Osamu (杉山修) Sugiyama
External sources
Loading FFA
Loading MV
FFA diagnostics
Run “Search / refresh FFA” to see each season, HTTP response, candidate and DUV comparison.
MarathonView diagnostics
Run “Refresh MV” to see login, session validation and parser status.
Cached locally. Empty refreshes never erase the last valid snapshot.
Born : 1971
Cat. M55 Ultrarunner since 2015
56
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
79
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
2
Countries visited ?
GreeceJapan
GreeceJapan22,8%
Rank quotient ?This runner's calculation uses 58 eligible race(s): Σ(rank − 1) = 5 548; Σ finishers = 24 350. 5 548 / 24 350 × 100 = 22.78%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed59
Km — ultra races8 193 km
> 100 km34
> 160 km11
> 200 km6
> 24h2
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)
Road95,5%
Trail2,7%
Stage1,8%
Wins & podiums (ultra)
🏆 Win3
🏆 Win M3
🏅 Top 310
🏅 Top 3 M11
Longest winning streak1
Current streak1
HISTORY
58 race(s) · 2 stage(s) nested · 2 split(s) nested| Runner | Races in common |
|---|---|