Hiroko (吉岡仁子) Yoshioka
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16
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
2
Countries visited ?
Japan
Taiwan
62,2%
Rank quotient ?This runner's calculation uses 16 eligible race(s): Σ(rank − 1) = 4 799; Σ finishers = 7 719. 4 799 / 7 719 × 100 = 62.17%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed16
Km — ultra races1 544 km
> 100 km3
> 24h2
Longest race155,6 km
12th Taipei 24hr Ultra Marathon — 11/2/2023
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road100,0%
Wins & podiums (ultra)
🏆 Win0
🏆 Win F1
🏅 Top 31
🏅 Top 3 F2
Longest winning streak0
Current streak0
HISTORY
16 race(s) · 4 split(s) nested| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 11/2/2023 | 12th Taipei 24hr Ultra Marathon | 155,61 | ×4 |
| ✓ 2 | 7/2/2026 | 15th Taipei 24hr Ultra Marathon | 154,14 | ×4 |
| ✓ 3 | 29/10/2022 | 3rd Shodoshima Round Ultra Run | 104,00 | ×3 |
| ✓ 4 | 21/6/2026 | 19. Okinoshima 100km Ultra Marathon | 100,00 | ×3 |
| ✓ 5 | 16/6/2024 | 17. Okinoshima 100km Ultra Marathon | 100,00 | ×3 |
| ✓ 6 | 18/6/2023 | 16. Okinoshima 100km Ultra Marathon | 100,00 | ×3 |
| ✓ 7 | 23/4/2023 | 23. Okukumano 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 8 | 18/9/2022 | 20th Tango 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 9 | 19/1/2020 | 30th Miyako 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 10 | 20/10/2019 | 25th River Shimanto 100km | 100,00 | ×3 |
| ✓ 11 | 24/6/2018 | 33. Lake Saroma 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 12 | 28/4/2019 | 21. Okukumano 80 km Ultramarathon | 80,00 | ×2 |
| ✓ 13 | 21/4/2024 | 24. Okukumano 65 km Ultramarathon | 65,00 | ×1 |
| ✓ 14 | 22/4/2018 | 20. Okukumano 65 km Ultramarathon | 65,00 | ×1 |
| ✓ 15 | 15/9/2019 | 19th Tango 60 km Ultramarathon | 60,00 | ×1 |
| ✓ 16 | 15/10/2017 | 23rd River Shimanto 60km | 60,00 | ×1 |