Kenji (矢嶋謙二) Yashima
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Ultrarunner since 2024
3
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
17
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
Japan47,7%
Rank quotient ?This runner's calculation uses 3 eligible race(s): Σ(rank − 1) = 222; Σ finishers = 465. 222 / 465 × 100 = 47.74%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed3
Km — ultra races311 km
> 100 km3
Longest race105,0 km
4th Nihondaira and Suruganokuni Ultra Run — 13/7/2024
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road33,8%
Ult.Walk66,2%
Records
No record for a classic ultra format
HISTORY
3 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2025 | ||||
| 19.04 | 104km | 2nd Osaka Ultra Walking |
23:02:28 h | 50 |
| 11.01 | 102km | 2nd Nara Mahoroba Ultra Walking |
23:23:38 h | 126 |
| 2024 | ||||
| 13.07 | 105km | 4th Nihondaira and Suruganokuni Ultra Run |
24:51:32 h | 49 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 13/7/2024 | 4th Nihondaira and Suruganokuni Ultra Run | 105,00 | ×6 |
| ✓ 2 | 19/4/2025 | 2nd Osaka Ultra Walking | 104,00 | ×6 |
| ✓ 3 | 11/1/2025 | 2nd Nara Mahoroba Ultra Walking | 102,00 | ×6 |