Katsuhiko (川原勝彦) Kawahara
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Born : 1955
Cat. M70 Ultrarunner since 2010
28
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
48
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
Japan36,1%
Rank quotient ?This runner's calculation uses 28 eligible race(s): Σ(rank − 1) = 4 823; Σ finishers = 13 344. 4 823 / 13 344 × 100 = 36.14%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed28
Km — ultra races2 663 km
> 100 km1
Longest race102,0 km
5th Okuizumo Ultra Orochi 100km Tooashi — 13/4/2019
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road100,0%
Records
HISTORY
28 race(s)| Runner | Races in common |
|---|---|