Wai-Yuen Chang
External sources
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Born : 1983
Cat. M40 Ultrarunner since 2014
7
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
17
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 ?
Hong KongMalaysia
Thailand
Hong KongMalaysiaThailand74,7%
Rank quotient ?This runner's calculation uses 7 eligible race(s): Σ(rank − 1) = 1 747; Σ finishers = 2 340. 1 747 / 2 340 × 100 = 74.66%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed7
Km — ultra races402 km
Longest race100,0 km
5th Hong Kong 100 Ultra Trail Race — 17/1/2015
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road37,4%
Trail62,6%
HISTORY
7 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 17/1/2015 | 5th Hong Kong 100 Ultra Trail Race | 100,00 | ×5 |
| ✓ 2 | 16/8/2014 | The Most Beautiful Thing (TMBT) 55 km Ultra Trail Marathon | 51,50 | ×3 |
| ✓ 3 | 28/8/2016 | 1st King Of Sungai Lembing | 50,00 | ×2 |
| ✓ 4 | 12/12/2015 | 1st 12 hour Bukit Cinta Ultramarathon | 50,00 | ×2 |
| ✓ 5 | 1/3/2015 | 3rd Gunung Nuang Endurance 12 hour Run | 50,00 | ×2 |
| ✓ 6 | 8/2/2014 | 3rd The North Face 100 Thailand - 50 km | 50,00 | ×2 |
| ✓ 7 | 4/1/2014 | 1st Watergate 16hr | 50,00 | ×2 |