Nao (小椋直) Ogura
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9
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
28
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
23,2%
Rank quotient ?This runner's calculation uses 9 eligible race(s): Σ(rank − 1) = 1 561; Σ finishers = 6 715. 1 561 / 6 715 × 100 = 23.25%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed9
Km — ultra races894 km
> 100 km4
Longest race120,0 km
35th Fuji 5 Lakes Sparta Challenge — 20/4/2025
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road94,4%
Trail5,6%
Records
HISTORY
9 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2025 | ||||
| 07.09 | 50km | 8:49:55 h | 178 | |
| 18.05 | 100km | 11:29:21 h | 199 | |
| 20.04 | 120km | 13:14:33 h | 133 | |
| 2024 | ||||
| 20.10 | 70km | 7:18:53 h | 88 | |
| 19.05 | 100km | 11:52:24 h | 232 | |
| 2023 | ||||
| 16.04 | 118km | 13:47:05 h | 154 | |
| 2022 | ||||
| 17.04 | 118km | 14:25:45 h | 281 | |
| 2019 | ||||
| 19.05 | 100km | 11:20:42 h | 242 | |
| 2018 | ||||
| 22.04 | 118km | 12:24:04 h | 63 | |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 20/4/2025 | 35th Fuji 5 Lakes Sparta Challenge | 120,00 | ×4 |
| ✓ 2 | 16/4/2023 | 33th Fuji 5 Lakes 118 km Challenge | 118,00 | ×4 |
| ✓ 3 | 17/4/2022 | 32th Fuji 5 Lakes 118 km Challenge | 118,00 | ×4 |
| ✓ 4 | 22/4/2018 | 28th Fuji 5 Lakes 118 km Challenge | 118,00 | ×4 |
| ✓ 5 | 18/5/2025 | 31th Yatsugatake Nobeyama 100 km | 100,00 | ×3 |
| ✓ 6 | 19/5/2024 | 30th Yatsugatake Nobeyama 100 km | 100,00 | ×3 |
| ✓ 7 | 19/5/2019 | 25th Yatsugatake Nobeyama 100 km | 100,00 | ×3 |
| ✓ 8 | 20/10/2024 | 31. Ultramarathon Okumusashi | 70,00 | ×2 |
| ✓ 9 | 7/9/2025 | 14th Hakuba Int. Trail Run | 50,00 | ×1 |