Cheng-Hsin (朱正信) Chu
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12
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
28,6%
Rank quotient ?This runner's calculation uses 12 eligible race(s): Σ(rank − 1) = 1 429; Σ finishers = 4 990. 1 429 / 4 990 × 100 = 28.64%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed12
Km — ultra races623 km
Longest race59,4 km
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road100,0%
HISTORY
12 race(s) · 1 split(s) nested| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 20/3/2016 | 5th National Taipei University 12H Ultra Marathon | 59,42 | ×2 |
| ✓ 2 | 15/4/2017 | 3rd The Northern Cross Ultramarathon - 58 km | 58,00 | ×2 |
| ✓ 3 | 19/3/2017 | 6th National Taipei University 12H Ultra Marathon | 56,45 | ×2 |
| ✓ 4 | 2/1/2016 | 4th Jhen-wu-shan UltraMaraton | 56,00 | ×2 |
| ✓ 5 | 25/1/2015 | 3rd Zhenxibao (Cinsbu) 54 km Ultramarathon | 54,00 | ×2 |
| ✓ 6 | 15/2/2015 | 4th Taipei 6hr Ultra Marathon Sunday Midnight Run | 52,10 | ×2 |
| ✓ 7 | 18/10/2014 | 3rd Jhen-wu-shan UltraMaraton | 51,00 | ×2 |
| ✓ 8 | 13/12/2014 | 3rd Yilan Dongshan River 50km Ultra-Marathon | 50,00 | ×2 |
| ✓ 9 | 12/4/2014 | 4th The North Face 50K Challenge Taiwan | 50,00 | ×2 |
| ✓ 10 | 11/2/2017 | 6th Taipei 6hr Ultra Marathon Saturday Run | 45,65 | ×2 |
| ✓ 11 | 13/2/2016 | 1st Mountain sea lover Ultramarathon | 45,60 | ×2 |
| ✓ 12 | 24/9/2016 | 1st Maruta Fort Ultra Run | 45,00 | ×2 |