Yuji (大島雄治) Oshima
ID 126562
Born : 1976 Cat. M50 Ultrarunner since 2008 JPN
49
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
70
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
4,7%
Rank quotient ?This runner's calculation uses 49 eligible race(s): Σ(rank − 1) = 974; Σ finishers = 20 774. 974 / 20 774 × 100 = 4.69%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed49
Km — ultra races6 589 km
> 100 km19
> 160 km13
> 200 km10
> 24h5
Longest race535,0 km
Across Honshu R8 Foot Race — 23/4/2023

Km per year (ultra races)

771
4 races
2022
985
4 races
2023
210
2 races
2024
100
1 race
2025
163
2 races
2026

Race types (share of distance)

Road66,5%
Trail33,5%

Wins & podiums (ultra)

🏆 Win7
🏆 Win M7
🏅 Top 315
🏅 Top 3 M15
Longest winning streak1
Current streak0

Records

50 km3h53'01100 km7h56'0312 h117,89 km24 h190,40 km

HISTORY

49 race(s) · 4 split(s) nested
DateRacePerf.Rk
2026
14.06 100km JPN14th Hida Takayama 100 km Ultramarathon 8:31:38 h17
06.06 63km JPN14th Tojinbo 62 km Ultramarathon 5:04:29 h1 🏆
2025
08.06 100km JPN13th Hida Takayama 100 km Ultramarathon 10:45:47 h213
2024
09.06 100km JPN12th Hida Takayama 100 km Ultramarathon 9:03:46 h31
20.04 110km JPN30. Sakura Michi Kokusai Nature Run (Half) 10:58:00 h6
2023
19.08 24h JPN23th 24-hour relay & solo marathon Kobe 190.400 km4
11.06 71km JPN11th Hida Takayama 71 km Ultramarathon 7:37:35 h55
23.04 535km JPNAcross Honshu R8 Foot Race 7d 15:38:17 h3 🥉
11.03 24h JPN15th Jingu Gaien 24 Hour Challenge 188.707 km35
2022
22.10 535km JPNAcross Honshu R8 Foot Race 5d 19:59:00 h3 🥉
09.10 60km JPN14th Echigo Kubikino 60km Ultramarathon 4:51:53 h8
30.07 24h JPN22th 24-hour relay & solo marathon Kobe 105.400 km63
12.06 71km JPN10th Hida Takayama 71 km Ultramarathon 5:49:47 h5
2019
09.06 71km JPN8th Hida Takayama 71 km Ultramarathon 5:50:03 h6
25.05 52km JPN8th Tojinbo 52 km Ultramarathon 7:51:40 h54
20.04 250km JPN26. Sakura Michi Kokusai Nature Run 32:46:00 h46
2018
10.11 12h JPN13th Jingu Gaien 12 Hour Challenge 117.886 km3 🥉
21.10 60km JPN7th Noto Peninsula 60 km Ultra Marathon 4:48:27 h3 🥉
10.06 71km JPN7th Hida Takayama 71 km Ultramarathon 5:45:34 h10
21.04 250km JPN25. Sakura Michi Kokusai Nature Run 34:18:00 h45
2017
15.10 60km JPN6th Noto Peninsula 60 km Ultra Marathon 4:47:40 h1 🏆
10.09 70km JPN5th 70 km Ultramarathon Hakusan-Shirakawago 6:55:59 h16
11.06 71km JPN6th Hida Takayama 71 km Ultramarathon 6:08:31 h14
21.05 100km JPN23rd Yatsugatake Nobeyama 100 km 9:33:02 h22
2016
16.10 60km JPN5th Noto Peninsula 60 km Ultra Marathon 4:39:39 h3 🥉
12.06 72km JPN5th Hida Takayama 72 km Ultramarathon 5:54:44 h5
28.05 103km JPN5th Tojinbo 103 km Ultramarathon 8:36:29 h1 🏆
2015
19.12 24h JPN10th Jingu Gaien 24 Hour Challenge 59.605 km127
18.10 60km JPN4th Noto Peninsula 60 km Ultra Marathon 4:46:39 h2 🥈
13.09 50km JPN3rd 50 km Ultramarathon Hakusan-Shirakawago 3:53:01 h10
07.06 72km JPN4th Hida Takayama 72 km Ultramarathon 5:33:45 h6
16.05 103km JPN4th Tojinbo 103 km Ultramarathon 8:45:34 h1 🏆
18.04 250km JPN22. Sakura Michi Kokusai Nature Run 26:38:34 h3 🥉
2014
08.11 24h JPN9th Jingu Gaien 24 Hour Challenge 162.921 km51
08.06 72km JPN3rd Hida Takayama 72 km Ultramarathon 6:23:42 h10
03.05 140km JPN26. Yamaguchi 100 Hagi-O-Kan Maranic 140 km 15:55:54 h1 🏆
18.04 250km JPN21. Sakura Michi Kokusai Nature Run 26:51:35 h4
2013
20.10 60km JPN2nd Noto Peninsula 60 km Ultra Marathon 4:50:37 h3 🥉
29.09 100km JPN1st 100 km Ultramarathon Hakusan-Shirakawago 9:04:01 h15
30.06 100km road race JPN28. Lake Saroma 100 km Ultramarathon 7:56:03 h36
09.06 72km JPN2nd Hida Takayama 72 km Ultramarathon 6:03:18 h7
11.05 100km JPN2nd Tojinbo 100 km Ultramarathon 9:23:31 h1 🏆
19.04 250km JPN20. Sakura Michi Kokusai Nature Run 28:58:00 h4
2012
21.10 100km JPN1st Noto Peninsula 100 km Ultra Marathon 8:55:24 h6
15.09 100km JPN1st Tojinbo 100 km Ultramarathon 9:35:34 h1 🏆
21.04 250km JPN19. Sakura Michi Kokusai Nature Run 27:29:00 h6
2011
16.04 250km JPN18. Sakura Michi Kokusai Nature Run 30:48:00 h13
2010
17.04 250km JPN17. Sakura Michi Kokusai Nature Run 31:48:00 h25
2008
11.10 100km JPN7th Echigo Kubikino 100km Ultramarathon 8:49:29 h18