Zhi-Zhang (陈志章) Chen
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11
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
32
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 ?
China
Hong Kong
32,0%
Rank quotient ?This runner's calculation uses 11 eligible race(s): Σ(rank − 1) = 979; Σ finishers = 3 058. 979 / 3 058 × 100 = 32.01%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed11
Km — ultra races1 174 km
> 100 km2
> 160 km2
> 200 km1
Longest race333,0 km
2nd Mt. Wumeng Ultra Trail 333km — 11/8/2018
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road8,5%
Trail91,5%
Wins & podiums (ultra)
🏆 Win0
🏆 Win M0
🏅 Top 31
🏅 Top 3 M1
Longest winning streak0
Current streak0
Records
HISTORY
11 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 11/8/2018 | 2nd Mt. Wumeng Ultra Trail 333km | 333,00 | ×10 |
| ✓ 2 | 28/11/2015 | 3rd HK168 - 168 km ultra-endurance race | 168,00 | ×5 |
| ✓ 3 | 22/9/2018 | 2nd Ultra Trail Challenge Bailidujuan 100 | 100,00 | ×3 |
| ✓ 4 | 27/1/2018 | 8th Hong Kong 100 Ultra Trail Race | 100,00 | ×3 |
| ✓ 5 | 14/10/2017 | 5th Ninghai Ultra Trail - 100km | 100,00 | ×3 |
| ✓ 6 | 28/8/2016 | Tianshan Giant (TSG) 100 km Ultra Marathon | 100,00 | ×3 |
| ✓ 7 | 26/10/2025 | 1st Xinyi Trail Running Race | 60,00 | ×1 |
| ✓ 8 | 31/3/2018 | 3rd Conghua CH50 - 57 km Run | 57,00 | ×1 |
| ✓ 9 | 11/11/2017 | 1st GZ100 Guangzhou - 54 km Run | 54,00 | ×1 |
| ✓ 10 | 2/11/2019 | 5th Ultra Trail Mt Siguniang 50 km | 51,70 | ×1 |
| ✓ 11 | 16/12/2017 | 5th The North Face 50 Hong Kong | 50,00 | ×1 |