| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:28.13 | 2025 ISC Bennett Cup | 2025-11-07 |
| 100m Breaststroke | 1:31.68 | 2026 VIR SC Championships | 2026-01-30 |
| 100m Butterfly | 1:21.15 | BC Winter Divisionals - Island & Coastal Vancouver | 2026-02-20 |
| 100m Freestyle | 1:11.40 | 2026 VIR SC Championships | 2026-01-30 |
| 200m Backstroke | 3:11.96 | 2025 ISC Bennett Cup | 2025-11-07 |
| 200m Breaststroke | 3:18.14 | BC Winter Divisionals - Island & Coastal Vancouver | 2026-02-20 |
| 200m Freestyle | 2:42.00 | 2026 Stingrays Annual Spring Break Invitational | 2026-03-06 |
| 200m IM | 2:51.23 | 2026 Stingrays Annual Spring Break Invitational | 2026-03-06 |
| 400m Freestyle | 5:47.31 | 2026 VIR SC Championships | 2026-01-30 |
| 400m IM | 6:26.38 | 2025 Stingrays' Annual Winter Break Invitational | 2025-12-12 |
| 50m Backstroke | 41.52 | 2025 ISC Bennett Cup | 2025-11-07 |
| 50m Breaststroke | 42.71 | BC Winter Divisionals - Island & Coastal Vancouver | 2026-02-20 |
| 50m Butterfly | 35.43 | 2026 Stingrays Annual Spring Break Invitational | 2026-03-06 |
| 50m Freestyle | 35.71 | 12 & Under Jamboree | 2025-05-10 |
Nicholl, Tabitha's top personal bests include 100m Backstroke (1:28.13), 100m Breaststroke (1:31.68), 100m Butterfly (1:21.15), 100m Freestyle (1:11.40), 200m Backstroke (3:11.96).
Nicholl, Tabitha swims for Island Swimming Club.
Nicholl, Tabitha has competed in 7 meets.