Satoshi (赤尾聡史) Akao
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17
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
33
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
56,6%
Rank quotient ?This runner's calculation uses 17 eligible race(s): Σ(rank − 1) = 3 584; Σ finishers = 6 335. 3 584 / 6 335 × 100 = 56.57%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed17
Km — ultra races1 409 km
> 100 km5
> 160 km1
Longest race167,0 km
8th Ultra-Trail Mt. Fuji (UTMF) — 21/4/2023
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road5,5%
Trail94,5%
Records
HISTORY
17 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 21/4/2023 | 8th Ultra-Trail Mt. Fuji (UTMF) | 167,00 | ×5 |
| ✓ 2 | 29/12/2021 | 2nd Kyoto Great Round | 130,00 | ×3 |
| ✓ 3 | 9/5/2026 | 4th Aso Volcano Trail | 114,00 | ×3 |
| ✓ 4 | 23/3/2024 | 2nd Hiroshima Wangan Trail Run | 109,00 | ×3 |
| ✓ 5 | 5/3/2022 | 1st Kumagawa Revival Trail | 101,00 | ×3 |
| ✓ 6 | 5/4/2025 | 7th Flash Trail Challenge 80km | 80,00 | ×2 |
| ✓ 7 | 25/3/2023 | 3rd Flash Trail Challenge 80km | 80,00 | ×2 |
| ✓ 8 | 22/5/2022 | 27th Saba Highway Ultramarathon | 77,00 | ×2 |
| ✓ 9 | 6/10/2019 | 5th Gasando Trail running race | 73,00 | ×2 |
| ✓ 10 | 3/5/2022 | 30. Mukogawa Yurikamome Ultra Marathon | 70,00 | ×2 |
| ✓ 11 | 2/5/2019 | 27. Mukogawa Yurikamome Ultra Marathon | 70,00 | ×2 |
| ✓ 12 | 17/7/2022 | 13th Nozawa Onsen 4100D Mountain Trail | 65,00 | ×1 |
| ✓ 13 | 7/9/2019 | 3rd Kyoto Grand Traverse | 65,00 | ×1 |
| ✓ 14 | 21/6/2025 | 1st Kaga Spa by UTMB - Kaga Spa Trail Endurance 50 | 58,00 | ×1 |
| ✓ 15 | 18/10/2020 | 7th Shigakogen Extreme Trail | 54,00 | ×1 |
| ✓ 16 | 25/4/2026 | 2nd Grand Diamond Trailrun | 48,00 | ×1 |
| ✓ 17 | 3/11/2019 | 3rd Ninja Trail Run | 48,00 | ×1 |