Tadashi (伊澤忠支) Isawa
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Born : 1964
Cat. M60 Ultrarunner since 2012
46
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
68
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
2
Countries visited ?Japan
Taiwan
JapanTaiwan38,3%
Rank quotient ?This runner's calculation uses 48 eligible race(s): Σ(rank − 1) = 7 445; Σ finishers = 19 446. 7 445 / 19 446 × 100 = 38.29%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed48
Km — ultra races6 662 km
> 100 km22
> 160 km16
> 200 km9
> 24h2
Longest race514,0 km
14th River Road Foot Race 514 km — 30/4/2018
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road72,0%
Trail28,0%
HISTORY
48 race(s) · 9 split(s) nested| Runner | Races in common |
|---|---|