| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:19.22 | 2025 Age Group International LC | 2025-06-05 |
| 100m Backstroke | 1:15.87 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 100m Breaststroke | 1:25.18 | ESWIM New Year's Cup 2026 | 2026-01-09 |
| 100m Breaststroke | 1:21.01 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 100m Butterfly | 1:15.78 | 2025 Central Region Div 2 LC Championships | 2025-06-13 |
| 100m Butterfly | 1:16.52 | Hall of Fame | 2025-10-18 |
| 100m Freestyle | 1:07.75 | 2025 Central Region Div 2 LC Championships | 2025-06-13 |
| 100m Freestyle | 1:07.23 | 2025 MSSAC Harvest Invitational | 2025-11-01 |
| 200m Backstroke | 2:52.00 | 2025 Central Region Div 2 LC Championships | 2025-06-13 |
| 200m Backstroke | 2:43.36 | 2025 MSSAC Harvest Invitational | 2025-11-01 |
| 200m Breaststroke | 3:04.79 | ESWIM New Year's Cup 2026 | 2026-01-09 |
| 200m Breaststroke | 2:50.76 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 200m Freestyle | 2:29.77 | 2025 MSSAC Harvest Invitational | 2025-11-01 |
| 200m IM | 2:44.80 | 2025 Age Group International LC | 2025-06-05 |
| 200m IM | 2:42.07 | 2025 Age Group International SC | 2025-11-27 |
| 400m IM | 5:55.75 | 2025 Age Group International LC | 2025-06-05 |
| 400m IM | 5:36.93 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
| 50m Breaststroke | 39.04 | 2025 Age Group International LC | 2025-06-05 |
| 50m Breaststroke | 36.96 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 50m Butterfly | 32.44 | ESWIM New Year's Cup 2026 | 2026-01-09 |
| 50m Butterfly | 32.22 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 50m Freestyle | 31.30 | 2025 Age Group International LC | 2025-06-05 |
| 50m Freestyle | 30.22 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 800m Freestyle | 11:02.34 | ESWIM Distance Time Trial | 2025-11-11 |
Schwertfeger, Liv's top personal bests include 100m Backstroke (1:19.22), 100m Backstroke (1:15.87), 100m Breaststroke (1:25.18), 100m Breaststroke (1:21.01), 100m Butterfly (1:15.78).
Schwertfeger, Liv swims for Etobicoke Swim Club.
Schwertfeger, Liv has competed in 12 meets.