Zhi-Jun (徐志军) Xu
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Born : 1980
Cat. M45 Ultrarunner since 2017
6
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
20
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
China32,5%
Rank quotient ?This runner's calculation uses 6 eligible race(s): Σ(rank − 1) = 614; Σ finishers = 1 892. 614 / 1 892 × 100 = 32.45%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed6
Km — ultra races492 km
> 100 km1
Longest race106,0 km
2nd Mountain Hard China - Guzhang 100 km — 1/6/2019
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
Records
HISTORY
6 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2025 | ||||
| 15.03 | 56km | 7th Xihong Old Road Ultra Trail - 60 Spring |
11:28:44 h | 336 |
| 2024 | ||||
| 28.09 | 60km | 2nd Mingyue Mountrain Ultra Trail |
14:43:07 h | 104 |
| 2019 | ||||
| 01.06 | 106km | 2nd Mountain Hard China - Guzhang 100 km |
23:53:35 h | 85 |
| 18.05 | 100km | 3rd Xiaoxiang 100 Trail - langshan |
20:39:30 h | 35 |
| 2018 | ||||
| 27.10 | 70km | 2nd Mogan Ultra 70km |
11:25:46 h | 46 |
| 2017 | ||||
| 08.07 | 100km | 2nd Taiyuan Ultra Trail - Dragon 100km |
17:25:06 h | 14 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 1/6/2019 | 2nd Mountain Hard China - Guzhang 100 km | 106,00 | ×5 |
| ✓ 2 | 18/5/2019 | 3rd Xiaoxiang 100 Trail - langshan | 100,00 | ×5 |
| ✓ 3 | 8/7/2017 | 2nd Taiyuan Ultra Trail - Dragon 100km | 100,00 | ×5 |
| ✓ 4 | 27/10/2018 | 2nd Mogan Ultra 70km | 70,00 | ×3 |
| ✓ 5 | 28/9/2024 | 2nd Mingyue Mountrain Ultra Trail | 60,00 | ×3 |
| ✓ 6 | 15/3/2025 | 7th Xihong Old Road Ultra Trail - 60 Spring | 56,00 | ×2 |