Hiroyuki (大倉寛之) Okura
ID 409926
Born : 1972 Cat. M50 Ultrarunner since 2013 JPN
34
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
48
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
4
Countries visited ?JPNJapanNZLNew ZealandTHAThailandTPETaiwan
64,5%
Rank quotient ?This runner's calculation uses 34 eligible race(s): Σ(rank − 1) = 13 779; Σ finishers = 21 368. 13 779 / 21 368 × 100 = 64.48%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed34
Km — ultra races2 701 km
> 100 km8
> 160 km2
Longest race167,0 km
8th Ultra-Trail Mt. Fuji (UTMF) — 21/4/2023

Km per year (ultra races)

611
6 races
2022
353
3 races
2023
215
3 races
2024
2025
52
1 race
2026

Race types (share of distance)

Road44,6%
Trail55,4%

Records

50 km6h34'55100 km9h34'20

HISTORY

34 race(s)
DateRacePerf.Rk
2026
07.03 52km TPE1st Xtrail Kenting by UTMB - Xtrail 50K 12:08:15 h691
2024
07.12 53km THA1st Chiangmai Thailand by UTMB - HMONG 50 10:52:54 h1410
20.10 60km JPN30th River Shimanto 60km 8:20:58 h305
17.02 102km NZL15th Tarawera 100 km Ultramarathon 22:09:22 h573
2023
16.07 109.2km JPN15th OSJ Ontake 100km Ultra Trail 16:34:30 h273
21.05 77km JPN28th Saba Highway Ultramarathon 10:24:35 h135
21.04 167km JPN8th Ultra-Trail Mt. Fuji 38:50:42 h811
2022
23.10 66km JPN7th Osorakan-Trail 66 km 14:03:51 h59
18.09 109km JPN14th Shinetsu Five Mountains Trail 110km 21:31:52 h251
16.07 106.5km JPN14th OSJ Ontake 100km Ultra Trail 16:21:03 h394
21.05 50km JPN8th Mt. Hiei Int. 50 km Trail Run 9:41:19 h356
22.04 167km JPN7th Ultra-Trail Mt. Fuji 41:06:43 h1275
19.03 112km JPN26th Mt. Rocco Cannonball Run - 112 km Power 19:30:00 h57
2021
06.11 100km JPN1st OSJ Kami 100 24:14:00 h234
2020
18.10 56km JPN23th Mt. Rocco Cannonball Run - 56 km Speed 9:26:00 h253
22.03 56km JPN22th Mt. Rocco Cannonball Run - 56 km Speed 9:55:00 h176
2019
03.11 48km JPN3rd Ninja Trail Run 9:13:22 h290
20.10 56km JPN21th Mt. Rocco Cannonball Run - 56 km Speed 10:28:00 h202
2018
03.11 48km JPN2nd Ninja Trail Run 8:25:38 h211
21.10 56km JPN19th Mt. Rocco Cannonball Run - 56 km Speed 8:53:40 h103
12.05 50km JPN4th Mt. Hiei Int. 50 km Trail Run 10:47:25 h518
2017
22.10 56km JPN17th Mt. Rocco Cannonball Run - 56 km Night Speed 10:21:00 h13
13.05 50km JPN3rd Mt. Hiei Int. 50 km Trail Run 10:11:08 h572
25.03 112km JPN16th Mt. Rocco Cannonball Run - 112 km Power 20:29:00 h147
2016
16.10 100km JPN22nd River Shimanto 100km 12:34:57 h633
11.09 50km JPN1st Koyasan and Ryujin-Onsen 50 km Ultra Marathon 6:34:55 h344
12.06 100km JPN5th Hida Takayama 100 km Ultramarathon 13:57:12 h1352
28.05 50km JPN2nd Mt. Hiei Int. 50 km Trail Run 10:22:46 h753
27.03 56km JPN14th Mt. Rocco Cannonball Run - 56 km Speed 9:40:45 h386
2015
18.10 100km JPN21st River Shimanto 100km 9:34:20 h71
26.04 100km JPN7th 100 km Ultra Maranic Osaka 13:35:30 h274
29.03 100km JPN1st Osaka Yodogawa 100 km Ultra Marathon 12:38:37 h339
2014
30.03 56km JPN10th Mt. Rocco Cannonball Run - 56 km Speed 9:24:00 h161
2013
21.04 70km JPN5th 70 km Ultra Maranic Osaka 10:37:57 h191