Hiroyuki (山口裕之) Yamaguchi

Born : 1975 Cat. M50 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 ?

Japan

53,1%

Rank quotient ?This runner's calculation uses 112 eligible race(s): Σ(rank − 1) = 24 539; Σ finishers = 46 172. 24 539 / 46 172 × 100 = 53.15%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed121

Km — ultra races13 520 km

> 100 km36

> 160 km10

> 200 km7

Longest race570,0 km

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

Km per year (ultra races)

1 015

2022

1 425

2023

2 031

2024

2 275

2025

915

2026

Race types (share of distance)

Road87,6%

Trail4,8%

Stage7,6%

Wins & podiums (ultra)

🏆 Win0

🏆 Win M0

🏅 Top 31

🏅 Top 3 M1

Longest winning streak0

Current streak0

Records

50 km8h20'30 100 km11h10'32 100 mi26h43'56

HISTORY

114 race(s) · 12 stage(s) nested

Date		Race	Perf.	Rk
2026
28.06	100km	41. Lake Saroma 100 km Ultramarathon	12:51:51 h	2377
04.04	50km	5th Ultra Udon Maranic	8:20:30 h	78
28.03	160km	1st Shinkun Iga-goe Route Journey Run	28:26:02 h	85
20.03	205km	2nd Izuichi Great Race 205km	37:26:19 h	11
14.03	200km	16th Little Edo Oedo 200k	35:15:24 h	214
01.02	100km	5th Amami yori yori Run	13:13:15 h	13
11.01	100km	9th Yakushima Ultramarathon 100 km	14:59:29 h	87
2025
14.12	100km	6th Tobishima Ultra Marathon	13:07:53 h	107
15.11	142km	7th Autumn leaves in Okumusashi / Chichibu Journey run	25:20:57 h	129
04.10	151km	2nd Noto Country Journey Run	24:51:00 h	69
01.06	53.7km	23rd Rishiri Island Ultra Marathon	7:23:29 h	216
25.05	100km	31th Ebisu-Daikoku 100 km Marathon	13:16:29 h	310
10.05	55km	5th Kimitsu Ultra Marathon	7:50:20 h	278
30.04	516km	20th River Road Foot Race 514 km	4d 16:43:27 h	18
20.04	100km	25. Okukumano 100 km Ultramarathon	12:37:07 h	129
12.04	160km	4th Yagurazawa Round Trip Pre-Tournament	26:43:56 h	18
05–06.04	100km/2stages	4th Ultra Udon Maranic	15:18:13 h	76
05.04	50km	4th Ultra Udon Maranic stage 1 - 50km	7:48:15 h	83
06.04	50km	4th Ultra Udon Maranic stage 2 - 50km	7:29:58 h	73
29–30.03	149km/2stages	2nd Modern Japanese Silk Road Journey Run	23:14:57 h	60
29.03	78km	2nd Modern Japanese Silk Road Journey Run - Stage 1	11:46:07 h	81
30.03	71km	2nd Modern Japanese Silk Road Journey Run - Stage 2	11:28:50 h	55
21.03	250km	1st Izuichi Great Race 250km	2d 03:12:33 h	33
15–16.03	136km/2stages	13th Arakawa Riverside Journey Stage Race	18:41:24 h	25
15.03	82km	13th Arakawa Riverside Journey Stage Race - Stage 1	10:30:37 h	26
16.03	54.2km	13th Arakawa Riverside Journey Stage Race - Stage 2	8:10:47 h	51
02.02	100km	4th Amami yori yori Run	13:24:33 h	21
26.01	62km	3. Minuma Challenge 60	8:02:33 h	51
12.01	100km	8th Yakushima Ultramarathon 100 km	13:24:11 h	33
2024
08.12	100km	5th Tobishima Ultra Marathon	12:03:02 h	83
16.11	130km	2nd Mito Kaido Journey run	23:26:08 h	80
10.11	70km	4th Hiba Izanami Highway Run	8:29:04 h	24
02.11	250km	5th Tokyo Great Race 250km RE	47:42:18 h	31
27.10	74.8km	3rd Shiroishi Minami Zao Ultra Excursion 74.8km	11:52:54 h	22
