Yuji (池田勇二) Ikeda
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14
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
26
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
49,7%
Rank quotient ?This runner's calculation uses 14 eligible race(s): Σ(rank − 1) = 1 724; Σ finishers = 3 468. 1 724 / 3 468 × 100 = 49.71%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed14
Km — ultra races904 km
> 100 km2
Longest race102,0 km
4th Miura-Halbinsel-Tour Ultra Walking — 5/4/2025
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road15,5%
Trail50,9%
Ult.Walk33,6%
Records
HISTORY
14 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 5/4/2025 | 4th Miura-Halbinsel-Tour Ultra Walking | 102,00 | ×3 |
| ✓ 2 | 27/4/2024 | 3rd Miura-Halbinsel-Tour Ultra Walking | 102,00 | ×3 |
| ✓ 3 | 29/6/2024 | 6th Hakone Kodo Ultra Walking | 100,00 | ×3 |
| ✓ 4 | 12/4/2014 | 9th Toda Saiko 70 km | 70,00 | ×2 |
| ✓ 5 | 13/4/2013 | 8th Toda Saiko 70 km | 70,00 | ×2 |
| ✓ 6 | 29/9/2019 | 7th Trainic world Soto-Chichibu Trail Run 50km | 53,00 | ×2 |
| ✓ 7 | 1/10/2023 | 10th Trainic world Soto-Chichibu Trail Run 50km | 52,00 | ×2 |
| ✓ 8 | 2/10/2022 | 9th Trainic world Soto-Chichibu Trail Run 50km | 52,00 | ×2 |
| ✓ 9 | 19/11/2016 | 2nd FunTrails50K Two Lakes&Green line | 52,00 | ×2 |
| ✓ 10 | 6/10/2024 | 12th Trainic world Ogose-Tokigawa Trail Run 50km | 51,40 | ×1 |
| ✓ 11 | 30/11/2025 | 12th Trainic world Soto-Chichibu Trail Run 50km | 50,00 | ×1 |
| ✓ 12 | 1/12/2024 | 11th Trainic world Soto-Chichibu Trail Run 50km | 50,00 | ×1 |
| ✓ 13 | 8/9/2018 | 6th Trainic world Soto-Chichibu Trail Run 50km | 49,80 | ×1 |
| ✓ 14 | 6/9/2015 | 4th Trainic world Ogose-Tokigawa Trail Run 50km | 49,60 | ×1 |