Koseki, Masamune
JapanManBorn 19862023 – 2026Runner id 2010506
Events
4
2023 – 2026
Best pace
11.317
km/h · 2023
Best finish
27th
of 717 · 2025
Distance raced
350
km · splits not double-counted
Pace over time
km/h · higher is faster
Pace over time: 4 races from 2023 to 2026, ranging from 8.82 to 11.42 kilometres per hour, where higher is faster. A second, age-graded series is drawn above it; the gap between the two is the age credit.
- Actual pace
- Age-graded pace
Results
| Date | Event | Distance | Result | Pace km/h | Placing |
|---|---|---|---|---|---|
| 2023-06-11 | 50km | 4:25:05 h | 11.317 | 13/162 | |
| 2024-06-09 | 100km | 11:20:00 h | 8.824 | 185/757 | |
| 2025-06-08 | 100km | 9:14:05 h | 10.829 | 27/717 | |
| 2026-06-14 | 100km | 10:22:01 h | 9.646 | 112/733 |