Akira (岡本聖) Okamoto
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Ultrarunner since 2023
6
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
25
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
Japan38,5%
Rank quotient ?This runner's calculation uses 6 eligible race(s): Σ(rank − 1) = 1 463; Σ finishers = 3 803. 1 463 / 3 803 × 100 = 38.47%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed6
Km — ultra races661 km
> 100 km1
> 160 km1
Longest race160,9 km
10th Lake Biwa Charity 100mi Walking Tournament — 19/10/2024
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road45,4%
Ult.Walk54,6%
Records
HISTORY
6 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2026 | ||||
| 03.05 | 100km | 8th Sunny Okayama 100km |
22:09:00 h | 299 |
| 2025 | ||||
| 01.11 | 100km | 1st BIWA100 Ultra Walk |
22:20:40 h | 242 |
| 03.05 | 100km | 7th Sunny Okayama 100km |
22:05:00 h | 316 |
| 2024 | ||||
| 19.10 | 100mi | 10th Lake Biwa Charity 100mi Walking Tournament |
24:06:16 h | 241 |
| 03.05 | 100km | 6th Sunny Okayama 100km |
21:02:33 h | 180 |
| 2023 | ||||
| 14.10 | 100km | 9th Lake Biwa Charity 100km Walking Tournament |
23:50:28 h | 191 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 19/10/2024 | 10th Lake Biwa Charity 100mi Walking Tournament | 160,93 | ×6 |
| ✓ 2 | 3/5/2026 | 8th Sunny Okayama 100km | 100,00 | ×4 |
| ✓ 3 | 1/11/2025 | 1st BIWA100 Ultra Walk | 100,00 | ×4 |
| ✓ 4 | 3/5/2025 | 7th Sunny Okayama 100km | 100,00 | ×4 |
| ✓ 5 | 3/5/2024 | 6th Sunny Okayama 100km | 100,00 | ×4 |
| ✓ 6 | 14/10/2023 | 9th Lake Biwa Charity 100km Walking Tournament | 100,00 | ×4 |