Hiroyuki (伊藤博行) Ito
ID 473802
Born : 1970 Cat. M55 Ultrarunner since 2013 JPN
36
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
50
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
46,1%
Rank quotient ?This runner's calculation uses 36 eligible race(s): Σ(rank − 1) = 5 551; Σ finishers = 12 038. 5 551 / 12 038 × 100 = 46.11%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed36
Km — ultra races3 340 km
> 100 km8
> 24h1
Longest race140,0 km
28. Yamaguchi 100 Hagi-O-Kan Maranic 140 km — 3/5/2016

Km per year (ultra races)

157
2 races
2022
233
3 races
2023
209
2 races
2024
2025
50
1 race
2026

Race types (share of distance)

Road87,5%
Trail12,5%

Records

50 km9h07'26100 km11h24'0324 h83,20 km

HISTORY

36 race(s)
DateRacePerf.Rk
2026
28.03 50km JPN34th Mt. Rocco Cannonball Run - 50km Night Speed 11:51:00 h60
2024
21.04 100km JPN3rd Suo-Oshima Ultra Marathon - 100 km 15:18:06 h233
23.03 109km JPN2nd Hiroshima Wangan Trail Run 33:43:41 h490
2023
04.11 50km JPN5th Saioto Colors 9:54:34 h43
23.04 100km JPN2nd Suo-Oshima Ultra Marathon - 100 km 13:39:10 h109
25.03 24h JPN3rd GGR-solo-24h 83.200 km18
2022
06.11 50km JPN4th Saioto Colors 9:26:21 h27
24.09 107km JPN1st Hiroshima Wangan Trail Run 29:14:37 h271
2021
17.11 50km JPN3rd Saioto Colors 9:07:26 h18
18.07 100km JPN1st Yamaguchi Hagi Return 14:49:36 h116
2019
08.12 100km JPN2nd Tobishima Ultra Marathon 12:43:12 h109
10.11 60km JPN3rd Hiba Izanami Highway Run 7:10:44 h29
29.09 100km JPN3rd Yasaka Ultra Marathon in Hamada - 100 km 14:01:14 h50
16.06 100km JPN14. Okinoshima 100km Ultra Marathon 13:46:17 h364
12.05 100km JPN26th Ebisu-Daikoku 100 km Marathon 11:35:05 h128
13.04 102km JPN5th Okuizumo Ultra Orochi 100km Tooashi 12:36:18 h144
2018
09.12 100km JPN1st Tobishima Ultra Marathon 13:57:15 h121
21.10 100km JPN24th River Shimanto 100km 11:53:33 h504
17.06 100km JPN13. Okinoshima 100km Ultra Marathon 13:38:55 h270
10.06 84.39km JPN2nd JAL Mukatsuku Double Marathon 11:45:50 h219
27.05 100km JPN25th Ebisu-Daikoku 100 km Marathon 13:33:06 h254
14.04 102km JPN4th Okuizumo Ultra Orochi 100km Tooashi 14:07:23 h220
2017
15.10 100km JPN23rd River Shimanto 100km 11:24:03 h376
28.05 100km JPN24th Ebisu-Daikoku 100 km Marathon 12:26:47 h164
15.04 102km JPN3rd Okuizumo Ultra Orochi 100km Tooashi 15:07:25 h284
05.03 100km JPN3rd Nagoura Marathon 100 km 13:01:57 h90
2016
16.10 100km JPN5th Noto Peninsula 100 km Ultra Marathon 12:52:56 h130
03.05 140km JPN28. Yamaguchi 100 Hagi-O-Kan Maranic 140 km 22:23:09 h102
16.04 102km JPN2nd Okuizumo Ultra Orochi 100km Tooashi 12:45:26 h63
06.03 100km JPN2nd Nagoura Marathon 100 km 12:30:46 h79
2015
17.10 100km JPN1. Kirishima Ultra Travel Marathon - 100km 13:04:15 h29
20.09 100km JPN6th Akiota Yajirushi Marathon 100km 12:52:18 h79
11.04 102km JPN1st Okuizumo Ultra Orochi 100km Tooashi 13:37:54 h83
2014
14.09 88km JPN5th Akiota Yajirushi Marathon 88km 10:02:02 h65
2013
15.09 88km JPN4th Akiota Yajirushi Marathon 88km 11:02:37 h189
04.05 70km JPN25. Yamaguchi 100 Hagi-O-Kan Maranic 70 km 8:28:11 h57