Zhi-Jian (张志坚) Zhang
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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.
27
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
34,7%
Rank quotient ?This runner's calculation uses 17 eligible race(s): Σ(rank − 1) = 2 246; Σ finishers = 6 478. 2 246 / 6 478 × 100 = 34.67%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed17
Km — ultra races1 026 km
Longest race100,0 km
5th GZ100 Guangzhou - 100 km Run — 9/1/2021
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
Records
HISTORY
17 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 9/1/2021 | 5th GZ100 Guangzhou - 100 km Run | 100,00 | ×3 |
| ✓ 2 | 12/9/2015 | 2nd Great Walker Beijing - 100 km | 96,00 | ×3 |
| ✓ 3 | 16/9/2024 | 4th Ultra Trail Shennongjia 70 km Salt Road Challenge | 70,00 | ×2 |
| ✓ 4 | 23/9/2023 | 5th Longji Ultra Trail Running Race - 66 km | 66,00 | ×2 |
| ✓ 5 | 17/1/2026 | 8th GZ100 Guangzhou - 60 km Run | 64,00 | ×2 |
| ✓ 6 | 20/1/2024 | 6th GZ100 Guangzhou - 60 km Run | 64,00 | ×2 |
| ✓ 7 | 7/9/2019 | 5th Trail Mt Wugong 56 km | 56,00 | ×2 |
| ✓ 8 | 5/3/2017 | 2nd Conghua CH50 | 55,80 | ×2 |
| ✓ 9 | 20/10/2019 | 1st Ultra Trail Huangpu | 53,00 | ×1 |
| ✓ 10 | 31/3/2018 | 3rd Conghua CH50 - 51 km Run | 51,00 | ×1 |
| ✓ 11 | 14/10/2023 | 1st Anshun Huangguoshu Waterfall 100 Ultra Trail Carnival | 50,00 | ×1 |
| ✓ 12 | 28/3/2021 | 1st TransCanton Baiyun 50 | 50,00 | ×1 |
| ✓ 13 | 24/10/2020 | 0st Guangzhou Baiyun 50 | 50,00 | ×1 |
| ✓ 14 | 3/6/2018 | 3rd Guangzhou longdong Trail 50 | 50,00 | ×1 |
| ✓ 15 | 14/5/2017 | 2nd Guangzhou longdong Trail 50 | 50,00 | ×1 |
| ✓ 16 | 6/11/2016 | Singwood Trailathon | 50,00 | ×1 |
| ✓ 17 | 14/3/2015 | 4th TransLantau 50 Ultra Trail | 50,00 | ×1 |