Chang-Chih (蔡昌智) Tsai
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16
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
26
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
26,9%
Rank quotient ?This runner's calculation uses 16 eligible race(s): Σ(rank − 1) = 1 771; Σ finishers = 6 585. 1 771 / 6 585 × 100 = 26.89%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed16
Km — ultra races987 km
> 100 km1
Longest race100,7 km
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road100,0%
HISTORY
17 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 24/3/2013 | 3rd National Taipei University 12H Ultra Marathon | 100,66 | ×3 |
| ✓ 2 | 23/2/2014 | 2nd Zhenxibao (Cinsbu) 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 3 | 25/3/2012 | 2nd National Taipei University 12H Ultra Marathon | 95,13 | ×3 |
| ✓ 4 | 22/10/2011 | 1st Taipei ocean 8H Ultramarathon | 61,67 | ×2 |
| ✓ 5 | 29/12/2012 | 2nd Yangmingshan Ultra Marathon | 61,00 | ×2 |
| ✓ 6 | 24/12/2011 | 1th Yangmingshan Ultra Marathon | 61,00 | ×2 |
| ✓ 7 | 22/12/2013 | 1st Shei-Pa ultramarathon | 58,00 | ×2 |
| ✓ 8 | 5/5/2012 | 1st Bei-yi Freeway Ultra Marathon | 53,50 | ×2 |
| ✓ 9 | 12/10/2013 | 2nd Jhen-wu-shan UltraMaraton | 53,00 | ×2 |
| ✓ 10 | 16/2/2013 | 2nd Taipei 6hr Ultra Marathon Saturday Run | 52,77 | ×2 |
| ✓ 11 | 17/11/2013 | 3rd Flex Power National 50K Track Taipei | 50,00 | ×1 |
| ✓ 12 | 25/8/2013 | 1st Shiding 50km Ultramarathon | 50,00 | ×1 |
| ✓ 13 | 8/12/2012 | 2nd Hsinchu Bao-shan Second Reservoir Ultramarathon | 50,00 | ×1 |
| ✓ 14 | 9/9/2012 | 2nd Flex Power National 50K Track Taichung | 50,00 | ×1 |
| ✓ 15 | 6/4/2014 | 1st Mingde Reservoir Ultramarathon | 45,60 | ×1 |
| ✓ 16 | 2/11/2013 | 2nd Datun Mountain Ultra Marathon | 45,00 | ×1 |