Tien-Cheng (鄭天成) Cheng
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Born : 1965
Cat. M60 Ultrarunner since 2012
10
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
22
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
Taiwan46,3%
Rank quotient ?This runner's calculation uses 10 eligible race(s): Σ(rank − 1) = 1 188; Σ finishers = 2 565. 1 188 / 2 565 × 100 = 46.32%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed10
Km — ultra races528 km
Longest race80,0 km
6th Zhenxibao (Cinsbu) 80 km Ultramarathon I — 21/1/2018
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road100,0%
Records
HISTORY
10 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 21/1/2018 | 6th Zhenxibao (Cinsbu) 80 km Ultramarathon I | 80,00 | ×3 |
| ✓ 2 | 13/1/2018 | 6th Yangmingshan 66km Ultra Marathon | 66,00 | ×3 |
| ✓ 3 | 20/5/2017 | 4th Dakeng Ultra Run - 50 km | 50,00 | ×2 |
| ✓ 4 | 24/1/2016 | 4th Zhenxibao (Cinsbu) 50 km Ultramarathon | 50,00 | ×2 |
| ✓ 5 | 18/11/2012 | 1st Yilan Dongshan River 50km Ultra-Marathon | 50,00 | ×2 |
| ✓ 6 | 18/6/2016 | 1st Plum Blossom Ultramarathon | 48,00 | ×2 |
| ✓ 7 | 24/6/2017 | 1st Baldcypress Ultra Run | 47,50 | ×2 |
| ✓ 8 | 6/8/2017 | 2nd Tianxishui Ultra Run | 46,50 | ×2 |
| ✓ 9 | 23/7/2017 | 2nd Lovers' Gorge Ultra Run | 45,00 | ×2 |
| ✓ 10 | 25/6/2017 | 1st Wujhihshan Ultra Run | 45,00 | ×2 |