| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:04.92 | Toronto Grand Prix | 2026-01-24 |
| 100m Backstroke | 1:00.64 | UT QUAD Meet (vs Calgary, Western, Quebec) | 2026-01-23 |
| 100m Butterfly | 1:04.94 | Toronto Grand Prix | 2026-01-24 |
| 100m Freestyle | 1:00.33 | Toronto Grand Prix | 2026-01-24 |
| 200m Backstroke | 2:13.10 | Toronto Varsity Blues vs McGill | 2025-11-16 |
| 50m Backstroke | 29.93 | Toronto Grand Prix | 2026-01-24 |
| 50m Backstroke | 27.66 | UT QUAD Meet (vs Calgary, Western, Quebec) | 2026-01-23 |
| 50m Butterfly | 27.84 | UT QUAD Meet (vs Calgary, Western, Quebec) | 2026-01-23 |
| 50m Freestyle | 25.73 | UT QUAD Meet (vs Calgary, Western, Quebec) | 2026-01-23 |
McGrath, Rebecca's top personal bests include 100m Backstroke (1:04.92), 100m Backstroke (1:00.64), 100m Butterfly (1:04.94), 100m Freestyle (1:00.33), 200m Backstroke (2:13.10).
McGrath, Rebecca swims for McGill University.
McGrath, Rebecca has competed in 4 meets.