Naoji (平田尚史) Hirata

Born : 1975 Cat. M50 Ultrarunner since 2014

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 ?

Japan

32,2%

Rank quotient ?This runner's calculation uses 110 eligible race(s): Σ(rank − 1) = 10 578; Σ finishers = 32 809. 10 578 / 32 809 × 100 = 32.24%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed120

Km — ultra races14 077 km

> 100 km48

> 160 km21

> 200 km10

> 24h8

> 48h1

Longest race320,0 km

Tachibana Bay Coast 320 Ultra Marathon — 1/11/2019

Km per year (ultra races)

1 164

2022

1 762

2023

1 388

2024

1 198

2025

637

2026

Race types (share of distance)

Road91,1%

Trail2,1%

Stage6,8%

Records

100 km9h04'05 100 mi27h53'12 6 h66,70 km 24 h170,30 km 48 h284,34 km

HISTORY

115 race(s) · 8 stage(s) nested

Date		Race	Perf.	Rk
2026
04.05	173km	20th Nagasaki Tachibana Gulf Coast Super Maranic 173	34:12:48 h	74
11.04	60km	21st Toda Saiko 60 km	6:48:49 h	69
04.04	150km	9th Lake Biwa Kaizu Sakura Maranic - 150 km	26:02:00 h	9
15.03	54km	14th Arakawa Riverside Journey - Stage 2	6:40:33 h	16
01.02	100km	5th Amami yori yori Run	14:48:41 h	34
11.01	100km	9th Yakushima Ultramarathon 100 km	15:17:28 h	96
2025
01–02.11	130km/2stages	3rd Mito Kaido Journey run	19:01:06 h	29
01.11	62.2km	3rd Mito Kaido Journey run - Stage 1	9:38:03 h	57
02.11	68.1km	3rd Mito Kaido Journey run - Stage 2	9:23:03 h	29
04.10	151km	2nd Noto Country Journey Run	25:46:29 h	87
19.07	154km	9th Michinoku Tsugaru Journey Run 154K	27:12:33 h	18
23.05	100km	4th Hirosaki 100 km Ultra Run	11:11:40 h	22
26.04	189km	4th Reiheishi Michi Kyoto to Nikko - 189 km	7d 21:55:49 h	9
12.04	71km	20th Toda Saiko 70 km	7:37:18 h	109
29–30.03	149km/2stages	2nd Modern Japanese Silk Road Journey Run	20:46:37 h	28
29.03	78km	2nd Modern Japanese Silk Road Journey Run - Stage 1	10:44:21 h	47
30.03	71km	2nd Modern Japanese Silk Road Journey Run - Stage 2	10:02:16 h	23
16.03	54.2km	13th Arakawa Riverside Journey Stage Race - Stage 2	6:38:05 h	9
02.02	100km	4th Amami yori yori Run	14:22:39 h	30
12.01	100km	8th Yakushima Ultramarathon 100 km	15:23:16 h	86
2024
02.11	142km	6th Autumn leaves in Okumusashi / Chichibu Journey run	23:44:28 h	85
20.10	100km	6th Yasaka Ultra Marathon in Hamada - 100 km	15:14:00 h	108
05.10	151km	1st Noto Country Journey Run	23:36:39 h	40
08.06	159km	5th Nikko Sennin Concentric Highway Journey Run	27:53:12 h	48
02.06	53.7km	22th Rishiri Island Ultra Marathon	7:11:44 h	180
20.05	100km	3rd Hirosaki 100 km Ultra Run	10:42:32 h	17
27.04	207km	3rd Reiheishi Michi Kyoto to Nikko - 207 km	2d 05:23:18 h	5
13.04	71km	19th Toda Saiko 70 km	7:44:50 h	74
06.04	150km	7th Lake Biwa Kaizu Sakura Maranic - 150 km	25:20:00 h	10
17.03	54.2km	12th Arakawa Riverside Journey Stage Race - Stage 2	7:42:44 h	60
04.02	100km	3rd Amami yori yori Run	14:46:24 h	41
14.01	100km	7th Yakushima Ultramarathon 100 km	15:47:02 h	85
2023
28.10	147km	5th Autumn leaves in Okumusashi / Chichibu Journey run	22:55:09 h	68
