Yumiko (大塚由美子) Otsuka
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Born : 1968
Cat. W55 Ultrarunner since 2015
23
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
50
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
Japan71,8%
Rank quotient ?This runner's calculation uses 23 eligible race(s): Σ(rank − 1) = 6 734; Σ finishers = 9 378. 6 734 / 9 378 × 100 = 71.81%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed25
Km — ultra races3 078 km
> 100 km16
> 160 km4
> 200 km2
Longest race251,0 km
18th River Road Foot Race 251 km — 3/5/2023
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road88,6%
Trail2,3%
Stage9,1%
Records
HISTORY
23 race(s) · 4 stage(s) nested| Runner | Races in common |
|---|---|