| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:45.17 | Region B Regional Championships | 2025-07-25 |
| 100m Freestyle | 1:20.35 | NESC Invitational | 2025-06-28 |
| 200m Freestyle | 3:06.55 | ASSA Provincial Championships | 2025-08-01 |
| 25m Freestyle | 14.91 | NESC Invitational | 2025-06-28 |
| 50m Backstroke | 46.99 | NESC Invitational | 2025-06-28 |
| 50m Freestyle | 33.92 | Region B Regional Championships | 2025-07-25 |
Thatcher, Mya's top personal bests include 100m Backstroke (1:45.17), 100m Freestyle (1:20.35), 200m Freestyle (3:06.55), 25m Freestyle (14.91), 50m Backstroke (46.99).
Thatcher, Mya swims for NESC North Edmonton Swim Club.
Thatcher, Mya has competed in 4 meets.