20.10	70km	31. Ultramarathon Okumusashi	8:28:50 h	247
05.10	151km	1st Noto Country Journey Run	24:58:16 h	70
23.08	101km	11th World Cultural Heritage "Fuji" Foot Race	16:32:28 h	132
30.06	100km	39. Lake Saroma 100 km Ultramarathon	12:38:16 h	1382
15.06	100km	3. OSJ Aizu Bandaisan Ultramarathon - 100 km	13:45:28 h	97
27.04	570km	3rd Reiheishi Michi Kyoto to Nikko - 570 km	8d 05:39:14 h	14
06.04	160km	3rd Yagurazawa Round Trip Pre-Tournament	27:41:14 h	52
17.03	54.2km	12th Arakawa Riverside Journey Stage Race - Stage 2	7:45:26 h	62
14.01	100km	7th Yakushima Ultramarathon 100 km	14:55:12 h	55
2023
17.12	100km	6th Okinawa 100km Ultramarathon	13:43:36 h	481
18.11	130km	1st Mito Kaido Journey run	23:14:09 h	97
28.10	73km	2nd Kosaka Pass Ultra Run	11:20:29 h	22
15.10	100km	5th Yasaka Ultra Marathon in Hamada - 100 km	15:38:37 h	79
25.06	100km	38. Lake Saroma 100 km Ultramarathon	12:47:52 h	1628
28.05	100km	29th Ebisu-Daikoku 100 km Marathon	13:45:20 h	295
13.05	55km	3rd Kimitsu Ultra Marathon	6:50:38 h	62
03.05	251km	18th River Road Foot Race 251 km	2d 04:54:29 h	37
15.04	160km	2nd Yagurazawa Round Trip Pre-Tournament	27:24:25 h	18
01.04	120km	2nd Saitama Romantic Road Chronicle Gaiden Shinryuu	19:29:23 h	14
18–19.03	136km/2stages	11th Arakawa Riverside Journey Stage Race	18:47:39 h	27
18.03	82km	11th Arakawa Riverside Journey Stage Race - Stage 1	10:20:17 h	29
19.03	54.2km	11th Arakawa Riverside Journey Stage Race - Stage 2	8:27:22 h	104
04–05.03	100km/2stages	2nd Ultra Udon Maranic	14:09:50 h	56
04.03	45km	2nd Ultra Udon Maranic stage 1 - 45km	6:18:08 h	71
05.03	55km	2nd Ultra Udon Maranic stage 2 - 55km	7:51:42 h	54
2022
18.12	100km	5th Okinawa 100km Ultramarathon	13:17:43 h	317
11.12	100km	3rd Tobishima Ultra Marathon	13:43:00 h	140
20.11	63km	1. Minuma Challenge 60	8:12:05 h	53
05.11	73km	1st Kosaka Pass Ultra Run	10:26:56 h	21
15.05	60km	8th Ishigaki Island Ultra Marathon	9:26:01 h	232
02.05	363km	1st Reiheishi Michi Kyoto to Nikko - 363 km	5d 12:07:00 h	3 🥉
02.04	120km	1st Saitama Romantic Road Chronicle Gaiden Shinryuu	19:39:55 h	12
21–22.03	136km/2stages	10th Arakawa Riverside Journey Stage Race	20:03:00 h	60
21.03	81.6km	10th Arakawa Riverside Journey Stage Race - Stage 1	11:26:00 h	64
22.03	55.4km	10th Arakawa Riverside Journey Stage Race - Stage 2	8:37:00 h	66
2021
14.11	63km	0. Minuma Challenge 60	8:44:31 h	72
16.10	120km	1st Tone River Run Up Journey Run Upstream	24:08:00 h	76
17.07	117km	1st Nakasendo Ultra	26:51:00 h	37
08.05	57km	1st Kimitsu Ultra Marathon	8:28:53 h	247
03.04	80km	9th Arakawa Riverside Journey Stage Race - Stage 1	12:29:00 h	60
2020
24.10	146km	2nd Autumn leaves in Okumusashi / Chichibu Journey run	24:35:21 h	152
20.09	127km	3rd Utsukushima Fukushima Journey Run 127K	23:09:58 h	107
21.03	136km/2stages	8th Arakawa Riverside Journey Stage Race	19:15:37 h	44
19.01	100km	30th Miyako 100 km Ultramarathon	11:36:07 h	115
12.01	100km	5th Yakushima Ultramarathon 100 km	13:49:06 h	89
2019
