| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:10.19 | 2025 Alex Baumann Invitational | 2025-11-21 |
| 100m Breaststroke | 1:49.07 | BAD Fall Invitational | 2025-11-01 |
| 100m Butterfly | 1:00.73 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 100m Freestyle | 1:00.64 | 2025 Alex Baumann Invitational | 2025-11-21 |
| 200m Butterfly | 2:17.62 | 2025 Alex Baumann Invitational | 2025-11-21 |
| 200m Freestyle | 2:10.25 | RHAC Fall Classic 2025 | 2025-10-24 |
| 200m IM | 2:29.21 | RHAC Fall Classic 2025 | 2025-10-24 |
| 400m Freestyle | 4:41.50 | 2025 Alex Baumann Invitational | 2025-11-21 |
| 400m IM | 5:14.68 | 2025 Alex Baumann Invitational | 2025-11-21 |
| 50m Backstroke | 31.52 | Mallards December 2025 IHC | 2025-12-17 |
| 50m Butterfly | 28.93 | 2025 Alex Baumann Invitational | 2025-11-21 |
| 50m Freestyle | 26.93 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
Mak, Chi Yau Alfred's top personal bests include 100m Backstroke (1:10.19), 100m Breaststroke (1:49.07), 100m Butterfly (1:00.73), 100m Freestyle (1:00.64), 200m Butterfly (2:17.62).
Mak, Chi Yau Alfred swims for Mallards Swim Team.
Mak, Chi Yau Alfred has competed in 8 meets.