Hiromi (小沼裕美) Onuma

Born : 1964 Cat. W60 Ultrarunner since 2012

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 ?

Australia

Japan

Taiwan

United States

60,7%

Rank quotient ?This runner's calculation uses 83 eligible race(s): Σ(rank − 1) = 12 332; Σ finishers = 20 324. 12 332 / 20 324 × 100 = 60.68%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed88

Km — ultra races9 654 km

> 100 km27

> 160 km13

> 200 km9

> 24h1

> 48h1

Longest race570,0 km

3rd Reiheishi Michi Kyoto to Nikko - 570 km — 27/4/2024

Km per year (ultra races)

739

2022

2 540

2023

3 039

2024

1 320

2025

592

2026

Race types (share of distance)

Road78,2%

Trail14,8%

Stage7,0%

Wins & podiums (ultra)

🏆 Win0

🏆 Win F1

🏅 Top 30

🏅 Top 3 F11

Longest winning streak0

Current streak0

Records

50 km5h55'32 100 km12h17'30 100 mi26h54'24 48 h236,83 km

HISTORY

84 race(s) · 8 stage(s) nested · 6 split(s) nested

Date		Race	Perf.	Rk
2026
21.06	100km	19. Okinoshima 100km Ultra Marathon	12:54:06 h	116
14.06	84.39km	10th JAL Mukatsuku Double Marathon	11:00:56 h	209
26.04	70km	2nd Suo-Oshima Ultramarathon	8:39:13 h	48
19.04	100km	7th Yamadera Zao 100 km Ultra Marathon	13:11:10 h	54
14–15.03	138km/2stages	14th Arakawa Riverside Journey	19:21:24 h	36
14.03	84km	14th Arakawa Riverside Journey - Stage 1	11:26:45 h	63
15.03	54km	14th Arakawa Riverside Journey - Stage 2	7:54:39 h	67
24.01	100km	36th Miyako 100 km Ultramarathon	12:51:08 h	167
2025
21.12	100km	8th Okinawa 100km Ultramarathon	13:39:13 h	491
26.10	100km	7th Yasaka Ultra Marathon in Hamada - 100 km	13:52:39 h	43
28.09	50km	3rd Mount Akagi Trail Running Race	13:13:31 h	68
30.08	105km	2nd Sendai Ultra 100km	16:35:29 h	18
02.08	100km	1st Chiba Ultra Marathon 100km Run	16:25:15 h	18
15.06	100km	1st Shimanami Surround 100km	14:01:09 h	31
07.06	100mi	2nd Miyakojima Ultra 100 Miles	28:34:36 h	15
01.06	53.7km	23rd Rishiri Island Ultra Marathon	5:57:28 h	100
21.03	250km	1st Izuichi Great Race 250km	47:08:50 h	21
15.03	200km	15th Little Edo Oedo 200k	34:52:13 h	149
26.01	100km	35th Miyako 100 km Ultramarathon	12:45:17 h	102
2024
15.12	100km	7th Okinawa 100km Ultramarathon	12:17:30 h	245
08.12	100km	5th Tobishima Ultra Marathon	12:33:27 h	107
10.11	70km	4th Hiba Izanami Highway Run	8:04:04 h	14
02.11	250km	5th Tokyo Great Race 250km EA	2d 00:35:47 h	10
27.10	74.8km	3rd Shiroishi Minami Zao Ultra Excursion 74.8km	10:24:05 h	12
06.10	100km	5th Mine Akiyoshidai Geopark Ultra Marathon	13:34:25 h	82
29.09	100km	2nd Mount Akagi 100 Ultra Marathon	13:43:47 h	92
31.08	105km	1st Sendai Ultra 100km	18:35:39 h	27
23.08	210km	1st Donan Story Journey Run	37:56:00 h	29
13.07	266km	8th Michinoku Tsugaru Journey Run 266K	2d 01:41:01 h	35
15.06	100km	3. OSJ Aizu Bandaisan Ultramarathon - 100 km	13:34:29 h	88
08.06	159km	5th Nikko Sennin Concentric Highway Journey Run	26:54:24 h	33
02.06	53.7km	22th Rishiri Island Ultra Marathon	6:18:18 h	105
27.04	570km	3rd Reiheishi Michi Kyoto to Nikko - 570 km	6d 21:06:46 h	6
06.04	160km	3rd Yagurazawa Round Trip Pre-Tournament	27:20:00 h	49
30–31.03	148km/2stages	1st Modern Japanese Silk Road Journey Run	21:53:16 h	23
30.03	78km	1st Modern Japanese Silk Road Journey Run - Stage 1	10:40:12 h	32
31.03	71km	1st Modern Japanese Silk Road Journey Run - Stage 2	11:13:04 h	23
16–17.03	136km/2stages	12th Arakawa Riverside Journey Stage Race	19:26:19 h	41
16.03	82km	12th Arakawa Riverside Journey Stage Race - Stage 1	11:31:23 h	76
17.03	54.2km	12th Arakawa Riverside Journey Stage Race - Stage 2	7:54:56 h	64
23.02	48h	13th Taipei 48hr Ultra Marathon	236.831 km	38
