| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:16.37 | KAJ Fall Classic | 2025-11-21 |
| 100m Breaststroke | 1:26.16 | KAJ Fall Classic | 2025-11-21 |
| 100m Butterfly | 1:18.07 | Smile Enhancement Studio 2025 Pentathlon | 2025-10-17 |
| 100m Freestyle | 1:02.11 | KCS 32nd MJB Law Classic SCM | 2025-12-12 |
| 100m IM | 1:12.43 | KAJ Fall Classic | 2025-11-21 |
| 200m Backstroke | 2:50.93 | KAJ Fall Classic | 2025-11-21 |
| 200m IM | 2:38.42 | KCS 32nd MJB Law Classic SCM | 2025-12-12 |
| 50m Backstroke | 35.29 | Smile Enhancement Studio 2025 Pentathlon | 2025-10-17 |
| 50m Breaststroke | 38.00 | KCS 32nd MJB Law Classic SCM | 2025-12-12 |
| 50m Butterfly | 32.92 | Smile Enhancement Studio 2025 Pentathlon | 2025-10-17 |
| 50m Freestyle | 28.83 | Smile Enhancement Studio 2025 Pentathlon | 2025-10-17 |
MacKenzie, Maxwell's top personal bests include 100m Backstroke (1:16.37), 100m Breaststroke (1:26.16), 100m Butterfly (1:18.07), 100m Freestyle (1:02.11), 100m IM (1:12.43).
MacKenzie, Maxwell swims for KISU Swim Club.
MacKenzie, Maxwell has competed in 3 meets.