Yoshinori (奥村良徳) Okumura
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18
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
35
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
21,5%
Rank quotient ?This runner's calculation uses 18 eligible race(s): Σ(rank − 1) = 2 794; Σ finishers = 12 973. 2 794 / 12 973 × 100 = 21.54%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed18
Km — ultra races1 490 km
> 100 km2
> 160 km1
Longest race170,3 km
4th Ultra-Trail Mt. Fuji (UTMF) — 25/9/2015
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road25,3%
Trail74,7%
Records
HISTORY
18 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 25/9/2015 | 4th Ultra-Trail Mt. Fuji (UTMF) | 170,30 | ×4 |
| ✓ 2 | 12/5/2018 | 2nd Aso Round Trail | 108,70 | ×3 |
| ✓ 3 | 31/5/2026 | 1st Nara Ultra Marathon | 100,00 | ×2 |
| ✓ 4 | 19/4/2026 | 17th 100 km Ultra Maranic Osaka | 100,00 | ×2 |
| ✓ 5 | 20/4/2025 | 16th 100 km Ultra Maranic Osaka | 100,00 | ×2 |
| ✓ 6 | 26/4/2014 | 3rd Shizuoka to Yamanashi (STY) | 88,00 | ×2 |
| ✓ 7 | 18/5/2025 | 30th Saba Highway Ultramarathon | 77,00 | ×2 |
| ✓ 8 | 12/10/2025 | 33th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×2 |
| ✓ 9 | 8/10/2017 | 25th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×2 |
| ✓ 10 | 7/10/2012 | 20th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×2 |
| ✓ 11 | 20/10/2013 | 4th OSJ Hyonosen Mountains Trail Race | 71,00 | ×2 |
| ✓ 12 | 23/4/2017 | 3rd Okumikawa Power Trail | 70,00 | ×2 |
| ✓ 13 | 3/5/2016 | 24. Mukogawa Yurikamome Ultra Marathon | 70,00 | ×2 |
| ✓ 14 | 24/4/2016 | 2nd Okumikawa Power Trail | 70,00 | ×2 |
| ✓ 15 | 3/5/2012 | 20. Mukogawa Yurikamome Ultra Marathon | 70,00 | ×2 |
| ✓ 16 | 3/5/2011 | 19. Mukogawa Yurikamome Ultra Marathon | 70,00 | ×2 |
| ✓ 17 | 19/6/2022 | 9th Fairy Trail - Super Long | 60,00 | ×1 |
| ✓ 18 | 30/5/2015 | 1st Mt. Hiei Int. 50 km Trail Run | 50,00 | ×1 |