Hiroyuki (斎藤広幸) Saito
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Born : 1967
Cat. M55 Ultrarunner since 2014
51
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
75
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
Japan78,6%
Rank quotient ?This runner's calculation uses 53 eligible race(s): Σ(rank − 1) = 13 591; Σ finishers = 17 295. 13 591 / 17 295 × 100 = 78.58%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed57
Km — ultra races7 946 km
> 100 km31
> 160 km13
> 200 km8
> 24h4
> 48h1
Longest race516,0 km
21st River Road Foot Race 516 km — 30/4/2026
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road70,2%
Trail21,4%
Stage7,2%
Ult.Walk1,3%
Wins & podiums (ultra)
🏆 Win0
🏆 Win M0
🏅 Top 31
🏅 Top 3 M2
Longest winning streak0
Current streak0
HISTORY
53 race(s) · 6 stage(s) nested| Runner | Races in common |
|---|---|