| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:28.38 | 2025 VIR Championships | 2025-06-20 |
| 100m Backstroke | 1:26.78 | 2025 Summer Divisionals - Vancouver & Fraser | 2025-06-27 |
| 100m Breaststroke | 1:38.80 | 2025 NRST Fall Invitational | 2025-10-25 |
| 100m Butterfly | 1:32.51 | 2025 PCS Xmas Cracker | 2025-12-05 |
| 100m Freestyle | 1:07.43 | 2026 Wavemaker | 2026-04-17 |
| 100m Freestyle | 1:05.57 | 2026 BC Winter Provincial Championships | 2026-03-05 |
| 100m IM | 1:26.79 | 2025 CRKW Eliminator-Invitational | 2025-11-29 |
| 1500m Freestyle | 4:49.16 | 2026 Wavemaker | 2026-04-17 |
| 200m Backstroke | 3:16.12 | 2025 VIR Championships | 2025-06-20 |
| 200m Backstroke | 2:58.50 | 2025 ISC Bennett Cup | 2025-11-07 |
| 200m Butterfly | 3:40.27 | 2025 PCS Xmas Cracker | 2025-12-05 |
| 200m Freestyle | 2:28.55 | 2026 Wavemaker | 2026-04-17 |
| 200m Freestyle | 2:25.82 | BC Winter Divisionals - Island & Coastal Vancouver | 2026-02-20 |
| 200m IM | 2:50.53 | 2026 Wavemaker | 2026-04-17 |
| 200m IM | 2:48.52 | 2026 VIR SC Championships | 2026-01-30 |
| 400m Freestyle | 5:19.29 | 2026 Wavemaker | 2026-04-17 |
| 400m Freestyle | 5:05.19 | BC Winter Divisionals - Island & Coastal Vancouver | 2026-02-20 |
| 400m IM | 6:11.67 | 2026 Wavemaker | 2026-04-17 |
| 400m IM | 6:09.34 | BC Winter Divisionals - Island & Coastal Vancouver | 2026-02-20 |
| 50m Backstroke | 40.50 | 2025 VIR Championships | 2025-06-20 |
| 50m Backstroke | 36.41 | BC Winter Divisionals - Island & Coastal Vancouver | 2026-02-20 |
| 50m Breaststroke | 44.03 | 2026 Wavemaker | 2026-04-17 |
| 50m Butterfly | 38.43 | 2025 NRST Fall Invitational | 2025-10-25 |
| 50m Freestyle | 30.64 | 2026 Wavemaker | 2026-04-17 |
| 50m Freestyle | 30.03 | BC Winter Divisionals - Island & Coastal Vancouver | 2026-02-20 |
| 800m Freestyle | 10:42.34 | BC Winter Divisionals - Island & Coastal Vancouver | 2026-02-20 |
Marston, Maya's top personal bests include 100m Backstroke (1:28.38), 100m Backstroke (1:26.78), 100m Breaststroke (1:38.80), 100m Butterfly (1:32.51), 100m Freestyle (1:07.43).
Marston, Maya swims for UVic-Pacific Coast Swimming.
Marston, Maya has competed in 11 meets.