Manabu (石田学) Ishida
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Born : 1972
Cat. M50 Ultrarunner since 2013
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 ?Japan
Japan29,1%
Rank quotient ?This runner's calculation uses 31 eligible race(s): Σ(rank − 1) = 5 078; Σ finishers = 17 438. 5 078 / 17 438 × 100 = 29.12%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed33
Km — ultra races3 050 km
> 100 km7
Longest race154,0 km
8th Michinoku Tsugaru Journey Run 154K — 13/7/2024
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road87,8%
Trail3,3%
Stage8,9%
Wins & podiums (ultra)
🏆 Win0
🏆 Win M0
🏅 Top 31
🏅 Top 3 M1
Longest winning streak0
Current streak0
HISTORY
31 race(s) · 2 stage(s) nested| Runner | Races in common |
|---|---|