Kenichi (丸山健一) Maruyama
Born : 1973 Cat. M50 Ultrarunner since 2017 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
4
Countries visited ?AUSAustraliaJPNJapanTHAThailandUSAUnited States
51,2%
Rank quotient ?This runner's calculation uses 22 eligible race(s): Σ(rank − 1) = 5 655; Σ finishers = 11 054. 5 655 / 11 054 × 100 = 51.16%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed22
Km — ultra races2 066 km
> 100 km8
> 160 km2
Longest race167,0 km

Km per year (ultra races)

149
2 races
2022
328
3 races
2023
392
4 races
2024
350
4 races
2025
2026

Race types (share of distance)

Road4,8%
Trail95,2%