Jian-Jun (张建军) Zhang
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Born : 1972
Cat. M50 Ultrarunner since 2019
7
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
23
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
China40,8%
Rank quotient ?This runner's calculation uses 7 eligible race(s): Σ(rank − 1) = 1 385; Σ finishers = 3 391. 1 385 / 3 391 × 100 = 40.84%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed7
Km — ultra races635 km
> 100 km2
> 160 km1
Longest race162,0 km
9th Xihong Old Road Ultra Trail - 168 km Autumn — 15/11/2024
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
HISTORY
7 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2025 | ||||
| 01.11 | 105km | 10th Ultimate Tsaigu Trail Kuocang - 105 km |
26:50:32 h | 813 |
| 21.09 | 100km | 13th The North Face 100 China |
20:41:18 h | 116 |
| 06.07 | 70km | 6th Huanglong Ultra Trail - XBD 70 |
16:47:03 h | 36 |
| 2024 | ||||
| 15.11 | 162km | 9th Xihong Old Road Ultra Trail - 168 km Autumn |
40:18:32 h | 77 |
| 2023 | ||||
| 21.10 | 50.7km | 5th Yunqiu Mountain Trail - MMY 50K |
7:49:28 h | 130 |
| 2021 | ||||
| 09.01 | 100km | 5th GZ100 Guangzhou - 100 km Run |
19:31:11 h | 116 |
| 2019 | ||||
| 16.06 | 47km | 2nd TNF 100 Ultra Trail Challenge Qinling |
11:05:56 h | 104 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 15/11/2024 | 9th Xihong Old Road Ultra Trail - 168 km Autumn | 162,00 | ×7 |
| ✓ 2 | 1/11/2025 | 10th Ultimate Tsaigu Trail Kuocang - 105 km | 105,00 | ×4 |
| ✓ 3 | 21/9/2025 | 13th The North Face 100 China | 100,00 | ×4 |
| ✓ 4 | 9/1/2021 | 5th GZ100 Guangzhou - 100 km Run | 100,00 | ×4 |
| ✓ 5 | 6/7/2025 | 6th Huanglong Ultra Trail - XBD 70 | 70,00 | ×3 |
| ✓ 6 | 21/10/2023 | 5th Yunqiu Mountain Trail - MMY 50K | 50,70 | ×2 |
| ✓ 7 | 16/6/2019 | 2nd TNF 100 Ultra Trail Challenge Qinling | 47,00 | ×2 |