Yoshiharu (榊原由治) Sakakibara
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Born : 1977
Cat. M45 Ultrarunner since 2010
23
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
Japan14,9%
Rank quotient ?This runner's calculation uses 23 eligible race(s): Σ(rank − 1) = 1 758; Σ finishers = 11 829. 1 758 / 11 829 × 100 = 14.86%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed23
Km — ultra races2 151 km
> 100 km6
> 160 km3
Longest race169,0 km
5th Lake Biwa 100 — 10/10/2025
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road23,8%
Trail76,2%
Wins & podiums (ultra)
🏆 Win0
🏆 Win M0
🏅 Top 32
🏅 Top 3 M2
Longest winning streak0
Current streak0
HISTORY
23 race(s)| Runner | Races in common |
|---|---|