| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:34.22 | 2026 AA & AAA Winter Champs | 2026-03-05 |
| 100m Breaststroke | 2:03.43 | AAA/AA #5 LCM Invitational Swim Meet | 2026-04-25 |
| 100m Butterfly | 2:01.09 | NT #2 North | 2025-12-07 |
| 100m Freestyle | 1:25.18 | AAA/AA #5 LCM Invitational Swim Meet | 2026-04-25 |
| 100m Freestyle | 1:32.69 | AA AGD Meet & Nova Tech #3 North | 2026-01-25 |
| 100m IM | 1:46.47 | NT#1 NORTH | 2025-10-25 |
| 200m Freestyle | 3:13.31 | AAA/AA #5 LCM Invitational Swim Meet | 2026-04-25 |
| 200m Freestyle | 3:02.93 | 2026 AA & AAA Winter Champs | 2026-03-05 |
| 200m IM | 3:34.59 | 2026 AA & AAA Winter Champs | 2026-03-05 |
| 50m Backstroke | 41.11 | 2026 AA & AAA Winter Champs | 2026-03-05 |
| 50m Breaststroke | 56.08 | AAA/AA #5 LCM Invitational Swim Meet | 2026-04-25 |
| 50m Breaststroke | 56.65 | 2026 AA & AAA Winter Champs | 2026-03-05 |
| 50m Butterfly | 43.71 | AAA/AA #5 LCM Invitational Swim Meet | 2026-04-25 |
| 50m Butterfly | 47.58 | 2026 AA & AAA Winter Champs | 2026-03-05 |
| 50m Freestyle | 39.33 | 2025 Candy Cane Invitational | 2025-12-12 |
McDonald, Peyton's top personal bests include 100m Backstroke (1:34.22), 100m Breaststroke (2:03.43), 100m Butterfly (2:01.09), 100m Freestyle (1:25.18), 100m Freestyle (1:32.69).
McDonald, Peyton swims for Pictou County Mariners.
McDonald, Peyton has competed in 7 meets.