Naoki (櫻井直樹) Sakurai
External sources
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Born : 1971
Cat. M55 Ultrarunner since 2011
26
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
1
Countries visited ?Japan
Japan25,9%
Rank quotient ?This runner's calculation uses 26 eligible race(s): Σ(rank − 1) = 3 525; Σ finishers = 13 636. 3 525 / 13 636 × 100 = 25.85%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed26
Km — ultra races2 236 km
> 100 km1
Longest race120,0 km
20th Muraoka 120 km Ultra Marathon — 24/9/2017
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road88,8%
Trail11,2%
Wins & podiums (ultra)
🏆 Win0
🏆 Win M0
🏅 Top 30
🏅 Top 3 M1
Longest winning streak0
Current streak0
Records
HISTORY
26 race(s)| Runner | Races in common |
|---|---|