| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Breaststroke | 1:01.03 | UBC University Cup Pacific 2025 | 2025-11-08 |
| 100m Butterfly | 54.78 | UVic - SFU Dual Meet | 2026-01-31 |
| 100m Freestyle | 50.34 | UBC University Cup Pacific 2025 | 2025-11-08 |
| 100m IM | 55.13 | UBC University Cup Pacific 2025 | 2025-11-08 |
| 200m IM | 1:58.84 | 2026 West Coast Collegiate | 2026-02-21 |
| 400m IM | 4:17.83 | UVic - SFU Dual Meet | 2026-01-31 |
| 50m Freestyle | 22.99 | 2026 West Coast Collegiate | 2026-02-21 |
Mak, Marcus's top personal bests include 100m Breaststroke (1:01.03), 100m Butterfly (54.78), 100m Freestyle (50.34), 100m IM (55.13), 200m IM (1:58.84).
Mak, Marcus swims for Unattached.
Mak, Marcus has competed in 5 meets.