Hiroshi (石井浩史) Ishii
ID 565708
Born : 1962 Cat. M60 Ultrarunner since 2014 JPN
41
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
68
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
1
Countries visited ?JPNJapan
51,8%
Rank quotient ?This runner's calculation uses 41 eligible race(s): Σ(rank − 1) = 7 768; Σ finishers = 14 998. 7 768 / 14 998 × 100 = 51.79%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed47
Km — ultra races5 754 km
> 100 km24
> 160 km8
> 200 km6
Longest race514,0 km
15th River Road Foot Race 514 km — 30/4/2019

Km per year (ultra races)

2022
277
2 races
2023
281
2 races
2024
408
3 races
2025
150
1 race
2026

Race types (share of distance)

Road83,6%
Trail2,0%
Stage14,3%

Records

100 km12h25'24100 mi27h54'47

HISTORY

41 race(s) · 10 stage(s) nested
DateRacePerf.Rk
2026
28.02–01.03 150km/2stages JPN3rd Modern Japanese Silk Road Journey Run 26:03:11 h101
2025
15.11 142km JPN7th Autumn leaves in Okumusashi / Chichibu Journey run 25:25:07 h135
01–02.11 130km/2stages JPN3rd Mito Kaido Journey run 23:58:21 h80
15–16.03 136km/2stages JPN13th Arakawa Riverside Journey Stage Race 21:07:46 h46
2024
14.09 122km JPN7th Utsukushima Fukushima Journey Run 122K 22:29:26 h33
08.06 159km JPN5th Nikko Sennin Concentric Highway Journey Run 29:44:13 h69
2023
18.11 130km JPN1st Mito Kaido Journey run 21:36:26 h62
28.10 147km JPN5th Autumn leaves in Okumusashi / Chichibu Journey run 22:30:29 h58
2021
17.07 117km JPN1st Nakasendo Ultra 27:35:00 h40
30.04 503km JPN16th River Road Foot Race 503 km 5d 09:10:37 h52
03–04.04 136km/2stages JPN9th Arakawa Riverside Journey Stage Race 20:19:00 h35
2020
24.10 146km JPN2nd Autumn leaves in Okumusashi / Chichibu Journey run 23:19:01 h124
19.09 123km JPN3rd Utsukushima Fukushima Journey Run 123K 19:34:31 h83
22.08 101km JPN8th World Cultural Heritage "Fuji" Foot Race 16:09:00 h73
05.07 8h JPN26th 8-Hour Endurance Race Tokorozawa 58.800 km144
21.03 136km/2stages JPN8th Arakawa Riverside Journey Stage Race 19:03:42 h39
2019
02.11 145km JPN1st Autumn leaves in Okumusashi / Chichibu Journey run 23:18:13 h97
13.07 263km JPN4th Michinoku Tsugaru Journey Run 263K 2d 02:15:17 h103
29.06 8h JPN25th 8-Hour Endurance Race Tokorozawa 58.800 km193
15.06 161.6km JPN1st Nikko Sennin Concentric Journey Run 27:54:47 h63
30.04 514km JPN15th River Road Foot Race 514 km 5d 10:44:25 h80
13.04 70km JPN14th Toda Saiko 70 km 7:50:57 h276
16–17.03 136km/2stages JPN7th Arakawa Riverside Journey Stage Race 18:29:30 h46
2018
15.09 250km JPN1st Utsukushima Fukushima Journey Run 250K 46:13:59 h30
14.07 263km JPN3rd Michinoku Tsugaru Journey Run 263K 2d 02:22:54 h85
30.06 8h JPN24th 8-Hour Endurance Race Tokorozawa 53.900 km127
03.06 78km JPN25. Ultramarathon Okumusashi 9:58:03 h695
03.05 254km JPN14th River Road Foot Race 254 km 2d 02:47:24 h31
14.04 70km JPN13th Toda Saiko 70 km 7:44:59 h276
2017
15.07 200km JPN2nd Michinoku Tsugaru Journey Run 200K 38:50:08 h73
04.06 78km JPN24. Ultramarathon Okumusashi 9:28:32 h639
08.04 70km JPN12th Toda Saiko 70 km 7:36:47 h283
2016
09.10 100km JPN11th Echigo Kubikino 100km Ultramarathon 12:25:24 h630
02.07 8h JPN22nd 8-Hour Endurance Race Tokorozawa 48.690 km231
05.06 78km JPN23. Ultramarathon Okumusashi 9:31:21 h682
09.04 70km JPN11th Toda Saiko 70 km 7:39:59 h199
2015
22.06 77km JPN22. Ultramarathon Okumusashi 9:24:27 h653
11.04 70km JPN10th Toda Saiko 70 km 7:12:53 h140
2014
27.07 77km JPN21. Ultramarathon Okumusashi 10:55:09 h735
06.07 8h JPN20th 8-Hour Endurance Race Tokorozawa 61.674 km129
12.04 70km JPN9th Toda Saiko 70 km 7:21:46 h139