Kazufumi (安井和史) Yasui
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Born : 1978
Cat. M45 Ultrarunner since 2018
51
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
60
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
Japan23,8%
Rank quotient ?This runner's calculation uses 60 eligible race(s): Σ(rank − 1) = 3 309; Σ finishers = 13 928. 3 309 / 13 928 × 100 = 23.76%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed60
Km — ultra races6 127 km
> 100 km23
> 160 km9
> 200 km1
> 24h6
Longest race438,0 km
1st Shiga 1 Round Trail — 30/4/2022
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road39,2%
Trail58,2%
Stage2,6%
Wins & podiums (ultra)
🏆 Win8
🏆 Win M8
🏅 Top 311
🏅 Top 3 M11
Longest winning streak2
Current streak0
HISTORY
60 race(s)| Runner | Races in common |
|---|---|