Makiko (石黒麻起子) Ishiguro
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Born : 1976
Cat. W50 Ultrarunner since 2016
21
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
Japan47,4%
Rank quotient ?This runner's calculation uses 21 eligible race(s): Σ(rank − 1) = 5 003; Σ finishers = 10 555. 5 003 / 10 555 × 100 = 47.40%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed21
Km — ultra races2 025 km
> 100 km5
> 160 km3
Longest race200,0 km
16th Little Edo Oedo 200k — 14/3/2026
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road75,2%
Trail24,8%
HISTORY
21 race(s)| Runner | Races in common |
|---|---|