21.10	100km	6th Iki 100 km Ultra Marathon	11:33:55 h	112
19.08	24h	23th 24-hour relay & solo marathon Kobe	112.200 km	62
15.07	266km	7th Michinoku Tsugaru Journey Run 263K	2d 02:56:24 h	55
02.07	8h	29th 8-Hour Endurance Race Tokorozawa - 3 tai	53.900 km	29
18.06	100km	16. Okinoshima 100km Ultra Marathon	14:14:43 h	213
26.05	48h	2nd Hirosaki 48h Ultra Run	284.344 km	7
03.05	173km	17th Nagasaki Tachibana Gulf Coast Super Maranic 173	25:09:15 h	4
08.04	71km	18th Toda Saiko 70 km	7:24:45 h	80
19.03	54.2km	11th Arakawa Riverside Journey Stage Race - Stage 2	7:16:36 h	51
11.03	200km	13th Little Edo Oedo 200k	34:01:43 h	150
05.02	100km	2nd Amami yori yori Run	14:21:04 h	34
08.01	100km	6th Yakushima Ultramarathon 100 km	14:22:03 h	69
2022
21.11	103km	16th Nagasaki Tachibana Gulf Coast Super Maranic 103	16:55:12 h	43
29.10	146km	4th Autumn leaves in Okumusashi / Chichibu Journey run	22:35:21 h	60
15.10	100km	5th Iki 100 km Ultra Marathon	13:52:00 h	178
16.07	266km	6th Michinoku Tsugaru Journey Run 263K	2d 02:08:59 h	63
03.07	8h	28th 8-Hour Endurance Race Tokorozawa	68.600 km	55
05.06	100km	1. OSJ Aizu Bandaisan Ultramarathon - 100 km	14:03:08 h	213
03.05	173km	16th Nagasaki Tachibana Gulf Coast Super Maranic 173	30:56:58 h	58
09.04	71km	17th Toda Saiko 70 km	6:50:30 h	27
21–22.03	136km/2stages	10th Arakawa Riverside Journey Stage Race	16:21:00 h	15
21.03	81.6km	10th Arakawa Riverside Journey Stage Race - Stage 1	9:26:00 h	12
22.03	55.4km	10th Arakawa Riverside Journey Stage Race - Stage 2	6:55:00 h	18
2021
05.12	100km	1st Tokyo Edogawa Ultra Marathon - 100 km	9:04:05 h	24
30.10	146km	3rd Autumn leaves in Okumusashi / Chichibu Journey run	21:08:43 h	80
03.10	100km	8th Naeba-Sanroku Geopark Tsunan Ultramarathon 100K	11:45:00 h	29
04.07	8h	27th 8-Hour Endurance Race Tokorozawa	68.600 km	122
10.04	70km	16th Toda Saiko 70 km	6:33:45 h	111
03–04.04	136km/2stages	9th Arakawa Riverside Journey Stage Race	15:07:00 h	5
03.04	80km	9th Arakawa Riverside Journey Stage Race - Stage 1	8:40:00 h	3 🥉
04.04	56km	9th Arakawa Riverside Journey Stage Race - Stage 2	6:27:00 h	6
2020
04.10	100km	7th Naeba-Sanroku Geopark Tsunan Ultramarathon 100K	11:20:49 h	29
05.07	8h	26th 8-Hour Endurance Race Tokorozawa	78.400 km	32
21.03	136km/2stages	8th Arakawa Riverside Journey Stage Race	18:07:28 h	29
12.01	100km	5th Yakushima Ultramarathon 100 km	12:55:02 h	55
2019
01.11	320km	Tachibana Bay Coast 320 Ultra Marathon	2d 07:48:42 h	9
19.10	100km	4th Iki 100 km Ultra Marathon	11:25:34 h	66
22.09	100km	29. Akita Nairiku 100km Marathon	9:46:18 h	55
14.09	129km	2nd Utsukushima Fukushima Journey Run 129K	21:35:30 h	27
03.08	24h	19th 24-hour relay & solo marathon Kobe	120.700 km	55
13.07	263km	4th Michinoku Tsugaru Journey Run 263K	47:35:07 h	53
15.06	161.6km	1st Nikko Sennin Concentric Journey Run	28:47:22 h	90
09.06	84.39km	3rd JAL Mukatsuku Double Marathon	10:08:44 h	142
01.06	24h	18. Green Charity Marathon Tokyo - Hard Run 24H	169.500 km	10
19.05	100km	25th Yatsugatake Nobeyama 100 km	12:05:25 h	426
