Aki (浜崎安希) Hamasaki
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Born : 1961
Cat. W65 Ultrarunner since 2014
6
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
20
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
Japan58,8%
Rank quotient ?This runner's calculation uses 6 eligible race(s): Σ(rank − 1) = 1 232; Σ finishers = 2 096. 1 232 / 2 096 × 100 = 58.78%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed8
Km — ultra races498 km
> 100 km1
Longest race150,0 km
3rd Modern Japanese Silk Road Journey Run — 28/2/2026
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road59,0%
Stage41,0%
Records
No record for a classic ultra format
HISTORY
7 race(s) · 2 stage(s) nested| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2026 | ||||
| 28.02–01.03 | 150km/2stages | 3rd Modern Japanese Silk Road Journey Run |
24:24:25 h | 74 |
| 28.02 | 78.2km | 3rd Modern Japanese Silk Road Journey Run - Stage 1 | 11:38:26 h | 78 |
| 01.03 | 71.7km | 3rd Modern Japanese Silk Road Journey Run - Stage 2 | 12:45:59 h | 82 |
| 2025 | ||||
| 26.01 | 62km | 3. Minuma Challenge 60 |
8:44:00 h | 81 |
| 2024 | ||||
| 25.05 | 63km | 8th Yokosuka Miura 63km Michikusa Ultra Marathon A |
9:15:44 h | 123 |
| 17.03 | 54.2km | 12th Arakawa Riverside Journey Stage Race - Stage 2 |
8:29:54 h | 98 |
| 2022 | ||||
| 03.07 | 8h | 28th 8-Hour Endurance Race Tokorozawa |
49.000 km | 183 |
| 2017 | ||||
| 04.06 | 60km | 5th Tokyo Shibamata 60 km |
7:39:34 h | 471 |
| 2014 | ||||
| 01.06 | 60km | 2nd Tokyo Shibamata 60 km |
7:55:56 h | 306 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 28/2/2026 | 3rd Modern Japanese Silk Road Journey Run | 150,00 | ×7 |
| ✓ 2 | 25/5/2024 | 8th Yokosuka Miura 63km Michikusa Ultra Marathon A | 63,00 | ×3 |
| ✓ 3 | 26/1/2025 | 3. Minuma Challenge 60 | 62,00 | ×3 |
| ✓ 4 | 4/6/2017 | 5th Tokyo Shibamata 60 km | 60,00 | ×3 |
| ✓ 5 | 1/6/2014 | 2nd Tokyo Shibamata 60 km | 60,00 | ×3 |
| ✓ 6 | 3/7/2022 | 28th 8-Hour Endurance Race Tokorozawa | 49,00 | ×2 |