Tomoyuki (栗原朋之) Kurihara
External sources
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Born : 1977
Cat. M45 Ultrarunner since 2012
30
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
2
Countries visited ?Japan
South Korea
JapanSouth Korea5,7%
Rank quotient ?This runner's calculation uses 30 eligible race(s): Σ(rank − 1) = 1 254; Σ finishers = 22 169. 1 254 / 22 169 × 100 = 5.66%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed30
Km — ultra races3 101 km
> 100 km11
> 160 km5
Longest race160,9 km
17th OSJ Ontake 100 Mile Ultra Trail — 19/7/2025
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road47,0%
Trail53,0%
HISTORY
30 race(s)| Runner | Races in common |
|---|---|