| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:59.38 | Nova Tech #5 Central | 2026-04-11 |
| 100m Butterfly | 2:08.38 | Nova Tech #5 Central | 2026-04-11 |
| 100m Freestyle | 1:41.83 | AA Age Group Development Meet & Nova Tech #4 C | 2026-02-14 |
| 100m IM | 1:54.22 | AA AGD Meet & Nova Tech #3 Central | 2026-01-24 |
| 200m Freestyle | 3:53.51 | AA AGD Meet & Nova Tech #3 Central | 2026-01-24 |
| 50m Backstroke | 54.25 | AA Age Group Development Meet & Nova Tech #4 C | 2026-02-14 |
| 50m Breaststroke | 1:03.95 | AA Age Group Development Meet & Nova Tech #4 C | 2026-02-14 |
| 50m Butterfly | 59.35 | AA AGD Meet & Nova Tech #3 Central | 2026-01-24 |
| 50m Freestyle | 45.49 | Nova Tech #5 Central | 2026-04-11 |
MacDonald, Alexa's top personal bests include 100m Backstroke (1:59.38), 100m Butterfly (2:08.38), 100m Freestyle (1:41.83), 100m IM (1:54.22), 200m Freestyle (3:53.51).
MacDonald, Alexa swims for Sackville Waves Aquatic Team.
MacDonald, Alexa has competed in 5 meets.