Tzu-Li (張自立) 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.
12
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 ?
Taiwan
13,0%
Rank quotient ?This runner's calculation uses 12 eligible race(s): Σ(rank − 1) = 145; Σ finishers = 1 119. 145 / 1 119 × 100 = 12.96%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed12
Km — ultra races647 km
Longest race100,0 km
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road67,0%
Trail33,0%
Wins & podiums (ultra)
🏆 Win0
🏆 Win M0
🏅 Top 30
🏅 Top 3 M1
Longest winning streak0
Current streak0
Records
HISTORY
12 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 7/3/2015 | 5th Southern Cross-Island Highway 100 km Ultra Marathon | 100,00 | ×4 |
| ✓ 2 | 9/12/2018 | 3rd Dragon, Tiger, Phoenix Trail 60 km | 59,50 | ×2 |
| ✓ 3 | 17/8/2019 | 2nd 800 Heroes - Leisurely Running in Walami | 56,00 | ×2 |
| ✓ 4 | 3/2/2018 | 3rd Jinshui Camp Trail 55km | 54,10 | ×2 |
| ✓ 5 | 16/10/2016 | 2nd Trail Running of Mt. Weiliao | 50,90 | ×2 |
| ✓ 6 | 22/4/2017 | Fengshan Ultramarathon | 49,40 | ×2 |
| ✓ 7 | 19/4/2020 | 5th Yi Tong Go Trail Running UltraMarathon | 49,20 | ×2 |
| ✓ 8 | 16/7/2017 | 2nd Forest of Forget The Sorrow UltraMarathon | 47,00 | ×2 |
| ✓ 9 | 15/10/2017 | 2nd Dawushan Ultramarathon | 46,30 | ×2 |
| ✓ 10 | 29/4/2018 | 3rd Mountain Majestic Lake Beautiful Ultra Run | 45,00 | ×1 |
| ✓ 11 | 19/2/2017 | 3rd Zhongliao Mountain Ultramarathon | 45,00 | ×1 |
| ✓ 12 | 17/4/2016 | 1st Mountain Majestic Lake Beautiful Ultra Run | 45,00 | ×1 |