Yuan (周媛) Zhou
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12
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
23
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 ?
China
50,2%
Rank quotient ?This runner's calculation uses 12 eligible race(s): Σ(rank − 1) = 3 465; Σ finishers = 6 896. 3 465 / 6 896 × 100 = 50.25%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed12
Km — ultra races635 km
Longest race70,0 km
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
Records
HISTORY
12 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 13/7/2024 | 8th Columbia 70 Ultra Trail Chongli Challenge Race | 70,00 | ×3 |
| ✓ 2 | 20/1/2024 | 6th GZ100 Guangzhou - 60 km Run | 64,00 | ×2 |
| ✓ 3 | 28/3/2026 | 4th Huangshan huizhou trail race | 55,00 | ×2 |
| ✓ 4 | 13/4/2019 | 1st Maxi-Race China - Xixia 50km | 51,00 | ×2 |
| ✓ 5 | 26/10/2025 | 8th China 100 mountain cross - 50 km Ningbo | 50,00 | ×2 |
| ✓ 6 | 5/12/2020 | 4th China 100 mountain cross - 50 km Yangshuo | 50,00 | ×2 |
| ✓ 7 | 22/9/2019 | 5th Qinling 50k Trail | 50,00 | ×2 |
| ✓ 8 | 26/5/2018 | 6th Dali 50 Ultra Endurance Race | 50,00 | ×2 |
| ✓ 9 | 23/12/2017 | 1st Xtrail - Yunnan Weixin Trail Challenge | 50,00 | ×2 |
| ✓ 10 | 6/5/2017 | 2nd XTrail Wulong 50K | 50,00 | ×2 |
| ✓ 11 | 19/4/2025 | 7th Yunqiu Mountain Trail - MMY 50K | 48,30 | ×2 |
| ✓ 12 | 26/10/2019 | 2nd Taiping Lake UTTP 50 | 47,00 | ×2 |