Jun (山崎純) Yamazaki
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Born : 1984
Cat. M40 Ultrarunner since 2024
2
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
14
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
Japan17,8%
Rank quotient ?This runner's calculation uses 2 eligible race(s): Σ(rank − 1) = 539; Σ finishers = 3 025. 539 / 3 025 × 100 = 17.82%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed2
Km — ultra races200 km
Longest race100,0 km
6th Mine Akiyoshidai Geopark Ultra Marathon — 5/10/2025
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road100,0%
Records
HISTORY
2 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2025 | ||||
| 05.10 | 100km | 6th Mine Akiyoshidai Geopark Ultra Marathon |
13:49:16 h | 85 |
| 2024 | ||||
| 12.10 | 100km | 26th Yukihashi to Beppu 100 km |
18:41:08 h | 456 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 5/10/2025 | 6th Mine Akiyoshidai Geopark Ultra Marathon | 100,00 | ×7 |
| ✓ 2 | 12/10/2024 | 26th Yukihashi to Beppu 100 km | 100,00 | ×7 |