Wen-Feng (严文峰) Yan
External sources
Loading FFA
Loading MV
FFA diagnostics
Run “Search / refresh FFA” to see each season, HTTP response, candidate and DUV comparison.
MarathonView diagnostics
Run “Refresh MV” to see login, session validation and parser status.
Cached locally. Empty refreshes never erase the last valid snapshot.
7
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
18
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
44,7%
Rank quotient ?This runner's calculation uses 7 eligible race(s): Σ(rank − 1) = 310; Σ finishers = 694. 310 / 694 × 100 = 44.67%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed7
Km — ultra races406 km
Longest race70,0 km
3rd Daluoshan Trail Run 70K — 16/4/2017
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road12,3%
Trail87,7%
Records
HISTORY
7 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2022 | ||||
| 30.10 | 50km | 8:12:25 h | 48 | |
| 2020 | ||||
| 17.10 | 60km | 17:18:04 h | 47 | |
| 2019 | ||||
| 30.03 | 60km | 12:13:17 h | 24 | |
| 2018 | ||||
| 19.05 | 60km | 10:48:43 h | 31 | |
| 2017 | ||||
| 20.05 | 56km | 13:28:47 h | 88 | |
| 16.04 | 70km | 14:22:34 h | 35 | |
| 2016 | ||||
| 24.09 | 50km | 11:27:52 h | 44 | |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 16/4/2017 | 3rd Daluoshan Trail Run 70K | 70,00 | ×3 |
| ✓ 2 | 17/10/2020 | 2nd Jiangnan Skyrace- 55 km | 60,00 | ×3 |
| ✓ 3 | 30/3/2019 | 4th Jinhua Beishan Peak - 60 km | 60,00 | ×3 |
| ✓ 4 | 19/5/2018 | 1st Jiangnan 60 km Run | 60,00 | ×3 |
| ✓ 5 | 20/5/2017 | 4th Tianmu 7 Ultra Skymarathon | 56,00 | ×3 |
| ✓ 6 | 30/10/2022 | 1st Taishun Red Ancient Road Cross Country Race | 50,00 | ×2 |
| ✓ 7 | 24/9/2016 | 5th Jiwu Hangzhou 50K | 50,00 | ×2 |