Kazuyuki (東海林和幸) Tokairin
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Born : 1975
Cat. M50 Ultrarunner since 2015
22
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
40
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
Japan8,1%
Rank quotient ?This runner's calculation uses 22 eligible race(s): Σ(rank − 1) = 712; Σ finishers = 8 748. 712 / 8 748 × 100 = 8.14%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed22
Km — ultra races2 086 km
> 100 km7
> 160 km5
Longest race200,0 km
16th Little Edo Oedo 200k — 14/3/2026
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road19,2%
Trail80,8%
HISTORY
22 race(s)| Runner | Races in common |
|---|---|