Yuji (長掛雄治) Osakake
ID 953860
Born : 1971 Cat. M55 Ultrarunner since 2017 JPN
24
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
42
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
74,3%
Rank quotient ?This runner's calculation uses 24 eligible race(s): Σ(rank − 1) = 14 286; Σ finishers = 19 235. 14 286 / 19 235 × 100 = 74.27%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed25
Km — ultra races2 223 km
> 100 km4
Longest race130,0 km
3rd Mito Kaido Journey run — 1/11/2025

Km per year (ultra races)

300
3 races
2022
348
4 races
2023
299
4 races
2024
230
2 races
2025
151
2 races
2026

Race types (share of distance)

Road81,0%
Trail13,1%
Stage5,8%

Records

50 km11h08'18100 km12h21'07

HISTORY

24 race(s) · 2 stage(s) nested
DateRacePerf.Rk
2026
28.06 100km JPN41. Lake Saroma 100 km Ultramarathon 12:21:07 h1722
10.05 51km JPN7th FunTrails Round Minano 9:34:11 h309
2025
01–02.11 130km/2stages JPN3rd Mito Kaido Journey run 21:10:36 h57
20.04 100km JPN35th Fuji 4 Lakes 100 km Challenge 13:14:59 h1008
2024
08.12 70km JPN11th Izu Trail Journey 12:49:24 h991
16.11 50km JPN10th FunTrails50K Round 11:08:18 h410
15.09 128km JPN7th Utsukushima Fukushima Journey Run 128K 22:31:18 h22
12.05 51km JPN5th FunTrails Round Minano 10:35:13 h419
2023
10.12 70km JPN10th Izu Trail Journey 13:38:19 h1267
21.10 100km JPN6th Iki 100 km Ultra Marathon 13:35:06 h277
04.06 78km JPN30. Ultramarathon Okumusashi 10:50:38 h613
12.03 100km JPN5th Ibaraki 100k Ultra Marathon 13:03:27 h164
2022
15.10 100km JPN5th Iki 100 km Ultra Marathon 13:58:52 h195
17.04 100km JPN32th Fuji 5 Lakes 100 km Challenge 13:34:21 h986
13.03 100km JPN4th Ibaraki 100k Ultra Marathon 12:58:42 h209
2021
08.05 57km JPN1st Kimitsu Ultra Marathon 7:10:20 h126
27.03 115km JPN11th Oedo Night run 115k 18:22:26 h54
2020
19.09 123km JPN3rd Utsukushima Fukushima Journey Run 123K 20:01:58 h92
2019
20.10 100km JPN25th River Shimanto 100km 13:54:40 h1206
21.04 100km JPN29th Fuji 5 Lakes 100 km Challenge 12:51:26 h821
24.03 100km JPN1st Ibaraki 100k Ultra Marathon 12:43:19 h338
2018
21.10 100km JPN24th River Shimanto 100km 13:45:57 h1166
22.04 100km JPN28th Fuji 5 Lakes 100 km Challenge 13:32:23 h995
2017
23.04 100km JPN27th Fuji 5 Lakes 100 km Challenge 13:07:11 h863