23.02	50km	13th Taipei 48hr Ultra Marathon - 50km Split	6:47:43 h	47
23.02	12h	13th Taipei 48hr Ultra Marathon - 12h Split	73.499 km	53
23.02	50mi	13th Taipei 48hr Ultra Marathon - 50mi Split	14:29:39 h	54
23.02	100km	13th Taipei 48hr Ultra Marathon - 100km Split	18:52:16 h	54
23.02	24h	13th Taipei 48hr Ultra Marathon - 24h Split	128.781 km	50
23.02	100mi	13th Taipei 48hr Ultra Marathon - 100mi Split	31:20:42 h	48
04.02	100km	3rd Amami yori yori Run	14:47:03 h	43
2023
17.12	100km	6th Okinawa 100km Ultramarathon	12:46:56 h	330
03.12	50km	Gold Coast 50 Road Race	5:56:23 h	322
18.11	130km	1st Mito Kaido Journey run	21:20:37 h	57
03.11	250km	4th Tokyo Great Race 250km EA	46:27:55 h	9
28.10	147km	5th Autumn leaves in Okumusashi / Chichibu Journey run	22:36:57 h	61
15.10	100km	5th Yasaka Ultra Marathon in Hamada - 100 km	13:36:54 h	33
24.09	100km	1st Mount Akagi 100 Ultra Marathon	14:41:17 h	99
16.09	251km	6th Utsukushima Fukushima Journey Run 251K	47:59:51 h	23
15.07	266km	7th Michinoku Tsugaru Journey Run 263K	2d 04:00:00 h	57
17.06	159km	4th Nikko Sennin Concentric Highway Journey Run	31:58:35 h	55
04.06	53.7km	21th Rishiri Island Ultra Marathon	6:50:37 h	139
15.04	160km	2nd Yagurazawa Round Trip Pre-Tournament	27:09:34 h	14
08.04	71km	18th Toda Saiko 70 km	8:43:41 h	185
01.04	120km	2nd Saitama Romantic Road Chronicle Gaiden Shinryuu	18:14:34 h	7
21.03	100km	1st Akagiyama 100	14:23:02 h	37
18.03	82km	11th Arakawa Riverside Journey Stage Race - Stage 1	11:38:49 h	60
11.03	200km	13th Little Edo Oedo 200k	33:23:09 h	128
05.02	100km	2nd Amami yori yori Run	14:18:33 h	32
22.01	100km	33th Miyako 100 km Ultramarathon	13:56:10 h	192
2022
18.12	100km	5th Okinawa 100km Ultramarathon	12:33:56 h	220
29.10	146km	4th Autumn leaves in Okumusashi / Chichibu Journey run	22:50:47 h	67
02.10	52km	9th Trainic world Soto-Chichibu Trail Run 50km	9:21:59 h	106
17–18.09	170km/2stages	1st Furano Biei Nature Run 100mi Stage Race	23:39:26 h	23
17.09	70km	1st Furano Biei Nature Run 100mi Stage 1	9:22:51 h	20
18.09	100km	1st Furano Biei Nature Run 100mi Stage 2	14:16:35 h	26
03.09	121km	2nd Tone River Run Up Journey Run Upstream	20:45:33 h	26
21.08	50km	3rd OSJ Mahirusanchi Trail 50K	11:10:58 h	119
05.06	100km	1. OSJ Aizu Bandaisan Ultramarathon - 100 km	13:55:36 h	207
2020
19.01	100km	30th Miyako 100 km Ultramarathon	12:56:44 h	237
2019
08.12	50km	Gold Coast 50 Road Race	6:08:30 h	226
29.09	53km	7th Trainic world Soto-Chichibu Trail Run 50km	10:50:45 h	263
24.03	100km	1st Ibaraki 100k Ultra Marathon	13:08:38 h	390
2018
08.09	49.8km	6th Trainic world Soto-Chichibu Trail Run 50km	10:27:41 h	248
08.07	49.6km	7th Trainic world Ogose-Tokigawa Trail Run 50km	9:17:00 h	183
10.06	50km	11th Skyline Trail Sugadaira	9:21:32 h	173
29.04	46km	11th Ishioka Trail Run	7:05:52 h	79
2017
09.07	49.8km	5th Trainic world Chichibu Trail Run 50km	10:03:18 h	131
29.04	49km	10th Ishioka Trail Run	6:00:08 h	70
2016
26.06	72.7km	3. Spatrail - Shima to Kusatsu	12:53:24 h	674
09.04	70km	11th Toda Saiko 70 km	7:59:54 h	269
2015
06.09	49.6km	4th Trainic world Ogose-Tokigawa Trail Run 50km	8:36:07 h	168
30.08	70km	2nd Tsukuba Renjyo 70 km Road & Trail Run	11:07:59 h	216
22.06	77km	22. Ultramarathon Okumusashi	9:49:54 h	811
11.04	70km	10th Toda Saiko 70 km	7:57:55 h	265
2014
12.10	100km	10th Echigo Kubikino 100km Ultramarathon	13:12:24 h	1054
06.07	8h	20th 8-Hour Endurance Race Tokorozawa	61.674 km	148
19.04	50km	9h Saipan Marathon	5:55:32 h	19
2013
26.04	84km	2nd Shizuoka to Yamanashi	18:44:58 h	421
10.03	72km	1st Izu Trail Journey	12:32:45 h	776
2012
03.06	50km	4th OSJ Okukuji Trail 50k	13:07:55 h	281

