Masato Yokokura
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8
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
4
Countries visited ?
Austria
Belgium
Spain
France
79,2%
Rank quotient ?This runner's calculation uses 8 eligible race(s): Σ(rank − 1) = 4 293; Σ finishers = 5 418. 4 293 / 5 418 × 100 = 79.24%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed8
Km — ultra races887 km
> 100 km5
> 160 km1
Longest race174,0 km
23ème Ultra Trail Tour du Mont Blanc (UTMB) — 28/8/2026
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
Records
HISTORY
8 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2026 | ||||
| 28.08 | 174km | 44:42:28 h | 1543 | |
| 2025 | ||||
| 04.07 | 143km | 34:56:07 h | 432 | |
| 25.04 | 124km | 21:43:32 h | 166 | |
| 2024 | ||||
| 12.10 | 135km | 23:26:52 h | 78 | |
| 2023 | ||||
| 22.10 | 80.6km | 15:20:18 h | 1647 | |
| 2019 | ||||
| 13.07 | 68km | 9:45:36 h | 45 | |
| 15.06 | 112km | 20:32:29 h | 234 | |
| 2018 | ||||
| 14.07 | 50km | 7:04:55 h | 156 | |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 28/8/2026 | 23ème Ultra Trail Tour du Mont Blanc (UTMB) | 174,00 | ×6 |
| ✓ 2 | 4/7/2025 | Val d'Aran by UTMB - VDA (Torn dera Val d'Aran) | 143,00 | ×5 |
| ✓ 3 | 12/10/2024 | Grands Trails d'Auvergne - 360° Ultra-Trail | 135,00 | ×4 |
| ✓ 4 | 25/4/2025 | Grand Raid Ventoux by UTMB - 100M | 124,00 | ×4 |
| ✓ 5 | 15/6/2019 | 8. mozart 100 | 112,00 | ×4 |
| ✓ 6 | 22/10/2023 | 28ème Festival des Templiers - Le Grand Trail des Templiers | 80,60 | ×2 |
| ✓ 7 | 13/7/2019 | La Chouffe Trail 68km | 68,00 | ×2 |
| ✓ 8 | 14/7/2018 | La Chouffe Trail | 50,00 | ×1 |
