Hiroyuki (万木弘之) Manki
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6
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
24
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
39,2%
Rank quotient ?This runner's calculation uses 6 eligible race(s): Σ(rank − 1) = 1 686; Σ finishers = 4 299. 1 686 / 4 299 × 100 = 39.22%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed6
Km — ultra races639 km
> 100 km3
Longest race118,0 km
28th Fuji 5 Lakes 118 km Challenge — 22/4/2018
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road100,0%
Records
HISTORY
6 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2025 | ||||
| 14.09 | 100km | 11:43:04 h | 265 | |
| 2024 | ||||
| 15.09 | 100km | 12:50:11 h | 360 | |
| 2023 | ||||
| 15.10 | 100km | 11:26:30 h | 293 | |
| 2018 | ||||
| 22.04 | 118km | 13:51:12 h | 192 | |
| 2017 | ||||
| 23.04 | 118km | 14:46:50 h | 533 | |
| 2016 | ||||
| 28.05 | 103km | 12:44:39 h | 49 | |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 22/4/2018 | 28th Fuji 5 Lakes 118 km Challenge | 118,00 | ×4 |
| ✓ 2 | 23/4/2017 | 27th Fuji 5 Lakes 118 km Challenge | 118,00 | ×4 |
| ✓ 3 | 28/5/2016 | 5th Tojinbo 103 km Ultramarathon | 103,00 | ×4 |
| ✓ 4 | 14/9/2025 | 23th Tango 100 km Ultramarathon | 100,00 | ×4 |
| ✓ 5 | 15/9/2024 | 22th Tango 100 km Ultramarathon | 100,00 | ×4 |
| ✓ 6 | 15/10/2023 | 29th River Shimanto 100km | 100,00 | ×4 |