Masayuki (三好將之) Miyoshi
ID 527352
Born : 1976 Cat. M50 Ultrarunner since 2014 JPN
29
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
76,7%
Rank quotient ?This runner's calculation uses 29 eligible race(s): Σ(rank − 1) = 7 914; Σ finishers = 10 319. 7 914 / 10 319 × 100 = 76.69%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed29
Km — ultra races3 070 km
> 100 km16
> 24h11
Longest race150,0 km
17. Green Charity Marathon Tokyo - Hard Run 24H — 2/6/2018

Km per year (ultra races)

60
1 race
2022
2023
100
2 races
2024
2025
150
2 races
2026

Race types (share of distance)

Road100,0%

Records

50 km7h50'23100 km11h56'5924 h150,00 km

HISTORY

29 race(s)
DateRacePerf.Rk
2026
21.06 100km JPN19. Okinoshima 100km Ultra Marathon 14:27:52 h314
04.04 50km JPN5th Ultra Udon Maranic 9:19:27 h132
2024
16.06 50km JPN17. Okinoshima 50km Ultra Marathon 7:50:23 h313
05.04 50km JPN3rd Ultra Udon Maranic 8:37:55 h122
2022
02.04 60km JPN1st Ultra Udon Maranic 9:41:11 h88
2021
18.07 65km JPN1st Yamaguchi Hagi Return 13:45:11 h429
2019
29.09 100km JPN3rd Yasaka Ultra Marathon in Hamada - 100 km 15:54:39 h139
16.06 100km JPN14. Okinoshima 100km Ultra Marathon 14:25:48 h459
13.04 102km JPN5th Okuizumo Ultra Orochi 100km Tooashi 15:45:30 h468
2018
10.11 24h JPN13th Jingu Gaien 24 Hour Challenge 147.996 km93
15.09 24h JPN21. Hiratsuka 24 hour race 133.200 km43
02.06 24h JPN17. Green Charity Marathon Tokyo - Hard Run 24H 150.000 km23
2017
11.11 24h JPN12th Jingu Gaien 24 Hour Challenge 136.104 km99
05.08 24h JPN17th 24-hour relay & solo marathon Kobe 107.100 km56
10.06 24h JPN16. Green Charity Marathon Tokyo - Hard Run 24H 122.794 km40
2016
17.12 24h JPN11th Jingu Gaien 24 Hour Challenge 138.876 km110
24.09 24h JPN19. Hiratsuka 24 hour race 110.720 km43
18.06 24h JPN15. Green Charity Marathon Tokyo - Hard Run 24H 110.264 km58
12.06 100km JPN12th Iwate Ginga 100km Marathon Challenge 13:57:34 h997
24.04 118km JPN26th Fuji 5 Lakes 118 km Challenge 14:57:34 h630
16.04 102km JPN2nd Okuizumo Ultra Orochi 100km Tooashi 14:47:27 h176
2015
19.12 24h JPN10th Jingu Gaien 24 Hour Challenge 149.151 km78
19.09 24h JPN18. Hiratsuka 24 hour race 145.320 km18
14.06 100km JPN11th Iwate Ginga 100km Marathon Challenge 12:25:47 h430
06.06 100km JPN25th Aso Caldera Super Marathon 100 km 12:21:58 h508
16.05 103km JPN4th Tojinbo 103 km Ultramarathon 12:59:54 h55
19.04 118km JPN25th Fuji 5 Lakes 118 km Challenge 14:53:24 h597
29.03 100km JPN1st Osaka Yodogawa 100 km Ultra Marathon 11:56:59 h276
2014
20.04 100km JPN24th Fuji 5 Lakes 100 km Challenge 13:41:29 h1149