| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Butterfly | 1:29.53 | Age Group Development #3 | 2025-11-22 |
| 100m Freestyle | 1:10.76 | 2025 Candy Cane Invitational | 2025-12-12 |
| 100m IM | 1:25.52 | 2025 DAL Sprint Meet | 2025-10-19 |
| 1500m Freestyle | 4:15.38 | 2026 AA & AAA Winter Champs | 2026-03-05 |
| 200m Freestyle | 2:29.40 | 2026 AA & AAA Winter Champs | 2026-03-05 |
| 200m IM | 3:09.08 | 2025 Candy Cane Invitational | 2025-12-12 |
| 400m Freestyle | 5:17.02 | 2026 AA & AAA Winter Champs | 2026-03-05 |
| 400m IM | 6:22.25 | 2026 AA & AAA Winter Champs | 2026-03-05 |
| 50m Backstroke | 41.44 | Age Group Development #3 | 2025-11-22 |
| 50m Breaststroke | 45.91 | 2025 DAL Sprint Meet | 2025-10-19 |
| 50m Butterfly | 37.56 | 2025 DAL Sprint Meet | 2025-10-19 |
| 50m Freestyle | 30.90 | 2026 AA & AAA Winter Champs | 2026-03-05 |
| 800m Freestyle | 10:45.52 | 2026 AA & AAA Winter Champs | 2026-03-05 |
MacSween, Madeline's top personal bests include 100m Butterfly (1:29.53), 100m Freestyle (1:10.76), 100m IM (1:25.52), 1500m Freestyle (4:15.38), 200m Freestyle (2:29.40).
MacSween, Madeline swims for Greenwood Dolphins Swim Club.
MacSween, Madeline has competed in 7 meets.