15.12	100km	4th Okinawa 100km Ultramarathon	13:01:43 h	292
02.11	145km	1st Autumn leaves in Okumusashi / Chichibu Journey run	22:33:10 h	73
14.09	122km	2nd Utsukushima Fukushima Journey Run 122K	18:51:28 h	21
30.06	100km	34. Lake Saroma 100 km Ultramarathon	12:12:27 h	1460
15.06	161.6km	1st Nikko Sennin Concentric Journey Run	28:38:07 h	81
02.06	100km	2nd Nanto 100 km Ultramarathon	12:13:05 h	79
28.04	100km	21. Okukumano 100 km Ultramarathon	12:51:12 h	198
21.04	100km	1st Yamadera Zao 100 km Ultra Marathon	13:29:55 h	43
24.03	100km	1st Ibaraki 100k Ultra Marathon	11:28:35 h	221
13.01	100km	4th Yakushima Ultramarathon	13:26:48 h	52
2018
16.12	100km	3rd Okinawa 100km Ultramarathon	13:36:38 h	277
20.10	100km	9th Inagawa 100km Ultra-Marathon	12:34:35 h	32
23.09	100km	28. Akita Nairiku 100km Marathon	12:56:18 h	481
16.09	88km	9th Akiota Yajirushi Marathon 88km	11:28:18 h	112
09.09	100km	6th 100 km Ultramarathon Hakusan-Shirakawago	11:52:35 h	187
01.09	105k	2nd Miyagi Yumeguri Ultra Marathon - 105 km	14:23:16 h	15
14.07	188km	3rd Michinoku Tsugaru Journey Run 188K	36:36:41 h	51
24.06	100km	33. Lake Saroma 100 km Ultramarathon	11:10:32 h	883
10.06	100km	7th Hida Takayama 100 km Ultramarathon	12:01:31 h	497
20.05	100km	24th Yatsugatake Nobeyama 100 km	12:42:17 h	602
22.04	100km	20. Okukumano 100 km Ultramarathon	12:26:28 h	142
14.01	100km	3rd Yakushima Ultramarathon	12:35:28 h	19
2017
17.12	100km	2nd Okinawa 100km Ultramarathon	11:51:13 h	120
21.10	100km	2nd Iki 100 km Ultra Marathon	13:17:29 h	167
15.10	100km	6th Noto Peninsula 100 km Ultra Marathon	13:24:25 h	248
25.06	100km	32. Lake Saroma 100 km Ultramarathon	11:34:32 h	974
11.06	100km	13th Iwate Ginga 100km Marathon Challenge	12:04:07 h	450
27.05	103km	6th Tojinbo 103 km Ultramarathon	13:53:50 h	129
23.04	100km	19. Okukumano 100 km Ultramarathon	13:31:20 h	241
15.01	100km	27th Miyako 100 km Ultramarathon	12:23:53 h	180
2016
16.10	100km	5th Noto Peninsula 100 km Ultra Marathon	12:43:34 h	118
09.10	100km	11th Echigo Kubikino 100km Ultramarathon	11:31:51 h	390
18.09	100km	16th Tango 100 km Ultramarathon	13:53:02 h	1231
11.09	100km	1st Koyasan and Ryujin-Onsen 100 km Ultra Marathon	13:14:14 h	191
19.06	100km	11. Okinoshima 100km Ultra Marathon	11:50:38 h	111
28.05	103km	5th Tojinbo 103 km Ultramarathon	12:38:12 h	46
24.04	100km	18. Okukumano 100 km Ultramarathon	11:47:18 h	102
27.03	100km	12th Izu Oshima Ultra 100 km	11:41:37 h	61
2015
18.10	100km	4th Noto Peninsula 100 km Ultra Marathon	11:39:23 h	83
20.09	100km	15th Tango 100 km Ultramarathon	11:53:13 h	464
14.06	100km	11th Iwate Ginga 100km Marathon Challenge	11:43:21 h	297
16.05	103km	4th Tojinbo 103 km Ultramarathon	11:55:14 h	24
28.03	100km	11th Izu Oshima Ultra 100 km	11:31:39 h	41
11.01	100km	25th Miyako 100 km Ultramarathon	12:06:07 h	212
2014
12.10	100km	10th Echigo Kubikino 100km Ultramarathon	12:59:19 h	940
12.01	100km	24th Miyako 100 km Ultramarathon	13:12:20 h	276
2013
01.06	100km	1st Tokyo Shibamata 100 km	11:48:03 h	417

