| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:11.69 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 100m Backstroke | 1:06.05 | Western Region Short Course Championships | 2026-02-12 |
| 100m Breaststroke | 1:32.37 | 2025 Age Group International LC | 2025-06-05 |
| 100m Butterfly | 1:08.54 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 100m Butterfly | 1:06.52 | Western Region Short Course Championships | 2026-02-12 |
| 100m Freestyle | 1:02.95 | MAC Winter Invitational | 2026-01-22 |
| 100m Freestyle | 1:03.24 | 2025 NYAC Cup | 2025-11-14 |
| 100m IM | 1:13.13 | Dean Boles Invitational Meet | 2026-01-10 |
| 200m Backstroke | 2:30.36 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 200m Backstroke | 2:26.82 | Western Region Short Course Championships | 2026-02-12 |
| 200m Breaststroke | 3:23.74 | 2025 Age Group International LC | 2025-06-05 |
| 200m Freestyle | 2:14.55 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 200m Freestyle | 2:12.19 | Western Region Short Course Championships | 2026-02-12 |
| 200m IM | 2:36.93 | MAC Winter Invitational | 2026-01-22 |
| 200m IM | 2:36.05 | BAC Team Showdown 2025 | 2025-12-12 |
| 400m Freestyle | 4:44.96 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 400m Freestyle | 4:37.26 | Western Region Short Course Championships | 2026-02-12 |
| 400m IM | 5:22.63 | Western Region Short Course Championships | 2026-02-12 |
| 50m Backstroke | 33.06 | MAC Winter Invitational | 2026-01-22 |
| 50m Backstroke | 33.31 | Dean Boles Invitational Meet | 2026-01-10 |
| 50m Breaststroke | 41.01 | Dean Boles Invitational Meet | 2026-01-10 |
| 50m Butterfly | 30.20 | MAC Winter Invitational | 2026-01-22 |
| 50m Butterfly | 29.01 | Western Region Short Course Championships | 2026-02-12 |
| 50m Freestyle | 29.93 | MAC Winter Invitational | 2026-01-22 |
| 50m Freestyle | 28.56 | Western Region Short Course Championships | 2026-02-12 |
Blais, Liam's top personal bests include 100m Backstroke (1:11.69), 100m Backstroke (1:06.05), 100m Breaststroke (1:32.37), 100m Butterfly (1:08.54), 100m Butterfly (1:06.52).
Blais, Liam swims for Region of Waterloo Swim Club.
Blais, Liam has competed in 9 meets.