| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:49.04 | 2026 Manta Grand Prix | 2026-02-20 |
| 100m Butterfly | 1:55.44 | Manitoba Open Junior Provincials | 2026-02-06 |
| 100m Freestyle | 1:25.43 | St. James Seals Invitational | 2026-01-23 |
| 100m IM | 1:45.87 | St. James Seals Invitational | 2026-01-23 |
| 200m Backstroke | 3:55.68 | 2026 Manta Grand Prix | 2026-02-20 |
| 200m Freestyle | 3:21.02 | St. James Seals Invitational | 2026-01-23 |
| 25m Butterfly | 22.86 | Bison Sprint IM Invitational | 2025-10-18 |
| 50m Backstroke | 48.37 | Manitoba Open Junior Provincials | 2026-02-06 |
| 50m Breaststroke | 1:04.17 | Bison Sprint IM Invitational | 2025-10-18 |
| 50m Butterfly | 52.32 | St. James Seals Invitational | 2026-01-23 |
| 50m Freestyle | 37.59 | St. James Seals Invitational | 2026-01-23 |
Bremner, Mackenzie's top personal bests include 100m Backstroke (1:49.04), 100m Butterfly (1:55.44), 100m Freestyle (1:25.43), 100m IM (1:45.87), 200m Backstroke (3:55.68).
Bremner, Mackenzie swims for Kenora Swimming Sharks.
Bremner, Mackenzie has competed in 7 meets.