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	×5
✓ 2	30/4/2025	20th River Road Foot Race 514 km	516,00	×5
✓ 3	2/5/2022	1st Reiheishi Michi Kyoto to Nikko - 363 km	363,00	×3
✓ 4	3/5/2023	18th River Road Foot Race 251 km	251,00	×2
✓ 5	21/3/2025	1st Izuichi Great Race 250km	250,00	×2
✓ 6	2/11/2024	5th Tokyo Great Race 250km RE	250,00	×2
✓ 7	20/3/2026	2nd Izuichi Great Race 205km	205,00	×2
✓ 8	14/3/2026	16th Little Edo Oedo 200k	200,00	×2
✓ 9	14/7/2018	3rd Michinoku Tsugaru Journey Run 188K	188,00	×1
✓ 10	15/6/2019	1st Nikko Sennin Concentric Journey Run	161,60	×1
✓ 11	28/3/2026	1st Shinkun Iga-goe Route Journey Run	160,00	×1
✓ 12	12/4/2025	4th Yagurazawa Round Trip Pre-Tournament	160,00	×1
✓ 13	6/4/2024	3rd Yagurazawa Round Trip Pre-Tournament	160,00	×1
✓ 14	15/4/2023	2nd Yagurazawa Round Trip Pre-Tournament	160,00	×1
✓ 15	4/10/2025	2nd Noto Country Journey Run	151,00	×1
✓ 16	5/10/2024	1st Noto Country Journey Run	151,00	×1
✓ 17	29/3/2025	2nd Modern Japanese Silk Road Journey Run	149,00	×1
✓ 18	24/10/2020	2nd Autumn leaves in Okumusashi / Chichibu Journey run	146,00	×1
✓ 19	2/11/2019	1st Autumn leaves in Okumusashi / Chichibu Journey run	145,00	×1
✓ 20	15/11/2025	7th Autumn leaves in Okumusashi / Chichibu Journey run	142,00	×1
✓ 21	15/3/2025	13th Arakawa Riverside Journey Stage Race	136,00	×1
✓ 22	18/3/2023	11th Arakawa Riverside Journey Stage Race	136,00	×1
✓ 23	21/3/2022	10th Arakawa Riverside Journey Stage Race	136,00	×1
✓ 24	21/3/2020	8th Arakawa Riverside Journey Stage Race	136,00	×1
✓ 25	16/11/2024	2nd Mito Kaido Journey run	130,00	×1
✓ 26	18/11/2023	1st Mito Kaido Journey run	130,00	×1
✓ 27	20/9/2020	3rd Utsukushima Fukushima Journey Run 127K	127,00	×1
✓ 28	14/9/2019	2nd Utsukushima Fukushima Journey Run 122K	122,00	×1
✓ 29	1/4/2023	2nd Saitama Romantic Road Chronicle Gaiden Shinryuu	120,00	×1
✓ 30	2/4/2022	1st Saitama Romantic Road Chronicle Gaiden Shinryuu	120,00	×1
✓ 31	16/10/2021	1st Tone River Run Up Journey Run Upstream	120,00	×1
✓ 32	17/7/2021	1st Nakasendo Ultra	117,00	×1
✓ 33	27/5/2017	6th Tojinbo 103 km Ultramarathon	103,00	×1
✓ 34	28/5/2016	5th Tojinbo 103 km Ultramarathon	103,00	×1
✓ 35	16/5/2015	4th Tojinbo 103 km Ultramarathon	103,00	×1
