| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:01.89 | VPSC Fall Invitational 2025 | 2025-10-18 |
| 100m Breaststroke | 1:15.36 | 2019-01-17 | |
| 100m Butterfly | 28.22 | 2021-12-17 | |
| 100m Freestyle | 53.70 | 2026 U SPORTS Swimming Championships | 2026-03-12 |
| 100m IM | 1:02.91 | UBC University Cup Pacific 2025 | 2025-11-08 |
| 100m Medley | 28.22 | 2021-12-17 | |
| 1500m Freestyle | 16:22.05 | 2019-01-17 | |
| 200m Backstroke | 2:06.09 | 2026 U SPORTS Swimming Championships | 2026-03-12 |
| 200m Breaststroke | 2:42.02 | 2019-01-17 | |
| 200m Butterfly | 28.22 | 2021-12-17 | |
| 200m Freestyle | 1:54.25 | 2026 U SPORTS Swimming Championships | 2026-03-12 |
| 200m Medley | 28.22 | 2021-12-17 | |
| 400m Freestyle | 4:06.02 | 2019-12-14 | |
| 400m Medley | 28.22 | 2021-12-17 | |
| 5000m Freestyle | 59:22.48 | 2017-08-12 | |
| 50m Backstroke | 29.32 | 2019-12-15 | |
| 50m Breaststroke | 34.38 | VPSC Fall Invitational 2025 | 2025-10-18 |
| 50m Butterfly | 28.22 | 2021-12-17 | |
| 50m Freestyle | 25.35 | UBC University Cup Pacific 2025 | 2025-11-08 |
| 800m Freestyle | 8:29.61 | 2024-11-22 |
O'Croinin, Emma's top personal bests include 100m Backstroke (1:01.89), 100m Breaststroke (1:15.36), 100m Butterfly (28.22), 100m Freestyle (53.70), 100m IM (1:02.91).
O'Croinin, Emma swims for University of British Columbia.
O'Croinin, Emma has competed in 11 meets.