Chun (徐春) Xu
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Born : 1975
Cat. W50 Ultrarunner since 2017
7
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
22
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
China65,7%
Rank quotient ?This runner's calculation uses 7 eligible race(s): Σ(rank − 1) = 1 057; Σ finishers = 1 610. 1 057 / 1 610 × 100 = 65.65%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed7
Km — ultra races573 km
> 100 km2
Longest race120,0 km
3rd MGD120 Ultramarathon — 3/10/2018
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
Wins & podiums (ultra)
🏆 Win0
🏆 Win F0
🏅 Top 30
🏅 Top 3 F1
Longest winning streak0
Current streak0
HISTORY
7 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2025 | ||||
| 26.07 | 80km | 1st Ultra Trail Mt. Liupan |
18:00:37 h | 101 |
| 2024 | ||||
| 18.05 | 50km | 1st Shudao Qingniling Mountain Challenge |
10:08:01 h | 139 |
| 2023 | ||||
| 07.07 | 100km | 7th Columbia 100 Ultra Trail Chongli Challenge Race |
26:10:57 h | 559 |
| 2019 | ||||
| 30.11 | 111.1km | 1st Chengdu Trail 100+ Challenge - Tuoxia Gorge |
28:39:34 h | 159 |
| 27.07 | 60km | 3rd X Trail - Gangshika 60 km |
9:42:06 h | 65 |
| 2018 | ||||
| 03.10 | 120km | 3rd MGD120 Ultramarathon |
24:00:41 h | 21 |
| 2017 | ||||
| 15.07 | 52km | 2nd Transqilian Run 52km |
9:06:56 h | 20 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 3/10/2018 | 3rd MGD120 Ultramarathon | 120,00 | ×5 |
| ✓ 2 | 30/11/2019 | 1st Chengdu Trail 100+ Challenge - Tuoxia Gorge | 111,10 | ×5 |
| ✓ 3 | 7/7/2023 | 7th Columbia 100 Ultra Trail Chongli Challenge Race | 100,00 | ×4 |
| ✓ 4 | 26/7/2025 | 1st Ultra Trail Mt. Liupan | 80,00 | ×3 |
| ✓ 5 | 27/7/2019 | 3rd X Trail - Gangshika 60 km | 60,00 | ×2 |
| ✓ 6 | 15/7/2017 | 2nd Transqilian Run 52km | 52,00 | ×2 |
| ✓ 7 | 18/5/2024 | 1st Shudao Qingniling Mountain Challenge | 50,00 | ×2 |