| Event | Time | Meet | Date |
|---|---|---|---|
| 50m Backstroke | 1:12.08 | Muscats Splash Devo Meet #1 | 2025-11-08 |
| 50m Freestyle | 1:01.98 | Muscats Splash Devo Meet #1 | 2025-11-08 |
Mitchell, Margaret's top personal bests include 50m Backstroke (1:12.08), 50m Freestyle (1:01.98).
Mitchell, Margaret swims for Orillia Channel Cats Swim Club.
Mitchell, Margaret has competed in 1 meets.