Chi-Wei (張其偉) 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.
Born : 1971
Cat. M55 Ultrarunner since 2014
5
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
16
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
Taiwan62,9%
Rank quotient ?This runner's calculation uses 5 eligible race(s): Σ(rank − 1) = 832; Σ finishers = 1 322. 832 / 1 322 × 100 = 62.93%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed5
Km — ultra races292 km
Longest race80,0 km
5th Zhenxibao (Cinsbu) 80 km Ultramarathon — 8/1/2017
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road100,0%
Records
HISTORY
5 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2019 | ||||
| 12.01 | 66km | 7th Yangmingshan 66km Ultra Marathon |
8:30:40 h | 47 |
| 2017 | ||||
| 08.01 | 80km | 5th Zhenxibao (Cinsbu) 80 km Ultramarathon |
13:13:33 h | 155 |
| 2016 | ||||
| 17.12 | 45km | 3rd Hsinchu Bao-shan Second Reservoir Ultramarathon |
5:42:42 h | 121 |
| 24.01 | 50km | 4th Zhenxibao (Cinsbu) 50 km Ultramarathon I |
7:31:39 h | 60 |
| 2014 | ||||
| 18.10 | 51km | 3rd Jhen-wu-shan UltraMaraton |
7:15:28 h | 454 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 8/1/2017 | 5th Zhenxibao (Cinsbu) 80 km Ultramarathon | 80,00 | ×5 |
| ✓ 2 | 12/1/2019 | 7th Yangmingshan 66km Ultra Marathon | 66,00 | ×4 |
| ✓ 3 | 18/10/2014 | 3rd Jhen-wu-shan UltraMaraton | 51,00 | ×3 |
| ✓ 4 | 24/1/2016 | 4th Zhenxibao (Cinsbu) 50 km Ultramarathon I | 50,00 | ×3 |
| ✓ 5 | 17/12/2016 | 3rd Hsinchu Bao-shan Second Reservoir Ultramarathon | 45,00 | ×2 |