| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:30.52 | BAD Outdoor LC Invitational | 2025-06-20 |
| 100m Backstroke | 1:22.00 | 2026 Trojan Pentathlon | 2026-03-06 |
| 100m Breaststroke | 1:37.20 | 2025 Alex Baumann Invitational | 2025-11-21 |
| 100m Butterfly | 1:33.84 | MAC Rising Star #2 | 2025-05-30 |
| 100m Butterfly | 1:26.35 | MAC Jingle Bell | 2025-12-12 |
| 100m Freestyle | 1:08.14 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
| 100m IM | 1:21.12 | MAC Jingle Bell | 2025-12-12 |
| 200m Freestyle | 2:40.92 | 2025 Central Region Div 2 LC Championships | 2025-06-13 |
| 200m Freestyle | 2:32.04 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
| 200m IM | 3:07.28 | 2026 Trojan Pentathlon | 2026-03-06 |
| 400m Freestyle | 5:27.81 | MAC Jingle Bell | 2025-12-12 |
| 50m Backstroke | 40.67 | MAC Rising Star #2 | 2025-05-30 |
| 50m Backstroke | 37.45 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
| 50m Breaststroke | 48.34 | BAD Outdoor LC Invitational | 2025-06-20 |
| 50m Breaststroke | 45.68 | 2025 Alex Baumann Invitational | 2025-11-21 |
| 50m Butterfly | 37.05 | MAC Rising Star #2 | 2025-05-30 |
| 50m Butterfly | 36.76 | 2025 Alex Baumann Invitational | 2025-11-21 |
| 50m Freestyle | 32.43 | 2025 Central Region Div 2 LC Championships | 2025-06-13 |
| 50m Freestyle | 31.16 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
Mayta, Alessia's top personal bests include 100m Backstroke (1:30.52), 100m Backstroke (1:22.00), 100m Breaststroke (1:37.20), 100m Butterfly (1:33.84), 100m Butterfly (1:26.35).
Mayta, Alessia swims for Oakville Aquatic Club.
Mayta, Alessia has competed in 9 meets.