Shigeru (長川茂) Nagakawa
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Born : 1962
Cat. M60 Ultrarunner since 2013
29
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
61
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
Japan75,7%
Rank quotient ?This runner's calculation uses 29 eligible race(s): Σ(rank − 1) = 8 530; Σ finishers = 11 262. 8 530 / 11 262 × 100 = 75.74%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed29
Km — ultra races4 498 km
> 100 km14
> 160 km9
> 200 km5
Longest race516,0 km
21st River Road Foot Race 516 km — 30/4/2026
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road96,0%
Trail4,0%
HISTORY
29 race(s)| Runner | Races in common |
|---|---|