Chik-Chi Tam
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13
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
5
Countries visited ?
China
Hong Kong
Italy
Japan
Thailand
23,8%
Rank quotient ?This runner's calculation uses 13 eligible race(s): Σ(rank − 1) = 3 110; Σ finishers = 13 053. 3 110 / 13 053 × 100 = 23.83%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed13
Km — ultra races852 km
> 100 km2
Longest race120,0 km
13^ Lavaredo Ultra Trail by UTMB - 120K — 28/6/2019
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
Records
HISTORY
13 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 28/6/2019 | 13^ Lavaredo Ultra Trail by UTMB - 120K | 120,00 | ×4 |
| ✓ 2 | 29/8/2025 | 19ème Courmayeur-Champex-Chamonix (CCC) | 101,00 | ×4 |
| ✓ 3 | 17/11/2017 | 36th Oxfam Trailwalker Hong Kong | 100,00 | ×4 |
| ✓ 4 | 29/3/2024 | 4th 4TUL 66km Half Loop | 66,00 | ×2 |
| ✓ 5 | 20/6/2026 | 2nd Kaga Spa by UTMB - Kaga Spa Trail Endurance 50 | 58,00 | ×2 |
| ✓ 6 | 1/3/2025 | 1st Ultra-Trail Xiamen by UTMB - 50K | 53,60 | ×2 |
| ✓ 7 | 7/12/2024 | 1st Chiangmai Thailand by UTMB - HMONG 50 | 53,00 | ×2 |
| ✓ 8 | 11/3/2023 | 1st The North Face 100 Ultra Trail Challenge Hong Kong | 50,00 | ×2 |
| ✓ 9 | 4/3/2023 | 1st Salomon Hong Kong Dynamic 50km Challenge | 50,00 | ×2 |
| ✓ 10 | 26/10/2019 | 9th MSIG HK50 | 50,00 | ×2 |
| ✓ 11 | 23/3/2019 | 1st MSIG HK50 West | 50,00 | ×2 |
| ✓ 12 | 2/12/2018 | 7th MSIG Lantau 50 | 50,00 | ×2 |
| ✓ 13 | 18/2/2017 | 5th MSIG Sai Kung 50 | 50,00 | ×2 |