Yun-Feng (李云峰) Li
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Born : 1989
Cat. M35 Ultrarunner since 2024
4
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
China16,1%
Rank quotient ?This runner's calculation uses 4 eligible race(s): Σ(rank − 1) = 174; Σ finishers = 1 081. 174 / 1 081 × 100 = 16.10%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed4
Km — ultra races416 km
> 100 km1
Longest race116,0 km
7th Yangxian Trail Challenge - 110km — 8/11/2025
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
Records
HISTORY
4 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2025 | ||||
| 08.11 | 116km | 7th Yangxian Trail Challenge - 110km |
20:24:02 h | 33 |
| 31.05 | 100km | 3rd Weihai Ultra Trail 100km |
14:46:14 h | 26 |
| 2024 | ||||
| 23.11 | 100km | 2nd Suzhou 100 Urban Ultra Trail |
17:08:11 h | 22 |
| 26.10 | 100km | 2nd Moganshan 100 Ultra Trail |
23:22:51 h | 97 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 8/11/2025 | 7th Yangxian Trail Challenge - 110km | 116,00 | ×5 |
| ✓ 2 | 31/5/2025 | 3rd Weihai Ultra Trail 100km | 100,00 | ×5 |
| ✓ 3 | 23/11/2024 | 2nd Suzhou 100 Urban Ultra Trail | 100,00 | ×5 |
| ✓ 4 | 26/10/2024 | 2nd Moganshan 100 Ultra Trail | 100,00 | ×5 |