Toshiya (生形利也) Ubukata
ID 2111041
Ultrarunner since 2023 JPN
5
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
26
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
43,5%
Rank quotient ?This runner's calculation uses 5 eligible race(s): Σ(rank − 1) = 619; Σ finishers = 1 422. 619 / 1 422 × 100 = 43.53%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed5
Km — ultra races775 km
> 100 km4
> 160 km2
> 200 km1
Longest race225,0 km
14th Gunma 100km Walk — 10/5/2025

Km per year (ultra races)

2022
125
1 race
2023
125
1 race
2024
325
2 races
2025
200
1 race
2026

Race types (share of distance)

Road29,0%
Trail12,9%
Ult.Walk58,1%

Records

100 km17h56'32

HISTORY

5 race(s)
DateRacePerf.Rk
2026
02.05 200km JPN9th Ultra Walking around Lake Biwa 2d 06:37:02 h209
2025
24.05 100km JPN7th Tsukuba Rinrin Road 100km 17:56:32 h55
10.05 225km JPN14th Gunma 100km Walk 19:48:39 h86
2024
25.05 125km JPN8th Fujisan Issyu Walking 25:49:32 h105
2023
10.06 125km JPN7th Fujisan Issyu Walking 29:14:57 h169