| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 2:02.30 | NT #2 North | 2025-12-07 |
| 100m Breaststroke | 2:01.60 | NT#1 NORTH | 2025-10-25 |
| 100m IM | 1:48.47 | NT#1 NORTH | 2025-10-25 |
| 200m Freestyle | 3:26.85 | Nova Tech #5 North | 2026-04-12 |
| 50m Backstroke | 52.65 | NT#1 NORTH | 2025-10-25 |
| 50m Breaststroke | 54.76 | AA AGD & NT#4 NORTH | 2026-02-14 |
| 50m Butterfly | 51.78 | Nova Tech #5 North | 2026-04-12 |
| 50m Freestyle | 43.06 | Nova Tech #5 North | 2026-04-12 |
MacDonald, Mylene's top personal bests include 100m Backstroke (2:02.30), 100m Breaststroke (2:01.60), 100m IM (1:48.47), 200m Freestyle (3:26.85), 50m Backstroke (52.65).
MacDonald, Mylene swims for Pictou County Mariners.
MacDonald, Mylene has competed in 5 meets.