Chia-Cheng (蔡家正) Tsai
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9
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
24
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
11,6%
Rank quotient ?This runner's calculation uses 9 eligible race(s): Σ(rank − 1) = 48; Σ finishers = 413. 48 / 413 × 100 = 11.62%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed9
Km — ultra races690 km
> 100 km1
Longest race108,7 km
9th Taipei 12hr Ultra Marathon — 8/2/2020
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road100,0%
Wins & podiums (ultra)
🏆 Win1
🏆 Win M1
🏅 Top 34
🏅 Top 3 M4
Longest winning streak1
Current streak0
HISTORY
9 race(s) · 8 split(s) nested| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 8/2/2020 | 9th Taipei 12hr Ultra Marathon | 108,68 | ×4 |
| ✓ 2 | 30/1/2021 | 10th Taipei 100km Ultra Marathon | 100,00 | ×4 |
| ✓ 3 | 5/1/2020 | 2nd National University of Kaohsiung 100km | 100,00 | ×4 |
| ✓ 4 | 24/2/2024 | 13th Taipei 6hr Ultra Marathon Saturday Midnight Run | 66,51 | ×2 |
| ✓ 5 | 11/2/2023 | 12th Taipei 6hr Ultra Marathon Saturday Midnight Run | 65,86 | ×2 |
| ✓ 6 | 12/2/2022 | 11th Taipei 6hr Ultra Marathon Saturday Midnight Run | 65,64 | ×2 |
| ✓ 7 | 17/2/2019 | 8th Taipei 6hr Ultra Marathon Sunday Run | 64,13 | ×2 |
| ✓ 8 | 21/9/2019 | 4th Doubang 6h Ultramarathon | 64,00 | ×2 |
| ✓ 9 | 22/9/2018 | 3rd Doubang 6h Ultramarathon | 55,04 | ×2 |