Soryu (大石宗竜) Oishi
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Born : 1974
Cat. M50 Ultrarunner since 2014
25
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
39
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
Japan37,5%
Rank quotient ?This runner's calculation uses 25 eligible race(s): Σ(rank − 1) = 7 573; Σ finishers = 20 183. 7 573 / 20 183 × 100 = 37.52%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed25
Km — ultra races2 080 km
Longest race100,0 km
28th Muraoka 100 km Ultra Marathon — 28/9/2025
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road100,0%
Records
HISTORY
25 race(s)| Runner | Races in common |
|---|---|