| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Breaststroke | 1:08.72 | Edmonton Open 2026 | 2026-01-30 |
| 100m Breaststroke | 1:07.33 | UBC University Cup Pacific 2025 | 2025-11-08 |
| 100m Butterfly | 1:07.11 | Norm Banfield Memorial Open Development Meet | 2025-10-03 |
| 100m Freestyle | 59.27 | ManSask Provincial Championships | 2025-07-10 |
| 100m Freestyle | 57.88 | Cougars/Bisons Dual Meet #1 | 2025-10-11 |
| 100m IM | 1:05.20 | Cougars/Bisons Dual Meet #1 | 2025-10-11 |
| 200m Breaststroke | 2:30.76 | 2025 Canada West Swimming Championship | 2025-11-28 |
| 200m IM | 2:29.06 | Edmonton Open 2026 | 2026-01-30 |
| 200m IM | 2:20.18 | 2025 Canada West Swimming Championship | 2025-11-28 |
| 50m Breaststroke | 31.07 | Edmonton Open 2026 | 2026-01-30 |
| 50m Breaststroke | 30.64 | 2025 Canada West Swimming Championship | 2025-11-28 |
| 50m Butterfly | 29.15 | ManSask Provincial Championships | 2025-07-10 |
| 50m Butterfly | 28.53 | UBC University Cup Pacific 2025 | 2025-11-08 |
| 50m Freestyle | 27.67 | ManSask Provincial Championships | 2025-07-10 |
| 50m Freestyle | 26.20 | 2025 Canada West Swimming Championship | 2025-11-28 |
Bennett, Declan's top personal bests include 100m Breaststroke (1:08.72), 100m Breaststroke (1:07.33), 100m Butterfly (1:07.11), 100m Freestyle (59.27), 100m Freestyle (57.88).
Bennett, Declan swims for University of Regina Cougars Swimming.
Bennett, Declan has competed in 9 meets.