Masatoshi (高尾政利) Takao
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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.
24
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
89,0%
Rank quotient ?This runner's calculation uses 9 eligible race(s): Σ(rank − 1) = 3 822; Σ finishers = 4 292. 3 822 / 4 292 × 100 = 89.05%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed9
Km — ultra races626 km
> 100 km1
Longest race106,5 km
14th OSJ Ontake 100km Ultra Trail — 16/7/2022
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road16,0%
Trail84,0%
Records
HISTORY
9 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2025 | ||||
| 20.07 | 99.5km | 18:04:04 h | 753 | |
| 2023 | ||||
| 10.06 | 50km | 10:24:54 h | 260 | |
| 09.04 | 51.4km | 9:45:59 h | 262 | |
| 2022 | ||||
| 06.11 | 50km | 11:30:41 h | 51 | |
| 16.07 | 106.5km | 19:36:33 h | 727 | |
| 2020 | ||||
| 08.02 | 50km | 7:36:52 h | 76 | |
| 2019 | ||||
| 02.06 | 51.2km | 12:43:36 h | 124 | |
| 2018 | ||||
| 21.10 | 100km | 13:49:14 h | 1219 | |
| 2017 | ||||
| 23.07 | 67.5km | 13:54:57 h | 359 | |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 16/7/2022 | 14th OSJ Ontake 100km Ultra Trail | 106,50 | ×4 |
| ✓ 2 | 21/10/2018 | 24th River Shimanto 100km | 100,00 | ×4 |
| ✓ 3 | 20/7/2025 | 17th OSJ Ontake 100km Ultra Trail | 99,50 | ×4 |
| ✓ 4 | 23/7/2017 | 5th Kirishima Ebino-kougen Extreme Trail | 67,50 | ×2 |
| ✓ 5 | 9/4/2023 | 1st AYABE Trailrun | 51,40 | ×2 |
| ✓ 6 | 2/6/2019 | 4th Rokko 5 Peaks Trail Race | 51,20 | ×2 |
| ✓ 7 | 10/6/2023 | 3rd Okushinano 100 - 50 km | 50,00 | ×2 |
| ✓ 8 | 6/11/2022 | 4th Saioto Colors | 50,00 | ×2 |
| ✓ 9 | 8/2/2020 | 11th OSJ Jungle Trail 50K Amami | 50,00 | ×2 |