Toshiharu (鶴間俊春) Tsuruma
Born : 1963 Cat. M60 Ultrarunner since 2012 JPN
21
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
41
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
26,4%
Rank quotient ?This runner's calculation uses 21 eligible race(s): Σ(rank − 1) = 5 763; Σ finishers = 21 798. 5 763 / 21 798 × 100 = 26.44%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed21
Km — ultra races2 125 km
> 100 km6
> 160 km2
Longest race170,3 km

Km per year (ultra races)

2022
2023
2024
2025
2026

Race types (share of distance)

Road26,3%
Trail73,7%