| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:14.24 | 2025 Candy Cane Invitational | 2025-12-12 |
| 100m Butterfly | 1:19.70 | Age Group Development #3 | 2025-11-22 |
| 100m Freestyle | 1:07.78 | Age Group Development #3 | 2025-11-22 |
| 100m IM | 1:17.32 | 2025 DAL Sprint Meet | 2025-10-19 |
| 200m Backstroke | 2:40.60 | 2025 Candy Cane Invitational | 2025-12-12 |
| 200m Breaststroke | 3:12.52 | AGD Distance Meet North | 2025-11-09 |
| 200m Freestyle | 2:20.39 | 2025 Candy Cane Invitational | 2025-12-12 |
| 200m IM | 2:33.41 | 2025 Candy Cane Invitational | 2025-12-12 |
| 400m Freestyle | 4:55.52 | 2025 Candy Cane Invitational | 2025-12-12 |
| 400m IM | 5:31.98 | 2025 Candy Cane Invitational | 2025-12-12 |
| 50m Backstroke | 36.71 | 2025 DAL Sprint Meet | 2025-10-19 |
| 50m Breaststroke | 42.17 | 2025 DAL Sprint Meet | 2025-10-19 |
| 50m Butterfly | 35.91 | 2025 DAL Sprint Meet | 2025-10-19 |
| 50m Freestyle | 32.63 | 2025 DAL Sprint Meet | 2025-10-19 |
| 800m Freestyle | 9:50.85 | 2025 Candy Cane Invitational | 2025-12-12 |
MacDonald, Katherine's top personal bests include 100m Backstroke (1:14.24), 100m Butterfly (1:19.70), 100m Freestyle (1:07.78), 100m IM (1:17.32), 200m Backstroke (2:40.60).
MacDonald, Katherine swims for Truro Centurions Swim Club.
MacDonald, Katherine has competed in 8 meets.