21.04	100km	1st Yamadera Zao 100 km Ultra Marathon	12:38:40 h	21
24.03	100km	1st Ibaraki 100k Ultra Marathon	9:34:50 h	67
17.03	56km	7th Arakawa Riverside Journey Stage Race - Stage 2	7:12:02 h	40
13.01	100km	4th Yakushima Ultramarathon	12:37:54 h	30
2018
02.11	105km	Tachibana Bay Coast 105 Ultra Marathon	13:52:55 h	42
19.08	101km	6th World Cultural Heritage "Fuji" Foot Race	13:43:00 h	46
04.08	24h	18th 24-hour relay & solo marathon Kobe	127.500 km	49
14.07	263km	3rd Michinoku Tsugaru Journey Run 263K	47:13:28 h	37
30.06	8h	24th 8-Hour Endurance Race Tokorozawa	73.500 km	26
10.06	100km	2nd Koyasan and Ryujin-Onsen 100 km Ultra Marathon	11:54:30 h	67
03.06	100km	1st Nanto 100 km Ultramarathon	12:49:29 h	69
20.05	100km	24th Yatsugatake Nobeyama 100 km	11:24:39 h	255
04.05	217km	12th Nagasaki Tachibana Gulf Coast Super Maranic 217	30:50:27 h	14
22.04	100km	20. Okukumano 100 km Ultramarathon	11:41:15 h	89
14.04	102km	4th Okuizumo Ultra Orochi 100km Tooashi	11:22:48 h	46
21.01	100km	28th Miyako 100 km Ultramarathon	10:58:11 h	52
2017
02.11	276km	Tachibana Bay Coast 273 Ultra Marathon	2d 02:44:35 h	38
15.10	100km	6th Noto Peninsula 100 km Ultra Marathon	12:11:53 h	133
24.09	100km	27. Akita Nairiku 100km Marathon	10:26:38 h	68
10.09	100km	5th 100 km Ultramarathon Hakusan-Shirakawago	11:53:41 h	155
20.08	97km	5th World Cultural Heritage "Fuji" Foot Race	12:56:00 h	37
05.08	24h	17th 24-hour relay & solo marathon Kobe	132.600 km	31
15.07	250km	2nd Michinoku Tsugaru Journey Run 250K	41:38:23 h	15
01.07	8h	23rd 8-Hour Endurance Race Tokorozawa	61.674 km	111
11.06	100km	13th Iwate Ginga 100km Marathon Challenge	11:31:15 h	343
04.06	78km	24. Ultramarathon Okumusashi	9:21:30 h	585
21.05	100km	23rd Yatsugatake Nobeyama 100 km	12:21:23 h	339
04.05	173km	11th Nagasaki Tachibana Gulf Coast Super Maranic 173	26:06:54 h	24
08.01	100km	2nd Yakushima Ultramarathon	12:46:00 h	17
2016
17.12	24h	11th Jingu Gaien 24 Hour Challenge	167.697 km	68
04.11	103km	Tachibana Bay Coast 100 Ultra Marathon	16:02:20 h	143
16.10	100km	5th Noto Peninsula 100 km Ultra Marathon	12:37:30 h	112
09.10	100km	11th Echigo Kubikino 100km Ultramarathon	10:55:06 h	287
11.09	100km	4th 100 km Ultramarathon Hakusan-Shirakawago	12:26:55 h	190
17.07	200km	1st Michinoku Tsugaru Journey Run 200K	31:50:04 h	31
12.06	100km	12th Iwate Ginga 100km Marathon Challenge	11:14:02 h	207
22.05	100km	22nd Yatsugatake Nobeyama 100 km	12:06:23 h	386
04.05	129km	10th Nagasaki Tachibana Gulf Coast Super Maranic 173	19:36:49 h	86
11.01	6h	6th Iikoto Challenge - 6h	66.700 km	9
2015
12.09	24h	14. Green Charity Marathon Tokyo - Hard Run 24H	170.300 km	9
22.06	77km	22. Ultramarathon Okumusashi	8:11:52 h	290
14.06	100km	11th Iwate Ginga 100km Marathon Challenge	12:26:27 h	435
17.05	100km	21st Yatsugatake Nobeyama 100 km	11:57:45 h	390
19.04	118km	25th Fuji 5 Lakes 118 km Challenge	13:34:11 h	198
2014
08.06	100km	10th Iwate Ginga 100km Marathon Challenge	13:04:15 h	604

