| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Breaststroke | 1:26.41 | ManSask Provincial Championships | 2025-07-10 |
| 100m Breaststroke | 1:22.33 | 2025 Prairie Winter International | 2025-12-11 |
| 100m Butterfly | 1:19.18 | Spooktacular Goldfins Invitational 49 | 2025-10-24 |
| 100m Freestyle | 1:05.95 | Edmonton Open 2026 | 2026-01-30 |
| 100m Freestyle | 1:05.02 | 2025 Prairie Winter International | 2025-12-11 |
| 100m IM | 1:18.74 | Norm Banfield Memorial Open Development Meet | 2025-10-03 |
| 200m Backstroke | 2:56.91 | Winter Classic | 2026-01-16 |
| 200m Backstroke | 2:49.80 | Spooktacular Goldfins Invitational 49 | 2025-10-24 |
| 200m Breaststroke | 3:05.47 | ManSask Provincial Championships | 2025-07-10 |
| 200m Breaststroke | 3:01.40 | 2025 Prairie Winter International | 2025-12-11 |
| 200m Freestyle | 2:33.00 | ManSask Provincial Championships | 2025-07-10 |
| 200m Freestyle | 2:30.18 | Norm Banfield Memorial Open Development Meet | 2025-10-03 |
| 200m IM | 2:55.84 | Winter Classic | 2026-01-16 |
| 200m IM | 2:47.69 | Norm Banfield Memorial Open Development Meet | 2025-10-03 |
| 400m Freestyle | 5:40.09 | Winter Classic | 2026-01-16 |
| 50m Backstroke | 37.74 | Winter Classic | 2026-01-16 |
| 50m Backstroke | 36.86 | Norm Banfield Memorial Open Development Meet | 2025-10-03 |
| 50m Breaststroke | 38.37 | ManSask Provincial Championships | 2025-07-10 |
| 50m Breaststroke | 37.10 | Spooktacular Goldfins Invitational 49 | 2025-10-24 |
| 50m Butterfly | 33.61 | ManSask Provincial Championships | 2025-07-10 |
| 50m Butterfly | 33.23 | 2025 Prairie Winter International | 2025-12-11 |
| 50m Freestyle | 30.48 | Edmonton Open 2026 | 2026-01-30 |
| 50m Freestyle | 29.50 | 2025 Prairie Winter International | 2025-12-11 |
Kachmarski, Myla's top personal bests include 100m Breaststroke (1:26.41), 100m Breaststroke (1:22.33), 100m Butterfly (1:19.18), 100m Freestyle (1:05.95), 100m Freestyle (1:05.02).
Kachmarski, Myla swims for Regina Optimist Dolphins Swim Team.
Kachmarski, Myla has competed in 8 meets.