| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:17.22 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 100m Backstroke | 1:15.89 | Western Region Short Course Championships | 2026-02-12 |
| 100m Butterfly | 1:13.67 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 100m Butterfly | 1:13.42 | Hall of Fame | 2025-10-18 |
| 100m Freestyle | 1:09.18 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 100m Freestyle | 1:09.06 | Hall of Fame | 2025-10-18 |
| 200m Backstroke | 2:52.06 | MAC Winter Invitational | 2026-01-22 |
| 200m Backstroke | 2:44.36 | Western Region Short Course Championships | 2026-02-12 |
| 200m Butterfly | 3:06.57 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 200m Butterfly | 2:51.57 | Gus Ryder Memorial Cup 2025 | 2025-11-07 |
| 200m Freestyle | 2:40.31 | MAC Winter Invitational | 2026-01-22 |
| 200m Freestyle | 2:27.65 | Western Region Short Course Championships | 2026-02-12 |
| 200m IM | 2:59.01 | MAC Winter Invitational | 2026-01-22 |
| 200m IM | 2:53.44 | Western Region Short Course Championships | 2026-02-12 |
| 400m Freestyle | 5:42.47 | Western Region Long Course Championships | 2025-06-13 |
| 400m Freestyle | 5:31.14 | Gus Ryder Memorial Cup 2025 | 2025-11-07 |
| 50m Backstroke | 35.37 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 50m Backstroke | 34.70 | Hall of Fame | 2025-10-18 |
| 50m Butterfly | 32.69 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 50m Butterfly | 32.89 | Gus Ryder Memorial Cup 2025 | 2025-11-07 |
| 50m Freestyle | 31.06 | MAC Winter Invitational | 2026-01-22 |
| 50m Freestyle | 31.02 | Western Region Short Course Championships | 2026-02-12 |
| 800m Freestyle | 11:38.40 | Western Region Long Course Championships | 2025-06-13 |
| 800m Freestyle | 11:07.64 | Gus Ryder Memorial Cup 2025 | 2025-11-07 |
Hansen, Pia's top personal bests include 100m Backstroke (1:17.22), 100m Backstroke (1:15.89), 100m Butterfly (1:13.67), 100m Butterfly (1:13.42), 100m Freestyle (1:09.18).
Hansen, Pia swims for Hamilton Aquatic Club.
Hansen, Pia has competed in 9 meets.