| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:12.36 | Western Transmountain Festival I | 2026-02-14 |
| 100m Backstroke | 1:10.89 | Pugsley's Plunge 2026 | 2026-01-16 |
| 100m Breaststroke | 1:22.80 | OSC J.P. Fiset Invitational | 2025-12-11 |
| 100m Butterfly | 1:09.47 | CP Team Champs 2025 | 2025-09-27 |
| 100m Freestyle | 1:00.92 | Western Transmountain Festival I | 2026-02-14 |
| 100m Freestyle | 58.28 | OSC J.P. Fiset Invitational | 2025-12-11 |
| 200m Backstroke | 2:33.97 | Edmonton Open 2026 | 2026-01-30 |
| 200m Backstroke | 2:29.79 | Pugsley's Plunge 2026 | 2026-01-16 |
| 200m Freestyle | 2:16.70 | Western Transmountain Festival I | 2026-02-14 |
| 200m Freestyle | 2:10.97 | Pugsley's Plunge 2026 | 2026-01-16 |
| 200m IM | 2:32.16 | Edmonton Open 2026 | 2026-01-30 |
| 200m IM | 2:30.71 | OSC J.P. Fiset Invitational | 2025-12-11 |
| 400m Freestyle | 4:46.00 | Winter Quali 2025 | 2025-12-17 |
| 400m Freestyle | 4:26.79 | Winter Provincial Trials | 2026-03-06 |
| 400m IM | 5:21.09 | Edmonton Open 2026 | 2026-01-30 |
| 400m IM | 5:14.74 | Winter Provincial Trials | 2026-03-06 |
| 50m Backstroke | 32.15 | Pugsley's Plunge 2026 | 2026-01-16 |
| 50m Breaststroke | 38.38 | Edmonton Open 2026 | 2026-01-30 |
| 50m Freestyle | 27.69 | Western Transmountain Festival III | 2026-02-20 |
| 50m Freestyle | 26.64 | Winter Provincial Trials | 2026-03-06 |
| 800m Freestyle | 9:17.81 | Winter Provincial Trials | 2026-03-06 |
MacDonald, Aaron's top personal bests include 100m Backstroke (1:12.36), 100m Backstroke (1:10.89), 100m Breaststroke (1:22.80), 100m Butterfly (1:09.47), 100m Freestyle (1:00.92).
MacDonald, Aaron swims for Calgary Patriots Swim Club.
MacDonald, Aaron has competed in 9 meets.