Yasuo (大塚靖夫) Otsuka
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Ultrarunner since 2014
7
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
20
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
Japan21,5%
Rank quotient ?This runner's calculation uses 7 eligible race(s): Σ(rank − 1) = 463; Σ finishers = 2 153. 463 / 2 153 × 100 = 21.50%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed7
Km — ultra races502 km
> 24h1
Longest race100,0 km
4th Iki 100 km Ultra Marathon — 19/10/2019
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road100,0%
Records
HISTORY
7 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2019 | ||||
| 19.10 | 100km | 4th Iki 100 km Ultra Marathon |
11:15:34 h | 61 |
| 2018 | ||||
| 20.10 | 100km | 3rd Iki 100 km Ultra Marathon |
10:27:06 h | 44 |
| 2016 | ||||
| 06.08 | 24h | 16th 24-hour relay & solo marathon Kobe |
78.200 km | 80 |
| 27.03 | 56km | 14th Mt. Rocco Cannonball Run - 56 km Speed |
7:49:04 h | 158 |
| 2015 | ||||
| 18.10 | 56km | 13th Mt. Rocco Cannonball Run - 56 km Speed |
7:10:30 h | 36 |
| 2014 | ||||
| 25.10 | 56km | 11th Mt. Rocco Cannonball Run - 56 km Speed |
7:07:18 h | 29 |
| 30.03 | 56km | 10th Mt. Rocco Cannonball Run - 56 km Speed |
7:35:34 h | 62 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 19/10/2019 | 4th Iki 100 km Ultra Marathon | 100,00 | ×5 |
| ✓ 2 | 20/10/2018 | 3rd Iki 100 km Ultra Marathon | 100,00 | ×5 |
| ✓ 3 | 6/8/2016 | 16th 24-hour relay & solo marathon Kobe | 78,20 | ×3 |
| ✓ 4 | 27/3/2016 | 14th Mt. Rocco Cannonball Run - 56 km Speed | 56,00 | ×2 |
| ✓ 5 | 18/10/2015 | 13th Mt. Rocco Cannonball Run - 56 km Speed | 56,00 | ×2 |
| ✓ 6 | 25/10/2014 | 11th Mt. Rocco Cannonball Run - 56 km Speed | 56,00 | ×2 |
| ✓ 7 | 30/3/2014 | 10th Mt. Rocco Cannonball Run - 56 km Speed | 56,00 | ×2 |