| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:35.83 | 2025 Maddy Kort Invitational | 2025-06-20 |
| 100m Backstroke | 1:26.74 | SCAR Cindy Nicholas Memorial Meet | 2025-11-01 |
| 100m Breaststroke | 1:43.72 | Border City Invitational 2025 | 2025-12-05 |
| 100m Butterfly | 1:52.45 | Dean Boles Invitational Meet | 2026-01-10 |
| 100m Freestyle | 1:26.02 | 2025 Maddy Kort Invitational | 2025-06-20 |
| 100m Freestyle | 1:17.47 | Pan Am Open 2026 | 2026-02-21 |
| 100m IM | 1:36.90 | 2025 Maddy Kort Invitational | 2025-06-20 |
| 200m Backstroke | 3:15.80 | Border City Invitational 2025 | 2025-12-05 |
| 200m Breaststroke | 3:48.80 | Pan Am Open 2026 | 2026-02-21 |
| 200m Freestyle | 3:02.37 | 2025 Maddy Kort Invitational | 2025-06-20 |
| 200m Freestyle | 2:49.75 | Border City Invitational 2025 | 2025-12-05 |
| 200m IM | 3:10.51 | Border City Invitational 2025 | 2025-12-05 |
| 400m Freestyle | 6:05.49 | Dean Boles Invitational Meet | 2026-01-10 |
| 50m Backstroke | 40.27 | SCAR Cindy Nicholas Memorial Meet | 2025-11-01 |
| 50m Breaststroke | 47.03 | Dean Boles Invitational Meet | 2026-01-10 |
| 50m Butterfly | 47.13 | 2025 Maddy Kort Invitational | 2025-06-20 |
| 50m Butterfly | 40.18 | Border City Invitational 2025 | 2025-12-05 |
| 50m Freestyle | 38.44 | 2025 Maddy Kort Invitational | 2025-06-20 |
| 50m Freestyle | 34.37 | Tuesday Night at the Races 1 | 2025-10-14 |
| 800m Freestyle | 12:15.53 | SCAR Cindy Nicholas Memorial Meet | 2025-11-01 |
Tessier, Lyla's top personal bests include 100m Backstroke (1:35.83), 100m Backstroke (1:26.74), 100m Breaststroke (1:43.72), 100m Butterfly (1:52.45), 100m Freestyle (1:26.02).
Tessier, Lyla swims for Whitby Swimming.
Tessier, Lyla has competed in 7 meets.