| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:35.12 | LAC - Nothers Fall Invitational | 2025-11-21 |
| 100m Breaststroke | 1:48.50 | LAC - 12 & Under Celebration | 2026-01-17 |
| 100m Butterfly | 1:53.02 | LAC - Nothers Fall Invitational | 2025-11-21 |
| 100m Freestyle | 1:25.81 | LAC - 12 & Under Celebration | 2026-01-17 |
| 200m Backstroke | 3:24.34 | LAC – November Fall Time Trial | 2025-11-01 |
| 200m Breaststroke | 3:43.96 | LAC – November Fall Time Trial | 2025-11-01 |
| 200m Freestyle | 3:11.91 | LAC - Nothers Fall Invitational | 2025-11-21 |
| 200m IM | 3:29.42 | LAC – November Fall Time Trial | 2025-11-01 |
| 400m Freestyle | 6:47.61 | LAC - 12 & Under Celebration | 2026-01-17 |
| 50m Backstroke | 44.30 | LAC - Nothers Fall Invitational | 2025-11-21 |
| 50m Breaststroke | 48.25 | LAC - Dr. Paul Hauch Invitational | 2025-07-05 |
| 50m Butterfly | 47.59 | LAC - Nothers Fall Invitational | 2025-11-21 |
| 50m Freestyle | 38.56 | LAC - Dr. Paul Hauch Invitational | 2025-07-05 |
| 800m Freestyle | 13:11.83 | LAC - Nothers Fall Invitational | 2025-11-21 |
McDonald, Rebecca's top personal bests include 100m Backstroke (1:35.12), 100m Breaststroke (1:48.50), 100m Butterfly (1:53.02), 100m Freestyle (1:25.81), 200m Backstroke (3:24.34).
McDonald, Rebecca swims for London Aquatic Club.
McDonald, Rebecca has competed in 4 meets.