Ai-Yan (向爱燕) Xiang
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18
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
28
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
28,3%
Rank quotient ?This runner's calculation uses 18 eligible race(s): Σ(rank − 1) = 2 812; Σ finishers = 9 946. 2 812 / 9 946 × 100 = 28.27%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed18
Km — ultra races1 144 km
Longest race100,0 km
12th The North Face 100 China — 21/9/2024
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
Records
HISTORY
18 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 21/9/2024 | 12th The North Face 100 China | 100,00 | ×3 |
| ✓ 2 | 12/7/2019 | 3rd Columbia 100 Ultra Trail Chongli Challenge Race | 100,00 | ×3 |
| ✓ 3 | 11/5/2019 | 11th The North Face 100 China | 100,00 | ×3 |
| ✓ 4 | 6/10/2019 | 2nd Great Wall 100 Int. Trail | 99,00 | ×3 |
| ✓ 5 | 22/6/2024 | 1st Chicheng Ultra Trail 70km | 70,00 | ×2 |
| ✓ 6 | 7/11/2020 | 2nd Ultra Trail Mount Haituo - UTMH 70km | 70,00 | ×2 |
| ✓ 7 | 22/6/2025 | 10th Chongli Challenge | 55,00 | ×1 |
| ✓ 8 | 8/9/2018 | 5th Great Walker Beijing - 50 km | 50,30 | ×1 |
| ✓ 9 | 6/10/2024 | 2nd Ultra Trail XiaHuaYuan 50km | 50,00 | ×1 |
| ✓ 10 | 24/8/2024 | 5th Ultra Trail Mount Haituo - UTMH 50km | 50,00 | ×1 |
| ✓ 11 | 1/10/2022 | 1st BeiJing Xiangshan 50 Ultra Trail | 50,00 | ×1 |
| ✓ 12 | 21/12/2019 | 6th Phoenix Ridge Winter Trail Challenge | 50,00 | ×1 |
| ✓ 13 | 15/12/2019 | 1st Ultra Trail Mount Haituo | 50,00 | ×1 |
| ✓ 14 | 24/8/2019 | 1st Lingshan Cross-Country Race | 50,00 | ×1 |
| ✓ 15 | 31/3/2019 | 4th Jingxigudao Cyclo Cross | 50,00 | ×1 |
| ✓ 16 | 1/12/2018 | 3rd Fragrant Mountain Trail | 50,00 | ×1 |
| ✓ 17 | 3/12/2017 | 2nd Fragrant Mountain Trail | 50,00 | ×1 |
| ✓ 18 | 13/10/2019 | 6th Great Walker Beijing - 50 km | 49,80 | ×1 |