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	27/4/2024	3rd Reiheishi Michi Kyoto to Nikko - 570 km	570,00	×7
✓ 2	13/7/2024	8th Michinoku Tsugaru Journey Run 266K	266,00	×3
✓ 3	15/7/2023	7th Michinoku Tsugaru Journey Run 263K	266,00	×3
✓ 4	16/9/2023	6th Utsukushima Fukushima Journey Run 251K	251,00	×3
✓ 5	21/3/2025	1st Izuichi Great Race 250km	250,00	×3
✓ 6	2/11/2024	5th Tokyo Great Race 250km EA	250,00	×3
✓ 7	3/11/2023	4th Tokyo Great Race 250km EA	250,00	×3
✓ 8	23/2/2024	13th Taipei 48hr Ultra Marathon	236,83	×2
✓ 9	23/8/2024	1st Donan Story Journey Run	210,00	×2
✓ 10	15/3/2025	15th Little Edo Oedo 200k	200,00	×2
✓ 11	11/3/2023	13th Little Edo Oedo 200k	200,00	×2
✓ 12	17/9/2022	1st Furano Biei Nature Run 100mi Stage Race	170,00	×2
✓ 13	7/6/2025	2nd Miyakojima Ultra 100 Miles	160,93	×2
✓ 14	6/4/2024	3rd Yagurazawa Round Trip Pre-Tournament	160,00	×2
✓ 15	15/4/2023	2nd Yagurazawa Round Trip Pre-Tournament	160,00	×2
✓ 16	8/6/2024	5th Nikko Sennin Concentric Highway Journey Run	159,00	×1
✓ 17	17/6/2023	4th Nikko Sennin Concentric Highway Journey Run	159,00	×1
✓ 18	30/3/2024	1st Modern Japanese Silk Road Journey Run	148,00	×1
✓ 19	28/10/2023	5th Autumn leaves in Okumusashi / Chichibu Journey run	147,00	×1
✓ 20	29/10/2022	4th Autumn leaves in Okumusashi / Chichibu Journey run	146,00	×1
✓ 21	14/3/2026	14th Arakawa Riverside Journey	138,00	×1
✓ 22	16/3/2024	12th Arakawa Riverside Journey Stage Race	136,00	×1
✓ 23	18/11/2023	1st Mito Kaido Journey run	130,00	×1
✓ 24	3/9/2022	2nd Tone River Run Up Journey Run Upstream	121,00	×1
✓ 25	1/4/2023	2nd Saitama Romantic Road Chronicle Gaiden Shinryuu	120,00	×1
✓ 26	30/8/2025	2nd Sendai Ultra 100km	105,00	×1
✓ 27	31/8/2024	1st Sendai Ultra 100km	105,00	×1
✓ 28	21/6/2026	19. Okinoshima 100km Ultra Marathon	100,00	×1
✓ 29	19/4/2026	7th Yamadera Zao 100 km Ultra Marathon	100,00	×1
✓ 30	24/1/2026	36th Miyako 100 km Ultramarathon	100,00	×1
✓ 31	21/12/2025	8th Okinawa 100km Ultramarathon	100,00	×1
✓ 32	26/10/2025	7th Yasaka Ultra Marathon in Hamada - 100 km	100,00	×1
✓ 33	2/8/2025	1st Chiba Ultra Marathon 100km Run	100,00	×1
✓ 34	15/6/2025	1st Shimanami Surround 100km	100,00	×1
✓ 35	26/1/2025	35th Miyako 100 km Ultramarathon	100,00	×1
✓ 36	15/12/2024	7th Okinawa 100km Ultramarathon	100,00	×1
✓ 37	8/12/2024	5th Tobishima Ultra Marathon	100,00	×1
✓ 38	6/10/2024	5th Mine Akiyoshidai Geopark Ultra Marathon	100,00	×1
✓ 39	29/9/2024	2nd Mount Akagi 100 Ultra Marathon	100,00	×1
