Yoshinori (窪田喜徳) Kubota
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Born : 1976
Cat. M50 Ultrarunner since 2017
11
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
Japan6,5%
Rank quotient ?This runner's calculation uses 11 eligible race(s): Σ(rank − 1) = 502; Σ finishers = 7 726. 502 / 7 726 × 100 = 6.50%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed11
Km — ultra races731 km
> 100 km1
Longest race118,0 km
28th Fuji 5 Lakes 118 km Challenge — 22/4/2018
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road29,8%
Trail70,2%
Records
HISTORY
11 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2025 | ||||
| 11.05 | 51km | 6th FunTrails Round Minano |
7:04:05 h | 32 |
| 2024 | ||||
| 12.05 | 51km | 5th FunTrails Round Minano |
7:02:36 h | 40 |
| 2020 | ||||
| 06.09 | 50km | 13th OSJ Adatara Trail 50K |
7:32:23 h | 39 |
| 2019 | ||||
| 29.09 | 45km | 7th Trainic world Soto-Chichibu Trail Run 45km |
5:26:12 h | 7 |
| 01.09 | 50km | 12th OSJ Adatara Trail 50K |
9:37:16 h | 26 |
| 2018 | ||||
| 07.10 | 71.5km | 26th Hasetsune Cup - Japan Mountain Endurance Race |
11:09:47 h | 68 |
| 02.09 | 50km | 11th OSJ Adatara Trail 50K |
9:53:09 h | 23 |
| 24.06 | 72.7km | 5. Spatrail - Shima to Kusatsu |
10:48:23 h | 117 |
| 22.04 | 118km | 28th Fuji 5 Lakes 118 km Challenge |
11:09:54 h | 17 |
| 2017 | ||||
| 08.10 | 71.5km | 25th Hasetsune Cup - Japan Mountain Endurance Race |
11:12:36 h | 102 |
| 04.06 | 100km | 5th Tokyo Shibamata 100 km |
8:53:25 h | 42 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 22/4/2018 | 28th Fuji 5 Lakes 118 km Challenge | 118,00 | ×4 |
| ✓ 2 | 4/6/2017 | 5th Tokyo Shibamata 100 km | 100,00 | ×4 |
| ✓ 3 | 24/6/2018 | 5. Spatrail - Shima to Kusatsu | 72,70 | ×2 |
| ✓ 4 | 7/10/2018 | 26th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×2 |
| ✓ 5 | 8/10/2017 | 25th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×2 |
| ✓ 6 | 11/5/2025 | 6th FunTrails Round Minano | 51,00 | ×2 |
| ✓ 7 | 12/5/2024 | 5th FunTrails Round Minano | 51,00 | ×2 |
| ✓ 8 | 6/9/2020 | 13th OSJ Adatara Trail 50K | 50,00 | ×2 |
| ✓ 9 | 1/9/2019 | 12th OSJ Adatara Trail 50K | 50,00 | ×2 |
| ✓ 10 | 2/9/2018 | 11th OSJ Adatara Trail 50K | 50,00 | ×2 |
| ✓ 11 | 29/9/2019 | 7th Trainic world Soto-Chichibu Trail Run 45km | 45,00 | ×1 |