Hui-Wen (張輝文) Chang
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10
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
15,9%
Rank quotient ?This runner's calculation uses 10 eligible race(s): Σ(rank − 1) = 739; Σ finishers = 4 643. 739 / 4 643 × 100 = 15.92%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed10
Km — ultra races611 km
Longest race100,0 km
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road75,7%
Trail24,3%
HISTORY
10 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 10/3/2012 | 2nd Southern Cross-Island Highway 100 km Ultra Marathon | 100,00 | ×4 |
| ✓ 2 | 15/1/2011 | 3rd Praying for Taiwan - 100K Ultramarathon | 100,00 | ×4 |
| ✓ 3 | 3/8/2013 | 1st Shichong Creek Summer Ultramarathon | 72,00 | ×3 |
| ✓ 4 | 28/2/2021 | 4th Fencihu 50 km Ultra Run | 50,00 | ×2 |
| ✓ 5 | 26/2/2012 | Hua-shan 50K Ultra Marathon | 50,00 | ×2 |
| ✓ 6 | 1/8/2010 | 3rd Kaohsiung Summer 50km Ultramarathon | 50,00 | ×2 |
| ✓ 7 | 18/12/2016 | 2nd National University of Kaohsiung 12h | 49,70 | ×2 |
| ✓ 8 | 23/1/2012 | 5th Tainan Branch Friendship Cup Chinese New Year Marathon | 48,60 | ×2 |
| ✓ 9 | 17/10/2010 | Hengchun Airport ultra marathon | 45,60 | ×1 |
| ✓ 10 | 4/11/2017 | 5th Kaohsiung 6h UltraMarathon Saturday Run | 45,50 | ×1 |