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	1/11/2019	Tachibana Bay Coast 320 Ultra Marathon	320,00	×3
✓ 2	26/5/2023	2nd Hirosaki 48h Ultra Run	284,34	×2
✓ 3	2/11/2017	Tachibana Bay Coast 273 Ultra Marathon	276,00	×2
✓ 4	15/7/2023	7th Michinoku Tsugaru Journey Run 263K	266,00	×2
✓ 5	16/7/2022	6th Michinoku Tsugaru Journey Run 263K	266,00	×2
✓ 6	13/7/2019	4th Michinoku Tsugaru Journey Run 263K	263,00	×2
✓ 7	14/7/2018	3rd Michinoku Tsugaru Journey Run 263K	263,00	×2
✓ 8	15/7/2017	2nd Michinoku Tsugaru Journey Run 250K	250,00	×2
✓ 9	4/5/2018	12th Nagasaki Tachibana Gulf Coast Super Maranic 217	217,00	×2
✓ 10	27/4/2024	3rd Reiheishi Michi Kyoto to Nikko - 207 km	207,00	×2
✓ 11	11/3/2023	13th Little Edo Oedo 200k	200,00	×2
✓ 12	17/7/2016	1st Michinoku Tsugaru Journey Run 200K	200,00	×2
✓ 13	26/4/2025	4th Reiheishi Michi Kyoto to Nikko - 189 km	189,00	×1
✓ 14	4/5/2026	20th Nagasaki Tachibana Gulf Coast Super Maranic 173	173,00	×1
✓ 15	3/5/2023	17th Nagasaki Tachibana Gulf Coast Super Maranic 173	173,00	×1
✓ 16	3/5/2022	16th Nagasaki Tachibana Gulf Coast Super Maranic 173	173,00	×1
✓ 17	4/5/2017	11th Nagasaki Tachibana Gulf Coast Super Maranic 173	173,00	×1
✓ 18	12/9/2015	14. Green Charity Marathon Tokyo - Hard Run 24H	170,30	×1
✓ 19	1/6/2019	18. Green Charity Marathon Tokyo - Hard Run 24H	169,50	×1
✓ 20	17/12/2016	11th Jingu Gaien 24 Hour Challenge	167,70	×1
✓ 21	15/6/2019	1st Nikko Sennin Concentric Journey Run	161,60	×1
✓ 22	8/6/2024	5th Nikko Sennin Concentric Highway Journey Run	159,00	×1
✓ 23	19/7/2025	9th Michinoku Tsugaru Journey Run 154K	154,00	×1
✓ 24	4/10/2025	2nd Noto Country Journey Run	151,00	×1
✓ 25	5/10/2024	1st Noto Country Journey Run	151,00	×1
✓ 26	4/4/2026	9th Lake Biwa Kaizu Sakura Maranic - 150 km	150,00	×1
✓ 27	6/4/2024	7th Lake Biwa Kaizu Sakura Maranic - 150 km	150,00	×1
✓ 28	29/3/2025	2nd Modern Japanese Silk Road Journey Run	149,00	×1
✓ 29	28/10/2023	5th Autumn leaves in Okumusashi / Chichibu Journey run	147,00	×1
✓ 30	29/10/2022	4th Autumn leaves in Okumusashi / Chichibu Journey run	146,00	×1
✓ 31	30/10/2021	3rd Autumn leaves in Okumusashi / Chichibu Journey run	146,00	×1
✓ 32	2/11/2024	6th Autumn leaves in Okumusashi / Chichibu Journey run	142,00	×1
✓ 33	21/3/2022	10th Arakawa Riverside Journey Stage Race	136,00	×1
