Masahiko (西川雅彦) Nishikawa
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Born : 1968
Cat. M55 Ultrarunner since 2013
20
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
Japan45,2%
Rank quotient ?This runner's calculation uses 20 eligible race(s): Σ(rank − 1) = 4 138; Σ finishers = 9 157. 4 138 / 9 157 × 100 = 45.19%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed20
Km — ultra races1 682 km
> 100 km4
Longest race112,0 km
19th Mt. Rocco Cannonball Run - 112 km Power — 20/10/2018
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road51,2%
Trail48,8%
Records
HISTORY
20 race(s)| Runner | Races in common |
|---|---|