Yuet-Chung (吳乙忠) Ng
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15
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
31
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
5
Countries visited ?
China
Hong Kong
Italy
South Korea
Thailand
13,7%
Rank quotient ?This runner's calculation uses 15 eligible race(s): Σ(rank − 1) = 1 715; Σ finishers = 12 561. 1 715 / 12 561 × 100 = 13.65%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed15
Km — ultra races1 212 km
> 100 km3
> 160 km1
Longest race162,0 km
7th Victoria 162 — 6/3/2026
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
HISTORY
15 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 6/3/2026 | 7th Victoria 162 | 162,00 | ×5 |
| ✓ 2 | 10/4/2026 | 1st Ultra-Trail Mogan by UTMB - DMG | 113,00 | ×3 |
| ✓ 3 | 29/8/2025 | 19ème Courmayeur-Champex-Chamonix (CCC) | 101,00 | ×3 |
| ✓ 4 | 24/1/2026 | 16th Hong Kong 100 Ultra Trail Race | 100,00 | ×3 |
| ✓ 5 | 9/11/2024 | 11th TransLantau 100 by UTMB | 100,00 | ×3 |
| ✓ 6 | 5/12/2025 | 2nd Chiangmai Thailand by UTMB - ELEPHANT 100 | 90,00 | ×2 |
| ✓ 7 | 14/2/2025 | 6th The 9 Dragons - 50 Miles | 80,47 | ×2 |
| ✓ 8 | 8/3/2025 | 6th Victoria 80 | 80,00 | ×2 |
| ✓ 9 | 29/3/2024 | 4th 4TUL 66km Half Loop | 66,00 | ×2 |
| ✓ 10 | 18/10/2025 | 11th Ninghai Ultra Trail - 50km | 60,00 | ×1 |
| ✓ 11 | 17/1/2025 | 15th Hong Kong 100 Ultra Trail Race - Half | 56,00 | ×1 |
| ✓ 12 | 1/3/2025 | 1st Ultra-Trail Xiamen by UTMB - 50K | 53,60 | ×1 |
| ✓ 13 | 7/12/2024 | 1st Chiangmai Thailand by UTMB - HMONG 50 | 53,00 | ×1 |
| ✓ 14 | 12/10/2024 | 11th TransJeju by UTMB 50 | 52,00 | ×1 |
| ✓ 15 | 10/12/2023 | 1st TSL Lantau Trail 45 | 45,00 | ×1 |