Cheng-Song (蔡盛松) Tsai
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Born : 1960
Cat. M65 Ultrarunner since 2013
10
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
25
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
Taiwan37,8%
Rank quotient ?This runner's calculation uses 10 eligible race(s): Σ(rank − 1) = 1 406; Σ finishers = 3 715. 1 406 / 3 715 × 100 = 37.85%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed10
Km — ultra races707 km
> 100 km1
Longest race108,0 km
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road100,0%
Wins & podiums (ultra)
🏆 Win0
🏆 Win M0
🏅 Top 30
🏅 Top 3 M1
Longest winning streak0
Current streak0
Records
HISTORY
10 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2024 | ||||
| 21.01 | 50km | 10th Zhenxibao (Cinsbu) 50 km Ultramarathon |
7:07:59 h | 134 |
| 2023 | ||||
| 08.01 | 100km | 9th Zhenxibao (Cinsbu) 100 km Ultramarathon |
14:27:35 h | 426 |
| 2020 | ||||
| 26.12 | 46km | 7th Feifeng Mountain Ultra Run |
5:55:13 h | 5 |
| 2019 | ||||
| 20.01 | 100km | 7th Zhenxibao (Cinsbu) 100 km Ultramarathon |
13:41:15 h | 387 |
| 2018 | ||||
| 01.12 | 45km | 1st Zhudong Riverside Park Ultra Run |
5:56:32 h | 4 |
| 2016 | ||||
| 24.01 | 50km | 4th Zhenxibao (Cinsbu) 50 km Ultramarathon |
5:04:29 h | 37 |
| 2015 | ||||
| 07.03 | 108km | 5th Southern Cross-Island Highway 108 km Ultra Marathon |
13:20:34 h | 77 |
| 2014 | ||||
| 23.02 | 100km | 2nd Zhenxibao (Cinsbu) 100 km Ultramarathon |
12:51:16 h | 91 |
| 2013 | ||||
| 22.12 | 58km | 1st Shei-Pa ultramarathon |
6:36:51 h | 112 |
| 14.04 | 50km | 1st Zhenxibao (Cinsbu) 50 km Ultramarathon |
5:59:08 h | 143 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 7/3/2015 | 5th Southern Cross-Island Highway 108 km Ultra Marathon | 108,00 | ×4 |
| ✓ 2 | 8/1/2023 | 9th Zhenxibao (Cinsbu) 100 km Ultramarathon | 100,00 | ×4 |
| ✓ 3 | 20/1/2019 | 7th Zhenxibao (Cinsbu) 100 km Ultramarathon | 100,00 | ×4 |
| ✓ 4 | 23/2/2014 | 2nd Zhenxibao (Cinsbu) 100 km Ultramarathon | 100,00 | ×4 |
| ✓ 5 | 22/12/2013 | 1st Shei-Pa ultramarathon | 58,00 | ×2 |
| ✓ 6 | 21/1/2024 | 10th Zhenxibao (Cinsbu) 50 km Ultramarathon | 50,00 | ×2 |
| ✓ 7 | 24/1/2016 | 4th Zhenxibao (Cinsbu) 50 km Ultramarathon | 50,00 | ×2 |
| ✓ 8 | 14/4/2013 | 1st Zhenxibao (Cinsbu) 50 km Ultramarathon | 50,00 | ×2 |
| ✓ 9 | 26/12/2020 | 7th Feifeng Mountain Ultra Run | 46,00 | ×1 |
| ✓ 10 | 1/12/2018 | 1st Zhudong Riverside Park Ultra Run | 45,00 | ×1 |