Masahiko (大崎雅彦) Osaki
ID 202444
Born : 1971 Cat. M55 Ultrarunner since 2011 JPN
31
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
58,5%
Rank quotient ?This runner's calculation uses 31 eligible race(s): Σ(rank − 1) = 5 069; Σ finishers = 8 668. 5 069 / 8 668 × 100 = 58.48%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed31
Km — ultra races3 668 km
> 100 km10
> 160 km6
> 200 km5
Longest race250,0 km
29. Yamaguchi 100 Hagi-O-Kan Maranic 250 km — 2/5/2017

Km per year (ultra races)

100
1 race
2022
2023
2024
2025
2026

Race types (share of distance)

Road100,0%

Records

50 km5h58'48100 km11h02'29

HISTORY

31 race(s)
DateRacePerf.Rk
2022
12.06 100km JPN16th Iwate Ginga 100km Marathon Challenge 13:59:38 h746
2021
18.07 65km JPN1st Yamaguchi Hagi Return 11:55:34 h292
2020
12.01 50km JPN5th Yakushima Ultramarathon 50 km 6:20:56 h14
2019
29.09 100km JPN3rd Yasaka Ultra Marathon in Hamada - 100 km 14:36:12 h73
16.06 100km JPN14. Okinoshima 100km Ultra Marathon 13:52:24 h379
12.05 100km JPN26th Ebisu-Daikoku 100 km Marathon 13:42:04 h384
2018
16.09 88km JPN9th Akiota Yajirushi Marathon 88km 12:42:15 h249
10.06 84.39km JPN2nd JAL Mukatsuku Double Marathon 11:41:27 h211
03.06 60km JPN3rd Osakikamijima Ultra Marthon - 60 km 6:45:36 h4
2017
29.10 50km JPN1st Hiba Izanami Highway Run 5:58:48 h11
04.06 70km JPN2nd Osakikamijima Ultra Marthon - 70 km 8:21:36 h22
28.05 100km JPN24th Ebisu-Daikoku 100 km Marathon 13:57:41 h366
02.05 250km JPN29. Yamaguchi 100 Hagi-O-Kan Maranic 250 km 47:51:46 h282
15.04 102km JPN3rd Okuizumo Ultra Orochi 100km Tooashi 15:22:08 h298
08.01 100km JPN2nd Yakushima Ultramarathon 13:51:00 h46
2016
04.11 103km JPNTachibana Bay Coast 100 Ultra Marathon 15:08:40 h97
25.09 88km JPN19th Muraoka 88 km Ultra Marathon 12:25:42 h71
05.06 66km JPN1st Osakikamijima Ultra Marthon 6:37:12 h50
02.05 250km JPN28. Yamaguchi 100 Hagi-O-Kan Maranic 250 km 44:22:12 h104
2015
20.09 88km JPN6th Akiota Yajirushi Marathon 88km 11:09:54 h192
04.05 173km JPN9th Nagasaki Tachibana Gulf Coast Super Maranic 173 29:43:11 h94
29.03 100km JPN1st Osaka Yodogawa 100 km Ultra Marathon 12:50:12 h372
2014
22.11 103km JPNTachibana Bay Coast 100 Ultra Marathon 13:58:35 h57
14.09 88km JPN5th Akiota Yajirushi Marathon 88km 10:55:35 h130
02.05 250km JPN26. Yamaguchi 100 Hagi-O-Kan Maranic 250 km 44:04:10 h99
2013
26.05 100km JPN20th Ebisu-Daikoku 100 km Marathon 11:27:57 h99
02.05 250km JPN25. Yamaguchi 100 Hagi-O-Kan Maranic 250 km 40:18:59 h42
2012
27.05 100km JPN19th Ebisu-Daikoku 100 km Marathon 12:29:46 h140
02.05 250km JPN24. Yamaguchi 100 Hagi-O-Kan Maranic 250 km 41:47:01 h49
2011
29.05 100km JPN18th Ebisu-Daikoku 100 km Marathon 11:02:29 h102
03.05 140km JPN23. Yamaguchi 100 Hagi-O-Kan Maranic 140 km 19:35:38 h25