| Event | Time | Meet | Date |
|---|---|---|---|
| 50m Backstroke | 1:15.33 | Muscats Splash Devo Meet #1 | 2025-11-08 |
| 50m Breaststroke | 1:52.96 | Muscats Splash Devo Meet #1 | 2025-11-08 |
| 50m Freestyle | 1:10.66 | Muscats Splash Devo Meet #1 | 2025-11-08 |
Johnston, Ronnie-Rae's top personal bests include 50m Backstroke (1:15.33), 50m Breaststroke (1:52.96), 50m Freestyle (1:10.66).
Johnston, Ronnie-Rae swims for Orillia Channel Cats Swim Club.
Johnston, Ronnie-Rae has competed in 1 meets.