Yan (单妍) Shan
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.
12
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
25
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
2
Countries visited ?
China
Malaysia
57,4%
Rank quotient ?This runner's calculation uses 12 eligible race(s): Σ(rank − 1) = 4 352; Σ finishers = 7 582. 4 352 / 7 582 × 100 = 57.40%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed12
Km — ultra races666 km
Longest race100,0 km
5th GZ100 Guangzhou - 100 km Run — 9/1/2021
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
Records
HISTORY
12 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2026 | ||||
| 28.03 | 55km | 9:56:21 h | 895 | |
| 2025 | ||||
| 07.12 | 50km | 11:21:43 h | 79 | |
| 18.10 | 60km | 12:46:58 h | 1375 | |
| 2024 | ||||
| 09.11 | 50km | 11:51:47 h | 445 | |
| 16.03 | 50km | 10:40:51 h | 152 | |
| 2021 | ||||
| 09.01 | 100km | 24:46:41 h | 307 | |
| 2020 | ||||
| 05.12 | 50km | 9:35:15 h | 77 | |
| 24.10 | 50km | 10:18:35 h | 50 | |
| 2019 | ||||
| 15.09 | 50km | 11:24:57 h | 118 | |
| 2018 | ||||
| 22.04 | 50km | 9:23:39 h | 597 | |
| 31.03 | 51km | 14:43:56 h | 199 | |
| 2017 | ||||
| 26.11 | 50km | 8:09:16 h | 70 | |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 9/1/2021 | 5th GZ100 Guangzhou - 100 km Run | 100,00 | ×4 |
| ✓ 2 | 18/10/2025 | 11th Ninghai Ultra Trail - 50km | 60,00 | ×2 |
| ✓ 3 | 28/3/2026 | 4th Huangshan huizhou trail race | 55,00 | ×2 |
| ✓ 4 | 31/3/2018 | 3rd Conghua CH50 - 51 km Run | 51,00 | ×2 |
| ✓ 5 | 7/12/2025 | 3rd TransCanton Baiyun 50 | 50,00 | ×2 |
| ✓ 6 | 9/11/2024 | 7th Conghua CH50 - 50 km Run | 50,00 | ×2 |
| ✓ 7 | 16/3/2024 | 2nd TransCanton Baiyun 50 | 50,00 | ×2 |
| ✓ 8 | 5/12/2020 | 1st Trans Canton - Guangzhou | 50,00 | ×2 |
| ✓ 9 | 24/10/2020 | 0st Guangzhou Baiyun 50 | 50,00 | ×2 |
| ✓ 10 | 15/9/2019 | 9th The Most Beautiful Thing (TMBT) 50 km Ultra Trail Marathon | 50,00 | ×2 |
| ✓ 11 | 22/4/2018 | 10th The North Face 50 China | 50,00 | ×2 |
| ✓ 12 | 26/11/2017 | 1st Heyuan Trail Run Race | 50,00 | ×2 |