Sum Lam
- Events
- 400 m · 400 m hurdles
Sum Lam is a Hong Kong SAR China sprinter. He competes primarily in the 400m, 800m and 400mH.
His personal bests include 49.73 in the 400m, 1:58.81 in the 800m and 55.63 in the 400mH. He is currently active on the international athletics circuit, representing Hong Kong SAR China.
Personal best · 400 m49.73
2025 season best49.73Mar 29, 2025 · Wan Chai Sports Ground, Hong Kong
Personal best · 400 m hurdles55.63
Last competitionHong Kong Athletics Series 4, Wan Chai Sports Ground, Hong KongJun 28, 2025 · 50.56
As of Oct 27, 2026: 400 m 49.73, 400 m hurdles 55.63, 2025 season best 49.73 (Mar 29, 2025, Wan Chai Sports Ground, Hong Kong (HKG)) · Last competition: Hong Kong Athletics Series 4, Wan Chai Sports Ground, Hong Kong, Jun 28, 2025, 50.56
Personal bests
WA points calculator →Progression
| Season | Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|---|
| 2025 | 400m | 49.73 | – | Mar 29, 2025 | Hong Kong Athletics Series 2, Wan Chai Sports Ground, Hong Kong |
| 2025 | 400mH | 55.63 | – | May 11, 2025 | Hong Kong Athletics Championships, Wan Chai Sports Ground, Hong Kong |
| 2025 | 800m | 1:58.81 | – | Feb 16, 2025 | Hong Kong Athletics Series 1 |
| 2024 | 400m | 50.17 | – | Nov 2, 2024 | Hong Kong Athletics Open Meet cum Decathlon, Tsueng Kwan O Sports Ground, Hong Kong |
| 2024 | 800m | 1:59.61 | – | Nov 3, 2024 | Hong Kong Athletics Open Meet cum Decathlon, Tsueng Kwan O Sports Ground, Hong Kong |