✓ 40	15/6/2024	3. OSJ Aizu Bandaisan Ultramarathon - 100 km	100,00	×1
✓ 41	4/2/2024	3rd Amami yori yori Run	100,00	×1
✓ 42	17/12/2023	6th Okinawa 100km Ultramarathon	100,00	×1
✓ 43	15/10/2023	5th Yasaka Ultra Marathon in Hamada - 100 km	100,00	×1
✓ 44	24/9/2023	1st Mount Akagi 100 Ultra Marathon	100,00	×1
✓ 45	21/3/2023	1st Akagiyama 100	100,00	×1
✓ 46	5/2/2023	2nd Amami yori yori Run	100,00	×1
✓ 47	22/1/2023	33th Miyako 100 km Ultramarathon	100,00	×1
✓ 48	18/12/2022	5th Okinawa 100km Ultramarathon	100,00	×1
✓ 49	5/6/2022	1. OSJ Aizu Bandaisan Ultramarathon - 100 km	100,00	×1
✓ 50	19/1/2020	30th Miyako 100 km Ultramarathon	100,00	×1
✓ 51	24/3/2019	1st Ibaraki 100k Ultra Marathon	100,00	×1
✓ 52	12/10/2014	10th Echigo Kubikino 100km Ultramarathon	100,00	×1
✓ 53	14/6/2026	10th JAL Mukatsuku Double Marathon	84,39	×1
✓ 54	26/4/2013	2nd Shizuoka to Yamanashi (STY)	84,00	×1
✓ 55	22/6/2015	22. Ultramarathon Okumusashi	77,00	—
✓ 56	27/10/2024	3rd Shiroishi Minami Zao Ultra Excursion 74.8km	74,80	—
✓ 57	26/6/2016	3. Spatrail - Shima to Kusatsu	72,70	—
✓ 58	10/3/2013	1st Izu Trail Journey	72,00	—
✓ 59	8/4/2023	18th Toda Saiko 70 km	71,00	—
✓ 60	26/4/2026	2nd Suo-Oshima Ultramarathon	70,00	—
✓ 61	10/11/2024	4th Hiba Izanami Highway Run	70,00	—
✓ 62	9/4/2016	11th Toda Saiko 70 km	70,00	—
✓ 63	30/8/2015	2nd Tsukuba Renjyo 70 km Road & Trail Run	70,00	—
✓ 64	11/4/2015	10th Toda Saiko 70 km	70,00	—
65	6/7/2014	20th 8-Hour Endurance Race Tokorozawa	61,67	—
66	1/6/2025	23rd Rishiri Island Ultra Marathon	53,70	—
67	2/6/2024	22th Rishiri Island Ultra Marathon	53,70	—
68	4/6/2023	21th Rishiri Island Ultra Marathon	53,70	—
69	29/9/2019	7th Trainic world Soto-Chichibu Trail Run 50km	53,00	—
70	2/10/2022	9th Trainic world Soto-Chichibu Trail Run 50km	52,00	—
71	28/9/2025	3rd Mount Akagi Trail Running Race	50,00	—
72	3/12/2023	Gold Coast 50 Road Race	50,00	—
73	21/8/2022	3rd OSJ Mahirusanchi Trail 50K	50,00	—
74	8/12/2019	Gold Coast 50 Road Race	50,00	—
75	10/6/2018	11th Skyline Trail Sugadaira	50,00	—
76	19/4/2014	9h Saipan Marathon	50,00	—
77	3/6/2012	4th OSJ Okukuji Trail 50k	50,00	—
78	8/9/2018	6th Trainic world Soto-Chichibu Trail Run 50km	49,80	—
79	9/7/2017	5th Trainic world Chichibu Trail Run 50km	49,80	—
80	8/7/2018	7th Trainic world Ogose-Tokigawa Trail Run 50km	49,60	—
81	6/9/2015	4th Trainic world Ogose-Tokigawa Trail Run 50km	49,60	—
82	29/4/2017	10th Ishioka Trail Run	49,00	—
83	29/4/2018	11th Ishioka Trail Run	46,00	—