Yasuko (西岡康子) Nishioka
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Born : 1975
Cat. W50 Ultrarunner since 2009
15
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
30
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
Japan52,9%
Rank quotient ?This runner's calculation uses 15 eligible race(s): Σ(rank − 1) = 3 914; Σ finishers = 7 397. 3 914 / 7 397 × 100 = 52.91%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed15
Km — ultra races1 045 km
Longest race100,0 km
1st Hida Takayama 100 km Ultramarathon — 10/6/2012
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road73,2%
Trail26,8%
Records
HISTORY
15 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 10/6/2012 | 1st Hida Takayama 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 2 | 18/9/2011 | 11th Tango 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 3 | 18/5/2014 | Saba Highway Ultramarathon | 77,00 | ×2 |
| ✓ 4 | 3/5/2017 | 25. Mukogawa Yurikamome Ultra Marathon | 70,00 | ×2 |
| ✓ 5 | 4/5/2015 | 27. Yamaguchi 100 Hagi-O-Kan Maranic 70 km | 70,00 | ×2 |
| ✓ 6 | 3/5/2014 | 22. Mukogawa Yurikamome Ultra Marathon | 70,00 | ×2 |
| ✓ 7 | 3/5/2013 | 21. Mukogawa Yurikamome Ultra Marathon | 70,00 | ×2 |
| ✓ 8 | 3/5/2012 | 20. Mukogawa Yurikamome Ultra Marathon | 70,00 | ×2 |
| ✓ 9 | 24/9/2017 | 20th Muraoka 66 km Ultra Marathon | 66,00 | ×2 |
| ✓ 10 | 27/9/2015 | 18th Muraoka 66 km Ultra Marathon | 66,00 | ×2 |
| ✓ 11 | 29/9/2013 | 16th Muraoka 66 km Ultra Marathon | 66,00 | ×2 |
| ✓ 12 | 19/9/2010 | 10th Tango 60 km Ultramarathon | 60,00 | ×2 |
| ✓ 13 | 20/9/2009 | 9th Tango 60 km Ultramarathon | 60,00 | ×2 |
| ✓ 14 | 11/9/2016 | 1st Koyasan and Ryujin-Onsen 50 km Ultra Marathon | 50,00 | ×1 |
| ✓ 15 | 21/9/2014 | 2nd 50 km Ultramarathon Hakusan-Shirakawago | 50,00 | ×1 |