| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:24.29 | June Performance Meet 2025 | 2025-06-06 |
| 100m Backstroke | 1:14.94 | 2026 Steve Kingston Memorial | 2026-03-06 |
| 100m Breaststroke | 1:28.98 | 2025 Central Region Div 1 LC Championships | 2025-06-20 |
| 100m Breaststroke | 1:23.47 | 2026 Steve Kingston Memorial | 2026-03-06 |
| 100m Butterfly | 1:16.67 | 2025 Central Region Div 1 LC Championships | 2025-06-20 |
| 100m Butterfly | 1:12.67 | 2026 Steve Kingston Memorial | 2026-03-06 |
| 100m Freestyle | 1:09.98 | June Performance Meet 2025 | 2025-06-06 |
| 100m Freestyle | 1:08.31 | OUA & Club Winter Invitational | 2026-01-17 |
| 100m IM | 1:17.69 | 2025 Downtown Sprint Meet | 2025-10-25 |
| 200m Backstroke | 2:42.61 | 2026 Steve Kingston Memorial | 2026-03-06 |
| 200m Breaststroke | 3:10.01 | 2025 Central Region Div 1 LC Championships | 2025-06-20 |
| 200m Breaststroke | 2:55.31 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 200m Butterfly | 2:45.04 | 2026 Joanne Malar Invitational | 2026-01-16 |
| 200m Freestyle | 2:33.77 | June Performance Meet 2025 | 2025-06-06 |
| 200m Freestyle | 2:30.82 | 2025 NYAC Cup | 2025-11-14 |
| 200m IM | 2:50.01 | 2025 Central Region Div 1 LC Championships | 2025-06-20 |
| 200m IM | 2:37.22 | 2026 Steve Kingston Memorial | 2026-03-06 |
| 400m Freestyle | 5:17.02 | OUA & Club Winter Invitational | 2026-01-17 |
| 400m IM | 5:59.27 | 2025 Central Region Div 1 LC Championships | 2025-06-20 |
| 400m IM | 5:40.96 | 2025 MSSAC Open | 2025-12-19 |
| 50m Backstroke | 39.69 | June Performance Meet 2025 | 2025-06-06 |
| 50m Backstroke | 34.35 | Wilmot Aces Spring Classic 2026 | 2026-03-13 |
| 50m Breaststroke | 43.54 | June Performance Meet 2025 | 2025-06-06 |
| 50m Breaststroke | 38.19 | Wilmot Aces Spring Classic 2026 | 2026-03-13 |
| 50m Butterfly | 36.40 | June Performance Meet 2025 | 2025-06-06 |
| 50m Butterfly | 32.68 | Wilmot Aces Spring Classic 2026 | 2026-03-13 |
| 50m Freestyle | 32.74 | June Performance Meet 2025 | 2025-06-06 |
| 50m Freestyle | 29.97 | Wilmot Aces Spring Classic 2026 | 2026-03-13 |
| 800m Freestyle | 10:37.38 | 2025 MSSAC Open | 2025-12-19 |
Quinn, Liam's top personal bests include 100m Backstroke (1:24.29), 100m Backstroke (1:14.94), 100m Breaststroke (1:28.98), 100m Breaststroke (1:23.47), 100m Butterfly (1:16.67).
Quinn, Liam swims for Toronto Swim Club.
Quinn, Liam has competed in 11 meets.