Naoji (荒澤尚司) Arasawa
Born : 1972 Cat. M50 Ultrarunner since 2014 JPN
18
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
33
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
30,6%
Rank quotient ?This runner's calculation uses 18 eligible race(s): Σ(rank − 1) = 2 236; Σ finishers = 7 314. 2 236 / 7 314 × 100 = 30.57%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed18
Km — ultra races1 419 km
> 100 km4
Longest race143,0 km

Km per year (ultra races)

2022
50
1 race
2023
141
2 races
2024
2025
65
1 race
2026

Race types (share of distance)

Trail100,0%

Records