Tzu-Ping (張自萍) Chang
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.
14
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
1
Countries visited ?
Taiwan
74,2%
Rank quotient ?This runner's calculation uses 14 eligible race(s): Σ(rank − 1) = 4 954; Σ finishers = 6 673. 4 954 / 6 673 × 100 = 74.24%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed14
Km — ultra races713 km
Longest race55,0 km
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road100,0%
Records
HISTORY
14 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 16/2/2018 | 11th Tainan Branch Friendship Cup Chinese New Year Marathon | 55,00 | ×2 |
| ✓ 2 | 5/2/2019 | 12th Tainan Branch Friendship Cup Chinese New Year Marathon | 54,40 | ×2 |
| ✓ 3 | 25/1/2015 | 3rd Zhenxibao (Cinsbu) 54 km Ultramarathon | 54,00 | ×2 |
| ✓ 4 | 31/1/2014 | 7th Tainan Branch Friendship Cup Chinese New Year Marathon | 54,00 | ×2 |
| ✓ 5 | 25/3/2012 | 2nd National Taipei University 12H Ultra Marathon | 53,46 | ×2 |
| ✓ 6 | 28/1/2017 | 10th Tainan Branch Friendship Cup Chinese New Year Marathon | 51,80 | ×2 |
| ✓ 7 | 8/1/2023 | 9th Zhenxibao (Cinsbu) 50 km Ultramarathon | 50,00 | ×2 |
| ✓ 8 | 19/2/2015 | 8th Tainan Branch Friendship Cup Chinese New Year Marathon | 50,00 | ×2 |
| ✓ 9 | 17/11/2013 | 3rd Flex Power National 50K Track Taipei | 50,00 | ×2 |
| ✓ 10 | 18/8/2013 | 2nd Taitung Liji badland 50km Ultra Marathon | 50,00 | ×2 |
| ✓ 11 | 8/12/2012 | 2nd Hsinchu Bao-shan Second Reservoir Ultramarathon | 50,00 | ×2 |
| ✓ 12 | 3/4/2016 | 2nd Jhushan Ultramarathon | 48,00 | ×1 |
| ✓ 13 | 10/2/2013 | 6th Tainan Branch Friendship Cup Chinese New Year Marathon | 46,90 | ×1 |
| ✓ 14 | 12/3/2022 | 11th Southern Cross-Island Highway 45 km Ultra Marathon | 45,00 | ×1 |