Masachika (長谷川正近) Hasegawa
Born : 1954 Cat. M70 Ultrarunner since 2000 JPN
20
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
42
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
73,6%
Rank quotient ?This runner's calculation uses 20 eligible race(s): Σ(rank − 1) = 9 696; Σ finishers = 13 165. 9 696 / 13 165 × 100 = 73.65%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed20
Km — ultra races2 165 km
> 100 km4
> 160 km2
> 200 km2
Longest race255,0 km

Km per year (ultra races)

2022
2023
2024
2025
2026

Race types (share of distance)

Road74,2%
Trail25,8%