Kazuhiro (西川和宏) Nishikawa
Born : 1981 Cat. M45 Ultrarunner since 2013 JPN
22
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
40
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 ?JPNJapan
24,6%
Rank quotient ?This runner's calculation uses 22 eligible race(s): Σ(rank − 1) = 1 768; Σ finishers = 7 186. 1 768 / 7 186 × 100 = 24.60%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed22
Km — ultra races2 109 km
> 100 km7
> 160 km3
> 200 km1
Longest race250,0 km

Km per year (ultra races)

2022
2023
77
1 race
2024
2025
2026

Race types (share of distance)

Road53,4%
Trail46,6%