| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:12.65 | 2025 OAK Brad Townsend Fall Classic | 2025-10-17 |
| 100m Breaststroke | 1:23.69 | 2025 OAK Brad Townsend Fall Classic | 2025-10-17 |
| 100m Butterfly | 1:08.63 | Scar Pan Am Winter Classic | 2026-01-16 |
| 100m Butterfly | 1:06.00 | 2025 NYAC Cup | 2025-11-14 |
| 100m Freestyle | 1:02.72 | 2025 Age Group International LC | 2025-06-05 |
| 100m Freestyle | 1:02.10 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 100m IM | 1:11.93 | 2025 OAK Brad Townsend Fall Classic | 2025-10-17 |
| 200m Butterfly | 2:39.38 | 2025 Age Group International LC | 2025-06-05 |
| 200m Butterfly | 2:28.36 | Walker Invitational | 2025-10-25 |
| 200m Freestyle | 2:16.86 | 2025 Age Group International LC | 2025-06-05 |
| 200m Freestyle | 2:12.36 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 200m IM | 2:33.11 | 2025 OAK Brad Townsend Fall Classic | 2025-10-17 |
| 400m Freestyle | 4:52.17 | 2025 Age Group International LC | 2025-06-05 |
| 400m Freestyle | 4:41.18 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 400m IM | 5:19.44 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 50m Butterfly | 30.02 | 2025 NYAC Cup | 2025-11-14 |
| 50m Freestyle | 28.89 | 2025 Age Group International LC | 2025-06-05 |
| 50m Freestyle | 28.62 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 800m Freestyle | 10:07.95 | 2025 Age Group International LC | 2025-06-05 |
| 800m Freestyle | 10:06.95 | 2025 NYAC Cup | 2025-11-14 |
Er, Rosalie's top personal bests include 100m Backstroke (1:12.65), 100m Breaststroke (1:23.69), 100m Butterfly (1:08.63), 100m Butterfly (1:06.00), 100m Freestyle (1:02.72).
Er, Rosalie swims for Oakville Aquatic Club.
Er, Rosalie has competed in 6 meets.