Mutsumi (御手洗睦) Mitarai
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Ultrarunner since 2023
2
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
12
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
Japan64,3%
Rank quotient ?This runner's calculation uses 2 eligible race(s): Σ(rank − 1) = 166; Σ finishers = 258. 166 / 258 × 100 = 64.34%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed2
Km — ultra races173 km
> 100 km1
Longest race125,0 km
7th Fujisan Issyu Walking — 10/6/2023
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road27,7%
Ult.Walk72,3%
Records
No record for a classic ultra format
HISTORY
2 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2024 | ||||
| 18.05 | 48km | 4th Lake Suwa Ultra Marathon - 48 km |
6:23:57 h | 22 |
| 2023 | ||||
| 10.06 | 125km | 7th Fujisan Issyu Walking |
28:25:38 h | 146 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 10/6/2023 | 7th Fujisan Issyu Walking | 125,00 | ×10 |
| ✓ 2 | 18/5/2024 | 4th Lake Suwa Ultra Marathon - 48 km | 48,00 | ×4 |