Yoshikazu (今井善一) Imai
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Born : 1958
Cat. M65 Ultrarunner since 2013
9
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
25
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
Japan56,9%
Rank quotient ?This runner's calculation uses 9 eligible race(s): Σ(rank − 1) = 3 837; Σ finishers = 6 746. 3 837 / 6 746 × 100 = 56.88%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed9
Km — ultra races787 km
Longest race100,0 km
14th Echigo Kubikino 100km Ultramarathon — 9/10/2022
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road100,0%
Records
HISTORY
9 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 9/10/2022 | 14th Echigo Kubikino 100km Ultramarathon | 100,00 | ×4 |
| ✓ 2 | 17/4/2022 | 32th Fuji 5 Lakes 100 km Challenge | 100,00 | ×4 |
| ✓ 3 | 24/4/2016 | 18. Okukumano 100 km Ultramarathon | 100,00 | ×4 |
| ✓ 4 | 20/9/2015 | 15th Tango 100 km Ultramarathon | 100,00 | ×4 |
| ✓ 5 | 7/6/2015 | 4th Hida Takayama 100 km Ultramarathon | 100,00 | ×4 |
| ✓ 6 | 8/6/2014 | 3rd Hida Takayama 100 km Ultramarathon | 100,00 | ×4 |
| ✓ 7 | 27/4/2014 | 16. Okukumano 65 km Ultramarathon | 65,00 | ×2 |
| ✓ 8 | 5/10/2014 | 3rd Noto Peninsula 60 km Ultra Marathon | 62,00 | ×2 |
| ✓ 9 | 20/10/2013 | 2nd Noto Peninsula 60 km Ultra Marathon | 60,00 | ×2 |