| Event | Time | Meet | Date |
|---|---|---|---|
| 50m Backstroke | 51.12 | Chena Invitational | 2026-01-24 |
| 50m Breaststroke | 55.24 | Chena Invitational | 2026-01-24 |
Lau, Marcus's top personal bests include 50m Backstroke (51.12), 50m Breaststroke (55.24).
Lau, Marcus swims for Gators Swim Club.
Lau, Marcus has competed in 1 meets.