Na (杨娜) Yang
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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.
24
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
26,9%
Rank quotient ?This runner's calculation uses 12 eligible race(s): Σ(rank − 1) = 726; Σ finishers = 2 701. 726 / 2 701 × 100 = 26.88%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed12
Km — ultra races647 km
Longest race70,0 km
4th Yunnan Fengqing Ultra Trail 70km — 13/9/2025
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
Wins & podiums (ultra)
🏆 Win0
🏆 Win F2
🏅 Top 30
🏅 Top 3 F4
Longest winning streak0
Current streak0
Records
HISTORY
12 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 13/9/2025 | 4th Yunnan Fengqing Ultra Trail 70km | 70,00 | ×2 |
| ✓ 2 | 21/11/2020 | 6th Wuyishan Trail Race 60 km | 60,00 | ×2 |
| ✓ 3 | 6/1/2018 | 1st Maoming Dianbai 60km Trail Race | 60,00 | ×2 |
| ✓ 4 | 7/9/2019 | 5th Trail Mt Wugong 56 km | 56,00 | ×2 |
| ✓ 5 | 31/3/2018 | 3rd Conghua CH50 - 51 km Run | 51,00 | ×2 |
| ✓ 6 | 22/6/2025 | 1st Huayao Dai Charm - Ailao Mountain Sky Road Trail | 50,00 | ×2 |
| ✓ 7 | 2/6/2025 | 1st Trail Shambhala | 50,00 | ×2 |
| ✓ 8 | 14/12/2019 | 1st Gupo Mountain Ultra Trail - 50 km | 50,00 | ×2 |
| ✓ 9 | 22/9/2018 | 2nd Ultra Trail Challenge Bailidujuan 50 | 50,00 | ×2 |
| ✓ 10 | 26/11/2017 | 1st Heyuan Trail Run Race | 50,00 | ×2 |
| ✓ 11 | 28/10/2017 | 3rd Eco Trail Lijiang River Xingping | 50,00 | ×2 |
| ✓ 12 | 18/10/2015 | 3rd Ninghai Ultra Trail - 50km | 50,00 | ×2 |