Qi-Cai (杨奇财) Yang
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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.
30
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
12,5%
Rank quotient ?This runner's calculation uses 17 eligible race(s): Σ(rank − 1) = 1 371; Σ finishers = 10 995. 1 371 / 10 995 × 100 = 12.47%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed17
Km — ultra races1 225 km
> 100 km2
Longest race110,0 km
5th Ultimate Tsaigu Trail Kuocang - 110 km — 20/4/2019
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 | 20/4/2019 | 5th Ultimate Tsaigu Trail Kuocang - 110 km | 110,00 | ×3 |
| ✓ 2 | 15/4/2023 | 9th Ninghai Ultra Trail - 100km | 109,60 | ×3 |
| ✓ 3 | 22/11/2025 | 1st JiangZhe ZhiDian QianBa 100km | 100,00 | ×3 |
| ✓ 4 | 20/1/2024 | 14th Hong Kong 100 Ultra Trail Race | 100,00 | ×3 |
| ✓ 5 | 6/1/2018 | 1st Maoming Dianbai 100km Trail Race | 100,00 | ×3 |
| ✓ 6 | 16/4/2021 | 7th Jiangnan 100 Ultra Trail - 85km | 85,00 | ×2 |
| ✓ 7 | 27/10/2018 | 2nd Mogan Ultra 70km II | 70,00 | ×2 |
| ✓ 8 | 1/4/2023 | 8th Jinhua Beishan Peak - 65 km | 65,00 | ×2 |
| ✓ 9 | 8/11/2025 | 10th Wuyishan Trail Race 60 km | 60,00 | ×2 |
| ✓ 10 | 18/10/2025 | 11th Ninghai Ultra Trail - 50km | 60,00 | ×2 |
| ✓ 11 | 11/11/2023 | 1st Moganshan 100 Ultra Trail | 60,00 | ×2 |
| ✓ 12 | 3/12/2017 | 1st TNF 100 Ultra Trail Challenge Moganshan | 60,00 | ×2 |
| ✓ 13 | 1/11/2025 | 10th Ultimate Tsaigu Trail Kuocang - 50 km | 50,00 | ×1 |
| ✓ 14 | 14/4/2018 | 4th Jiangnan 100 Ultra Trail - 50km | 50,00 | ×1 |
| ✓ 15 | 27/3/2016 | 1st Jinhua Beishan Peak - 50 km | 50,00 | ×1 |
| ✓ 16 | 18/4/2015 | ANA Trail Series - Tianmu Seven | 50,00 | ×1 |
| ✓ 17 | 16/3/2024 | 6th Xihong Old Road Ultra Trail - 45 Spring | 45,00 | ×1 |