Masao (福原正夫) Fukuhara
External sources
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Born : 1957
Cat. M65 Ultrarunner since 2010
18
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
36
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
Japan27,9%
Rank quotient ?This runner's calculation uses 18 eligible race(s): Σ(rank − 1) = 4 006; Σ finishers = 14 379. 4 006 / 14 379 × 100 = 27.86%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed18
Km — ultra races1 700 km
> 100 km7
> 160 km2
Longest race170,3 km
4th Ultra-Trail Mt. Fuji (UTMF) — 25/9/2015
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
Records
HISTORY
18 race(s)| Runner | Races in common |
|---|---|