Toshiyuki (新井敏之) Arai
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Born : 1977
Cat. M45 Ultrarunner since 2015
20
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
39
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
Japan75,2%
Rank quotient ?This runner's calculation uses 20 eligible race(s): Σ(rank − 1) = 5 623; Σ finishers = 7 481. 5 623 / 7 481 × 100 = 75.16%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed21
Km — ultra races1 912 km
> 100 km4
> 160 km1
Longest race200,0 km
15th Little Edo Oedo 200k — 15/3/2025
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road90,2%
Trail2,6%
Stage7,2%
HISTORY
20 race(s) · 2 stage(s) nested| Runner | Races in common |
|---|---|