✓ 36	23/8/2024	11th World Cultural Heritage "Fuji" Foot Race	101,00	×1
✓ 37	28/6/2026	41. Lake Saroma 100 km Ultramarathon	100,00	×1
✓ 38	1/2/2026	5th Amami yori yori Run	100,00	×1
✓ 39	11/1/2026	9th Yakushima Ultramarathon 100 km	100,00	×1
✓ 40	14/12/2025	6th Tobishima Ultra Marathon	100,00	×1
✓ 41	25/5/2025	31th Ebisu-Daikoku 100 km Marathon	100,00	×1
✓ 42	20/4/2025	25. Okukumano 100 km Ultramarathon	100,00	×1
✓ 43	5/4/2025	4th Ultra Udon Maranic	100,00	×1
✓ 44	2/2/2025	4th Amami yori yori Run	100,00	×1
✓ 45	12/1/2025	8th Yakushima Ultramarathon 100 km	100,00	×1
✓ 46	8/12/2024	5th Tobishima Ultra Marathon	100,00	×1
✓ 47	30/6/2024	39. Lake Saroma 100 km Ultramarathon	100,00	×1
✓ 48	15/6/2024	3. OSJ Aizu Bandaisan Ultramarathon - 100 km	100,00	×1
✓ 49	14/1/2024	7th Yakushima Ultramarathon 100 km	100,00	×1
✓ 50	17/12/2023	6th Okinawa 100km Ultramarathon	100,00	×1
✓ 51	15/10/2023	5th Yasaka Ultra Marathon in Hamada - 100 km	100,00	×1
✓ 52	25/6/2023	38. Lake Saroma 100 km Ultramarathon	100,00	×1
✓ 53	28/5/2023	29th Ebisu-Daikoku 100 km Marathon	100,00	×1
✓ 54	4/3/2023	2nd Ultra Udon Maranic	100,00	×1
✓ 55	18/12/2022	5th Okinawa 100km Ultramarathon	100,00	×1
✓ 56	11/12/2022	3rd Tobishima Ultra Marathon	100,00	×1
✓ 57	19/1/2020	30th Miyako 100 km Ultramarathon	100,00	×1
✓ 58	12/1/2020	5th Yakushima Ultramarathon 100 km	100,00	×1
✓ 59	15/12/2019	4th Okinawa 100km Ultramarathon	100,00	×1
✓ 60	30/6/2019	34. Lake Saroma 100 km Ultramarathon	100,00	×1
✓ 61	2/6/2019	2nd Nanto 100 km Ultramarathon	100,00	×1
✓ 62	28/4/2019	21. Okukumano 100 km Ultramarathon	100,00	×1
✓ 63	21/4/2019	1st Yamadera Zao 100 km Ultra Marathon	100,00	×1
✓ 64	24/3/2019	1st Ibaraki 100k Ultra Marathon	100,00	×1
✓ 65	13/1/2019	4th Yakushima Ultramarathon	100,00	×1
✓ 66	16/12/2018	3rd Okinawa 100km Ultramarathon	100,00	×1
✓ 67	20/10/2018	9th Inagawa 100km Ultra-Marathon	100,00	×1
✓ 68	23/9/2018	28. Akita Nairiku 100km Marathon	100,00	×1
✓ 69	9/9/2018	6th 100 km Ultramarathon Hakusan-Shirakawago	100,00	×1
✓ 70	24/6/2018	33. Lake Saroma 100 km Ultramarathon	100,00	×1
✓ 71	10/6/2018	7th Hida Takayama 100 km Ultramarathon	100,00	×1
✓ 72	20/5/2018	24th Yatsugatake Nobeyama 100 km	100,00	×1
