| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:22.96 | 2022-10-16 | |
| 100m Breaststroke | 1:33.26 | 2022-10-15 | |
| 100m Butterfly | 1:28.93 | 2022-10-15 | |
| 100m Freestyle | 1:10.67 | 2022-10-16 | |
| 200m Backstroke | 2:55.51 | 2020-01-12 | |
| 200m Breaststroke | 3:24.47 | 2020-01-12 | |
| 200m Freestyle | 2:42.29 | 2023-05-13 | |
| 400m Freestyle | 5:29.24 | 2024-12-13 | |
| 50m Backstroke | 38.44 | 2022-10-15 | |
| 50m Breaststroke | 42.83 | 2022-10-16 | |
| 50m Butterfly | 35.56 | 2022-10-16 | |
| 50m Freestyle | 32.55 | 2022-10-15 | |
| 800m Freestyle | 11:39.10 | 2020-01-10 |
Rubis, Ysabelle's top personal bests include 100m Backstroke (1:22.96), 100m Breaststroke (1:33.26), 100m Butterfly (1:28.93), 100m Freestyle (1:10.67), 200m Backstroke (2:55.51).
Rubis, Ysabelle swims for York Swim Club.