✓ 34	3/4/2021	9th Arakawa Riverside Journey Stage Race	136,00	×1
✓ 35	21/3/2020	8th Arakawa Riverside Journey Stage Race	136,00	×1
✓ 36	5/8/2017	17th 24-hour relay & solo marathon Kobe	132,60	×1
✓ 37	1/11/2025	3rd Mito Kaido Journey run	130,00	×1
✓ 38	14/9/2019	2nd Utsukushima Fukushima Journey Run 129K	129,00	×1
✓ 39	4/5/2016	10th Nagasaki Tachibana Gulf Coast Super Maranic 173	129,00	×1
✓ 40	4/8/2018	18th 24-hour relay & solo marathon Kobe	127,50	×1
✓ 41	3/8/2019	19th 24-hour relay & solo marathon Kobe	120,70	×1
✓ 42	19/4/2015	25th Fuji 5 Lakes 118 km Challenge	118,00	×1
✓ 43	19/8/2023	23th 24-hour relay & solo marathon Kobe	112,20	×1
✓ 44	2/11/2018	Tachibana Bay Coast 105 Ultra Marathon	105,00	×1
✓ 45	21/11/2022	16th Nagasaki Tachibana Gulf Coast Super Maranic 103	103,00	×1
✓ 46	4/11/2016	Tachibana Bay Coast 100 Ultra Marathon	103,00	×1
✓ 47	14/4/2018	4th Okuizumo Ultra Orochi 100km Tooashi	102,00	×1
✓ 48	19/8/2018	6th World Cultural Heritage "Fuji" Foot Race	101,00	×1
✓ 49	1/2/2026	5th Amami yori yori Run	100,00	×1
✓ 50	11/1/2026	9th Yakushima Ultramarathon 100 km	100,00	×1
✓ 51	23/5/2025	4th Hirosaki 100 km Ultra Run	100,00	×1
✓ 52	2/2/2025	4th Amami yori yori Run	100,00	×1
✓ 53	12/1/2025	8th Yakushima Ultramarathon 100 km	100,00	×1
✓ 54	20/10/2024	6th Yasaka Ultra Marathon in Hamada - 100 km	100,00	×1
✓ 55	20/5/2024	3rd Hirosaki 100 km Ultra Run	100,00	×1
✓ 56	4/2/2024	3rd Amami yori yori Run	100,00	×1
✓ 57	14/1/2024	7th Yakushima Ultramarathon 100 km	100,00	×1
✓ 58	21/10/2023	6th Iki 100 km Ultra Marathon	100,00	×1
✓ 59	18/6/2023	16. Okinoshima 100km Ultra Marathon	100,00	×1
✓ 60	5/2/2023	2nd Amami yori yori Run	100,00	×1
✓ 61	8/1/2023	6th Yakushima Ultramarathon 100 km	100,00	×1
✓ 62	15/10/2022	5th Iki 100 km Ultra Marathon	100,00	×1
✓ 63	5/6/2022	1. OSJ Aizu Bandaisan Ultramarathon - 100 km	100,00	×1
✓ 64	5/12/2021	1st Tokyo Edogawa Ultra Marathon - 100 km	100,00	×1
✓ 65	3/10/2021	8th Naeba-Sanroku Geopark Tsunan Ultramarathon 100K	100,00	×1
✓ 66	4/10/2020	7th Naeba-Sanroku Geopark Tsunan Ultramarathon 100K	100,00	×1
✓ 67	12/1/2020	5th Yakushima Ultramarathon 100 km	100,00	×1
✓ 68	19/10/2019	4th Iki 100 km Ultra Marathon	100,00	×1
✓ 69	22/9/2019	29. Akita Nairiku 100km Marathon	100,00	×1
✓ 70	19/5/2019	25th Yatsugatake Nobeyama 100 km	100,00	×1
