| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:37.39 | 2025 Central Region Div 2 LC Championships | 2025-06-13 |
| 100m Backstroke | 1:29.50 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
| 100m Breaststroke | 1:56.65 | MAC Jingle Bell | 2025-12-12 |
| 100m Butterfly | 1:54.58 | David Lawson Invitational 2026 | 2026-01-23 |
| 100m Freestyle | 1:32.28 | BAD Outdoor LC Invitational | 2025-06-20 |
| 100m Freestyle | 1:24.72 | 2026 BAD Spring Invitational Meet | 2026-03-06 |
| 100m IM | 1:42.98 | Gus Ryder Memorial Cup 2025 | 2025-11-07 |
| 200m Backstroke | 3:28.12 | BAD Outdoor LC Invitational | 2025-06-20 |
| 200m Backstroke | 3:18.87 | Gus Ryder Memorial Cup 2025 | 2025-11-07 |
| 200m Freestyle | 3:24.15 | MAC Rising Star #2 | 2025-05-30 |
| 200m Freestyle | 3:09.36 | 2026 BAD Spring Invitational Meet | 2026-03-06 |
| 200m IM | 3:33.00 | David Lawson Invitational 2026 | 2026-01-23 |
| 400m Freestyle | 6:45.86 | MAC Jingle Bell | 2025-12-12 |
| 50m Backstroke | 46.02 | BAD Outdoor LC Invitational | 2025-06-20 |
| 50m Backstroke | 41.16 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
| 50m Breaststroke | 1:05.52 | MAC Rising Star #2 | 2025-05-30 |
| 50m Breaststroke | 54.81 | David Lawson Invitational 2026 | 2026-01-23 |
| 50m Butterfly | 50.06 | MAC Rising Star #2 | 2025-05-30 |
| 50m Butterfly | 54.37 | 2025 OAK Brad Townsend Fall Classic | 2025-10-17 |
| 50m Freestyle | 40.45 | BAD Outdoor LC Invitational | 2025-06-20 |
| 50m Freestyle | 36.44 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
Mangiardi, Mia's top personal bests include 100m Backstroke (1:37.39), 100m Backstroke (1:29.50), 100m Breaststroke (1:56.65), 100m Butterfly (1:54.58), 100m Freestyle (1:32.28).
Mangiardi, Mia swims for Oakville Aquatic Club.
Mangiardi, Mia has competed in 9 meets.