Masatomo (岩原正知) Iwahara
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Born : 1980
Cat. M45 Ultrarunner since 2012
23
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
38
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
Japan4,7%
Rank quotient ?This runner's calculation uses 23 eligible race(s): Σ(rank − 1) = 678; Σ finishers = 14 566. 678 / 14 566 × 100 = 4.65%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed23
Km — ultra races1 982 km
> 100 km1
> 160 km1
> 24h1
Longest race170,0 km
1st Japan Trophy 24h — 17/7/2021
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road100,0%
Wins & podiums (ultra)
🏆 Win1
🏆 Win M1
🏅 Top 34
🏅 Top 3 M4
Longest winning streak1
Current streak0
HISTORY
23 race(s)| Runner | Races in common |
|---|---|