✓ 73	22/4/2018	20. Okukumano 100 km Ultramarathon	100,00	×1
✓ 74	14/1/2018	3rd Yakushima Ultramarathon	100,00	×1
✓ 75	17/12/2017	2nd Okinawa 100km Ultramarathon	100,00	×1
✓ 76	21/10/2017	2nd Iki 100 km Ultra Marathon	100,00	×1
✓ 77	15/10/2017	6th Noto Peninsula 100 km Ultra Marathon	100,00	×1
✓ 78	25/6/2017	32. Lake Saroma 100 km Ultramarathon	100,00	×1
✓ 79	11/6/2017	13th Iwate Ginga 100km Marathon Challenge	100,00	×1
✓ 80	23/4/2017	19. Okukumano 100 km Ultramarathon	100,00	×1
✓ 81	15/1/2017	27th Miyako 100 km Ultramarathon	100,00	×1
✓ 82	16/10/2016	5th Noto Peninsula 100 km Ultra Marathon	100,00	×1
✓ 83	9/10/2016	11th Echigo Kubikino 100km Ultramarathon	100,00	×1
✓ 84	18/9/2016	16th Tango 100 km Ultramarathon	100,00	×1
✓ 85	11/9/2016	1st Koyasan and Ryujin-Onsen 100 km Ultra Marathon	100,00	×1
✓ 86	19/6/2016	11. Okinoshima 100km Ultra Marathon	100,00	×1
✓ 87	24/4/2016	18. Okukumano 100 km Ultramarathon	100,00	×1
✓ 88	27/3/2016	12th Izu Oshima Ultra 100 km	100,00	×1
✓ 89	18/10/2015	4th Noto Peninsula 100 km Ultra Marathon	100,00	×1
✓ 90	20/9/2015	15th Tango 100 km Ultramarathon	100,00	×1
✓ 91	14/6/2015	11th Iwate Ginga 100km Marathon Challenge	100,00	×1
✓ 92	28/3/2015	11th Izu Oshima Ultra 100 km	100,00	×1
✓ 93	11/1/2015	25th Miyako 100 km Ultramarathon	100,00	×1
✓ 94	12/10/2014	10th Echigo Kubikino 100km Ultramarathon	100,00	×1
✓ 95	12/1/2014	24th Miyako 100 km Ultramarathon	100,00	×1
✓ 96	1/6/2013	1st Tokyo Shibamata 100 km	100,00	×1
97	16/9/2018	9th Akiota Yajirushi Marathon 88km	88,00	—
98	27/10/2024	3rd Shiroishi Minami Zao Ultra Excursion 74.8km	74,80	—
99	28/10/2023	2nd Kosaka Pass Ultra Run	73,00	—
100	5/11/2022	1st Kosaka Pass Ultra Run	73,00	—
101	10/11/2024	4th Hiba Izanami Highway Run	70,00	—
102	20/10/2024	31. Ultramarathon Okumusashi	70,00	—
103	20/11/2022	1. Minuma Challenge 60	63,00	—
104	14/11/2021	0. Minuma Challenge 60	63,00	—
105	26/1/2025	3. Minuma Challenge 60	62,00	—
106	15/5/2022	8th Ishigaki Island Ultra Marathon	60,00	—
107	8/5/2021	1st Kimitsu Ultra Marathon	57,00	—
108	10/5/2025	5th Kimitsu Ultra Marathon	55,00	—
109	13/5/2023	3rd Kimitsu Ultra Marathon	55,00	—
110	1/6/2025	23rd Rishiri Island Ultra Marathon	53,70	—
111	4/4/2026	5th Ultra Udon Maranic	50,00	—