Chih-Ming (張志銘) Chang
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Born : 1973
Cat. M50 Ultrarunner since 2016
4
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
15
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
Taiwan90,6%
Rank quotient ?This runner's calculation uses 4 eligible race(s): Σ(rank − 1) = 1 532; Σ finishers = 1 691. 1 532 / 1 691 × 100 = 90.60%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed4
Km — ultra races248 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
4 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2020 | ||||
| 12.01 | 63km | 8th Yangmingshan 63km Ultra Marathon |
10:31:25 h | 137 |
| 2019 | ||||
| 21.12 | 55km | 3rd Bei-yi Freeway Ultra Marathon |
8:54:59 h | 361 |
| 2017 | ||||
| 08.01 | 80km | 5th Zhenxibao (Cinsbu) 80 km Ultramarathon |
13:49:06 h | 193 |
| 2016 | ||||
| 24.01 | 50km | 4th Zhenxibao (Cinsbu) 50 km Ultramarathon |
8:40:53 h | 845 |
| 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 | 12/1/2020 | 8th Yangmingshan 63km Ultra Marathon | 63,00 | ×4 |
| ✓ 3 | 21/12/2019 | 3rd Bei-yi Freeway Ultra Marathon | 55,00 | ×3 |
| ✓ 4 | 24/1/2016 | 4th Zhenxibao (Cinsbu) 50 km Ultramarathon | 50,00 | ×3 |