Yasuo (成瀬康夫) Naruse
Born : 1980 Cat. M45 Ultrarunner since 2011 JPN
24
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
31
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
2
Countries visited ?JPNJapanTHAThailand
4,2%
Rank quotient ?This runner's calculation uses 24 eligible race(s): Σ(rank − 1) = 331; Σ finishers = 7 963. 331 / 7 963 × 100 = 4.16%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed24
Km — ultra races1 376 km
Longest race80,0 km

Km per year (ultra races)

114
2 races
2022
206
3 races
2023
50
1 race
2024
112
2 races
2025
50
1 race
2026

Race types (share of distance)

Trail100,0%

Wins & podiums (ultra)

🏆 Win5
🏆 Win M6
🏅 Top 312
🏅 Top 3 M12
Longest winning streak2
Current streak0