Hiroshi (岩井博) Iwai
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Born : 1949
Cat. M75 Ultrarunner since 2006
24
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
2
Countries visited ?Japan
Thailand
JapanThailand45,9%
Rank quotient ?This runner's calculation uses 24 eligible race(s): Σ(rank − 1) = 11 646; Σ finishers = 25 364. 11 646 / 25 364 × 100 = 45.92%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed24
Km — ultra races2 100 km
Longest race100,0 km
32. Lake Saroma 100 km Ultramarathon — 25/6/2017
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road81,0%
Trail19,0%
Records
HISTORY
24 race(s)| Runner | Races in common |
|---|---|