✓ 71	21/4/2019	1st Yamadera Zao 100 km Ultra Marathon	100,00	×1
✓ 72	24/3/2019	1st Ibaraki 100k Ultra Marathon	100,00	×1
✓ 73	13/1/2019	4th Yakushima Ultramarathon	100,00	×1
✓ 74	10/6/2018	2nd Koyasan and Ryujin-Onsen 100 km Ultra Marathon	100,00	×1
✓ 75	3/6/2018	1st Nanto 100 km Ultramarathon	100,00	×1
✓ 76	20/5/2018	24th Yatsugatake Nobeyama 100 km	100,00	×1
✓ 77	22/4/2018	20. Okukumano 100 km Ultramarathon	100,00	×1
✓ 78	21/1/2018	28th Miyako 100 km Ultramarathon	100,00	×1
✓ 79	15/10/2017	6th Noto Peninsula 100 km Ultra Marathon	100,00	×1
✓ 80	24/9/2017	27. Akita Nairiku 100km Marathon	100,00	×1
✓ 81	10/9/2017	5th 100 km Ultramarathon Hakusan-Shirakawago	100,00	×1
✓ 82	11/6/2017	13th Iwate Ginga 100km Marathon Challenge	100,00	×1
✓ 83	21/5/2017	23rd Yatsugatake Nobeyama 100 km	100,00	×1
✓ 84	8/1/2017	2nd Yakushima Ultramarathon	100,00	×1
✓ 85	16/10/2016	5th Noto Peninsula 100 km Ultra Marathon	100,00	×1
✓ 86	9/10/2016	11th Echigo Kubikino 100km Ultramarathon	100,00	×1
✓ 87	11/9/2016	4th 100 km Ultramarathon Hakusan-Shirakawago	100,00	×1
✓ 88	12/6/2016	12th Iwate Ginga 100km Marathon Challenge	100,00	×1
✓ 89	22/5/2016	22nd Yatsugatake Nobeyama 100 km	100,00	×1
✓ 90	14/6/2015	11th Iwate Ginga 100km Marathon Challenge	100,00	×1
✓ 91	17/5/2015	21st Yatsugatake Nobeyama 100 km	100,00	×1
✓ 92	8/6/2014	10th Iwate Ginga 100km Marathon Challenge	100,00	×1
✓ 93	20/8/2017	5th World Cultural Heritage "Fuji" Foot Race	97,00	—
94	9/6/2019	3rd JAL Mukatsuku Double Marathon	84,39	—
95	5/7/2020	26th 8-Hour Endurance Race Tokorozawa	78,40	—
96	4/6/2017	24. Ultramarathon Okumusashi	78,00	—
97	22/6/2015	22. Ultramarathon Okumusashi	77,00	—
98	30/6/2018	24th 8-Hour Endurance Race Tokorozawa	73,50	—
99	12/4/2025	20th Toda Saiko 70 km	71,00	—
100	13/4/2024	19th Toda Saiko 70 km	71,00	—
101	8/4/2023	18th Toda Saiko 70 km	71,00	—
102	9/4/2022	17th Toda Saiko 70 km	71,00	—
103	10/4/2021	16th Toda Saiko 70 km	70,00	—
104	3/7/2022	28th 8-Hour Endurance Race Tokorozawa	68,60	—
105	4/7/2021	27th 8-Hour Endurance Race Tokorozawa	68,60	—
106	11/1/2016	6th Iikoto Challenge - 6h	66,70	—
107	1/7/2017	23rd 8-Hour Endurance Race Tokorozawa	61,67	—
108	11/4/2026	21st Toda Saiko 60 km	60,00	—
109	2/7/2023	29th 8-Hour Endurance Race Tokorozawa - 3 tai	53,90	—
110	2/6/2024	22th Rishiri Island Ultra Marathon	53,70	—