Shu-Liang (代术良) Dai
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17
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 ?
China
28,7%
Rank quotient ?This runner's calculation uses 17 eligible race(s): Σ(rank − 1) = 3 490; Σ finishers = 12 159. 3 490 / 12 159 × 100 = 28.70%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed17
Km — ultra races1 604 km
> 100 km5
> 160 km1
Longest race168,0 km
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
Wins & podiums (ultra)
🏆 Win0
🏆 Win M0
🏅 Top 31
🏅 Top 3 M1
Longest winning streak0
Current streak0
HISTORY
17 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 22/7/2022 | 6th Columbia 168 Ultra Trail Chongli Challenge Race | 168,00 | ×4 |
| ✓ 2 | 18/4/2025 | 7th Yunqiu Mountain Trail - UMY 100M | 159,20 | ×4 |
| ✓ 3 | 19/4/2024 | 6th Yunqiu Mountain Trail - UMY 100M | 143,70 | ×4 |
| ✓ 4 | 15/4/2023 | 9th Ninghai Ultra Trail - 100km | 109,60 | ×3 |
| ✓ 5 | 1/11/2025 | 10th Ultimate Tsaigu Trail Kuocang - 105 km | 105,00 | ×3 |
| ✓ 6 | 28/3/2026 | 1st Tri-Peaks 100 - By 520 Trail Runs | 100,00 | ×2 |
| ✓ 7 | 11/7/2025 | 9th Columbia 100 Ultra Trail Chongli Challenge Race | 100,00 | ×2 |
| ✓ 8 | 21/9/2024 | 2nd Great Wall 100 Trail Runs | 100,00 | ×2 |
| ✓ 9 | 20/10/2023 | 5th Yunqiu Mountain Trail - DMY 100K | 100,00 | ×2 |
| ✓ 10 | 14/8/2020 | 4th Columbia 100 Ultra Trail Chongli Challenge Race | 100,00 | ×2 |
| ✓ 11 | 2/11/2024 | 9th Ultimate Tsaigu Trail Kuocang - 105 km | 95,00 | ×2 |
| ✓ 12 | 2/11/2019 | 3rd Mogan Ultra 70km | 70,00 | ×2 |
| ✓ 13 | 17/5/2025 | 1st Ultra-Trail Great Wall by UTMB - 50K | 53,80 | ×1 |
| ✓ 14 | 14/10/2023 | 1st Great Wall 50 Trail Runs | 50,00 | ×1 |
| ✓ 15 | 11/5/2019 | 11th The North Face 50 China | 50,00 | ×1 |
| ✓ 16 | 22/4/2018 | 10th The North Face 50 China | 50,00 | ×1 |
| ✓ 17 | 19/11/2016 | 1st Fragrant Mountain Trail | 50,00 | ×1 |