Yaeko (横井八重子) Yokoi
Born : 1968 Cat. W55 Ultrarunner since 2016 JPN
22
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
36
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
55,1%
Rank quotient ?This runner's calculation uses 22 eligible race(s): Σ(rank − 1) = 5 718; Σ finishers = 10 385. 5 718 / 10 385 × 100 = 55.06%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed22
Km — ultra races1 830 km
> 100 km5
> 160 km2
> 24h2
Longest race167,0 km

Km per year (ultra races)

2022
150
2 races
2023
499
5 races
2024
167
1 race
2025
2026

Race types (share of distance)

Road23,6%
Trail76,4%

Wins & podiums (ultra)

🏆 Win0
🏆 Win F2
🏅 Top 30
🏅 Top 3 F6
Longest winning streak0
Current streak0