| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:08.87 | 2026 BAD Spring Invitational Meet | 2026-03-06 |
| 100m Butterfly | 1:07.28 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
| 100m Freestyle | 59.13 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
| 100m IM | 1:11.17 | 2025 RHAC Summer League | 2025-07-18 |
| 200m Backstroke | 2:32.15 | 2026 BAD Spring Invitational Meet | 2026-03-06 |
| 200m Butterfly | 2:39.35 | Winter Swimfest 2026 | 2026-01-24 |
| 200m Freestyle | 2:15.66 | 2025 MSSAC Harvest Invitational | 2025-11-01 |
| 200m IM | 2:30.34 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
| 400m Freestyle | 5:00.62 | VAC - 36th Roy Jacobson Inv. | 2025-12-05 |
| 50m Backstroke | 31.40 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
| 50m Butterfly | 29.88 | Winter Swimfest 2026 | 2026-01-24 |
| 50m Freestyle | 27.68 | 2026 BAD Spring Invitational Meet | 2026-03-06 |
Crawhall-Stein, Sebastien's top personal bests include 100m Backstroke (1:08.87), 100m Butterfly (1:07.28), 100m Freestyle (59.13), 100m IM (1:11.17), 200m Backstroke (2:32.15).
Crawhall-Stein, Sebastien swims for York Swim Club.
Crawhall-Stein, Sebastien has competed in 9 meets.