Yu-Hsien (張宇賢) Chang
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Born : 1980
Cat. M45 Ultrarunner since 2015
15
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
30
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
Taiwan16,6%
Rank quotient ?This runner's calculation uses 15 eligible race(s): Σ(rank − 1) = 707; Σ finishers = 4 250. 707 / 4 250 × 100 = 16.64%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed15
Km — ultra races1 101 km
> 100 km1
Longest race111,7 km
3rd Kaohsiung 12h Track UltraMarathon — 31/10/2015
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road100,0%
Wins & podiums (ultra)
🏆 Win1
🏆 Win M1
🏅 Top 32
🏅 Top 3 M2
Longest winning streak1
Current streak0
HISTORY
15 race(s) · 4 split(s) nested| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 31/10/2015 | 3rd Kaohsiung 12h Track UltraMarathon | 111,72 | ×3 |
| ✓ 2 | 7/2/2026 | 15th Taipei 100km Ultra Marathon | 100,00 | ×3 |
| ✓ 3 | 25/11/2018 | 7th Yilan Dongshan River 100km Ultra-Marathon | 100,00 | ×3 |
| ✓ 4 | 25/11/2017 | 6th Yilan Dongshan River 100km Ultra-Marathon | 100,00 | ×3 |
| ✓ 5 | 11/3/2017 | 7th Southern Cross-Island Highway 100 km Ultra Marathon | 100,00 | ×3 |
| ✓ 6 | 8/1/2017 | 5th Zhenxibao (Cinsbu) 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 7 | 8/1/2023 | 9th Zhenxibao (Cinsbu) 50 Mile Ultramarathon II | 80,47 | ×2 |
| ✓ 8 | 9/4/2016 | 3rd Yizai Jincheng 6h Ultramarathon | 63,97 | ×2 |
| ✓ 9 | 17/3/2018 | 8th Southern Cross-Island Highway 60 km Ultra Marathon | 60,00 | ×2 |
| ✓ 10 | 25/1/2015 | 3rd Zhenxibao (Cinsbu) 54 km Ultramarathon | 54,00 | ×1 |
| ✓ 11 | 23/6/2019 | 1st North Dawu Mountain Ultra Marathon | 50,00 | ×1 |
| ✓ 12 | 11/11/2017 | 3rd Meinong Ultramarathon | 46,00 | ×1 |
| ✓ 13 | 22/5/2016 | 1st Kaohaiung Love Public Ultramarathon | 45,30 | ×1 |
| ✓ 14 | 8/10/2016 | 2nd Meinong Ultramarathon | 45,00 | ×1 |
| ✓ 15 | 21/6/2015 | 1st Zhongliao Mountain Ultramarathon | 45,00 | ×1 |