Masaki (松葉正樹) Matsuba
Born : 1966 Cat. M60 Ultrarunner since 2010 JPN
18
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
35
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 ?ITAItalyJPNJapan
22,6%
Rank quotient ?This runner's calculation uses 18 eligible race(s): Σ(rank − 1) = 3 239; Σ finishers = 14 325. 3 239 / 14 325 × 100 = 22.61%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed19
Km — ultra races1 468 km
> 100 km5
Longest race120,0 km

Km per year (ultra races)

2022
2023
2024
2025
2026

Race types (share of distance)

Trail93,2%
Stage6,8%

Wins & podiums (ultra)

🏆 Win0
🏆 Win M0
🏅 Top 31
🏅 Top 3 M1
Longest winning streak0
Current streak0