Chia-Cheng (蔡家正) Tsai
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Born : 1978
Cat. M45 Ultrarunner since 2016
15
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
27
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
3
Countries visited ?
Japan
ThailandTaiwan
JapanThailandTaiwan56,3%
Rank quotient ?This runner's calculation uses 15 eligible race(s): Σ(rank − 1) = 2 875; Σ finishers = 5 111. 2 875 / 5 111 × 100 = 56.25%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed15
Km — ultra races1 026 km
> 100 km2
Longest race104,0 km
4th Formosa Trail 100km — 30/11/2019
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road47,5%
Trail52,5%
HISTORY
15 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 30/11/2019 | 4th Formosa Trail 100km | 104,00 | ×3 |
| ✓ 2 | 17/10/2020 | 3rd 800 Heroes - Overlord of KinMen 102km | 102,00 | ×3 |
| ✓ 3 | 17/3/2018 | 8th Southern Cross-Island Highway 100 km Ultra Marathon | 100,00 | ×3 |
| ✓ 4 | 9/1/2021 | 5th Dragon, Tiger, Phoenix Trail 95 km | 95,00 | ×3 |
| ✓ 5 | 8/1/2017 | 5th Zhenxibao (Cinsbu) 80 km Ultramarathon | 80,00 | ×2 |
| ✓ 6 | 2/11/2019 | 3rd Trail Running of Meishan - 75 km | 75,00 | ×2 |
| ✓ 7 | 21/4/2024 | 34th Fuji 3 Lakes 62 km Challenge | 62,00 | ×2 |
| ✓ 8 | 9/12/2018 | 3rd Dragon, Tiger, Phoenix Trail 60 km | 59,50 | ×2 |
| ✓ 9 | 7/12/2024 | 1st Chiangmai Thailand by UTMB - HMONG 50 | 53,00 | ×1 |
| ✓ 10 | 17/12/2022 | 5th 800 Heroes - Jinshui Camp Trail westward 53km | 53,00 | ×1 |
| ✓ 11 | 21/4/2019 | 7th The North Face 50K Challenge Taiwan | 50,00 | ×1 |
| ✓ 12 | 5/6/2016 | 1st Ultra-Trail Yilan | 50,00 | ×1 |
| ✓ 13 | 18/5/2019 | 4th Yi Tong Go Trail Running UltraMarathon | 49,20 | ×1 |
| ✓ 14 | 29/7/2018 | 3rd Forest of Forget The Sorrow UltraMarathon | 46,60 | ×1 |
| ✓ 15 | 4/8/2019 | 4th Run to Malabon UltraMarathon | 46,40 | ×1 |