50,00	—
106	17/9/2016	6th Kodiak Back 50 km Ultramarathon	50,00	—
107	7/5/2016	11th Whoo's In El Moro 50k Trail Races - Spring Edition	50,00	—
108	19/3/2016	3rd Old West Trails 50km Race	50,00	—
109	26/9/2015	2nd Endurance Challenge - Utah Trail 50 km	50,00	—
110	25/4/2015	23rd Leona Divide 50 km Run	50,00	—
111	10/5/2014	7th Whoo's In El Moro 50k Trail Races - Spring Edition	50,00	—
112	5/4/2014	5th Oriflamme 50K Trail Run	50,00	—
113	16/2/2014	4th Bandit Ultra 50K Trail Run	50,00	—
114	20/7/2013	1st Tri Lanai 3 Hills	50,00	—