| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:08.82 | 2025 Age Group International LC | 2025-06-05 |
| 100m Backstroke | 1:04.53 | Hall of Fame | 2025-10-18 |
| 100m Butterfly | 1:01.01 | 2025 Age Group International LC | 2025-06-05 |
| 100m Butterfly | 59.86 | 2025 Age Group International SC | 2025-11-27 |
| 100m Butterfly | 53.56 | ESWIM SCY Time Trial | 2026-02-26 |
| 100m Freestyle | 58.44 | 2025 Age Group International LC | 2025-06-05 |
| 100m Freestyle | 57.22 | Hall of Fame | 2025-10-18 |
| 100m Freestyle | 50.78 | ESWIM SCY Time Trial | 2026-02-26 |
| 200m Butterfly | 2:29.33 | ESWIM New Year's Cup 2026 | 2026-01-09 |
| 200m Butterfly | 2:15.56 | 2025 Age Group International SC | 2025-11-27 |
| 200m Freestyle | 2:10.74 | 2025 Age Group International LC | 2025-06-05 |
| 200m Freestyle | 2:09.22 | Hall of Fame | 2025-10-18 |
| 200m IM | 2:20.34 | 2025 Age Group International SC | 2025-11-27 |
| 400m Freestyle | 4:32.34 | ESWIM 400 Time Trial | 2025-12-16 |
| 400m IM | 5:18.05 | Hall of Fame | 2025-10-18 |
| 50m Butterfly | 28.56 | ESWIM New Year's Cup 2026 | 2026-01-09 |
| 50m Butterfly | 27.35 | 2025 Age Group International SC | 2025-11-27 |
| 50m Butterfly | 25.36 | ESWIM SCY Time Trial | 2026-02-26 |
| 50m Freestyle | 27.29 | 2025 Age Group International LC | 2025-06-05 |
| 50m Freestyle | 26.44 | 2025 Age Group International SC | 2025-11-27 |
Korithoski, Liam's top personal bests include 100m Backstroke (1:08.82), 100m Backstroke (1:04.53), 100m Butterfly (1:01.01), 100m Butterfly (59.86), 100m Butterfly (53.56).
Korithoski, Liam swims for Etobicoke Swim Club.
Korithoski, Liam has competed in 7 meets.