Hai-Liang (郑海良) Zheng
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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.
26
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
16,2%
Rank quotient ?This runner's calculation uses 11 eligible race(s): Σ(rank − 1) = 446; Σ finishers = 2 747. 446 / 2 747 × 100 = 16.24%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed11
Km — ultra races819 km
> 100 km1
> 160 km1
Longest race168,0 km
3rd HK168 - 168 km ultra-endurance race — 28/11/2015
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 M2
Longest winning streak0
Current streak0
HISTORY
11 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2019 | ||||
| 14.12 | 50km | 8:03:40 h | 21 | |
| 25.05 | 55.8km | 9:52:40 h | 36 | |
| 2018 | ||||
| 19.05 | 54km | 10:00:06 h | 98 | |
| 31.03 | 51km | 10:10:24 h | 18 | |
| 06.01 | 100km | 19:59:23 h | 36 | |
| 2017 | ||||
| 11.11 | 54km | 10:08:31 h | 4 | |
| 05.03 | 55.8km | 10:17:38 h | 31 | |
| 2016 | ||||
| 06.03 | 50km | 7:21:09 h | 11 | |
| 23.01 | 100km | 15:41:09 h | 181 | |
| 2015 | ||||
| 12.12 | 50mi | 15:54:24 h | 3 🥉 | |
| 28.11 | 168km | 35:20:29 h | 18 | |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 28/11/2015 | 3rd HK168 - 168 km ultra-endurance race | 168,00 | ×6 |
| ✓ 2 | 6/1/2018 | 1st Maoming Dianbai 100km Trail Race | 100,00 | ×3 |
| ✓ 3 | 23/1/2016 | 6th Hong Kong 100 Ultra Trail Race | 100,00 | ×3 |
| ✓ 4 | 12/12/2015 | 1st Ultra Trail Shenzhen 50 Miles (UTSZ) | 80,47 | ×3 |
| ✓ 5 | 25/5/2019 | 3rd GZ100 Guangzhou - 60km Run | 55,80 | ×2 |
| ✓ 6 | 5/3/2017 | 2nd Conghua CH50 | 55,80 | ×2 |
| ✓ 7 | 19/5/2018 | 1st luzhai zhongdu trail | 54,00 | ×2 |
| ✓ 8 | 11/11/2017 | 1st GZ100 Guangzhou - 54 km Run | 54,00 | ×2 |
| ✓ 9 | 31/3/2018 | 3rd Conghua CH50 - 51 km Run | 51,00 | ×1 |
| ✓ 10 | 14/12/2019 | 1st Gupo Mountain Ultra Trail - 50 km | 50,00 | ×1 |
| ✓ 11 | 6/3/2016 | 1st Conghua CH50 | 50,00 | ×1 |