Katsutaka (山本勝隆) Yamamoto
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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.
33
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
24,0%
Rank quotient ?This runner's calculation uses 14 eligible race(s): Σ(rank − 1) = 1 296; Σ finishers = 5 403. 1 296 / 5 403 × 100 = 23.99%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed14
Km — ultra races1 292 km
> 100 km2
Longest race111,0 km
1st North Ontake Ultra — 13/10/2024
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road70,5%
Trail29,5%
HISTORY
14 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2026 | ||||
| 20.06 | 105km | 23:03:35 h | 379 | |
| 19.04 | 100km | 9:41:26 h | 12 | |
| 2025 | ||||
| 20.04 | 100km | 11:26:52 h | 59 | |
| 2024 | ||||
| 13.10 | 111km | 11:20:19 h | 8 | |
| 2023 | ||||
| 24.09 | 100km | 10:37:51 h | 29 | |
| 2019 | ||||
| 06.10 | 73km | 9:30:29 h | 9 | |
| 22.06 | 80km | 14:05:41 h | 56 | |
| 25.05 | 50km | 8:49:27 h | 73 | |
| 21.04 | 100km | 10:20:55 h | 41 | |
| 2018 | ||||
| 14.10 | 73km | 9:31:37 h | 27 | |
| 16.09 | 100km | 11:06:10 h | 169 | |
| 22.04 | 100km | 13:10:40 h | 272 | |
| 2017 | ||||
| 24.09 | 100km | 12:27:20 h | 59 | |
| 23.04 | 100km | 11:49:11 h | 117 | |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 13/10/2024 | 1st North Ontake Ultra | 111,00 | ×3 |
| ✓ 2 | 20/6/2026 | 2nd Kaga Spa by UTMB - Kaga Spa Trail Endurance100 | 105,00 | ×3 |
| ✓ 3 | 19/4/2026 | 17th 100 km Ultra Maranic Osaka | 100,00 | ×3 |
| ✓ 4 | 20/4/2025 | 16th 100 km Ultra Maranic Osaka | 100,00 | ×3 |
| ✓ 5 | 24/9/2023 | 26th Muraoka 100 km Ultra Marathon | 100,00 | ×3 |
| ✓ 6 | 21/4/2019 | 11th 100 km Ultra Maranic Osaka | 100,00 | ×3 |
| ✓ 7 | 16/9/2018 | 18th Tango 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 8 | 22/4/2018 | 10th 100 km Ultra Maranic Osaka | 100,00 | ×3 |
| ✓ 9 | 24/9/2017 | 20th Muraoka 100 km Ultra Marathon | 100,00 | ×3 |
| ✓ 10 | 23/4/2017 | 9th 100 km Ultra Maranic Osaka | 100,00 | ×3 |
| ✓ 11 | 22/6/2019 | 5th OSJ Yamanaka Onsen Trail Run | 80,00 | ×2 |
| ✓ 12 | 6/10/2019 | 5th Gasando Trail running race | 73,00 | ×2 |
| ✓ 13 | 14/10/2018 | 4th Gasando Trail running race | 73,00 | ×2 |
| ✓ 14 | 25/5/2019 | 5th Mt. Hiei Int. 50 km Trail Run | 50,00 | ×1 |