| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Ben Keeping | 13 | West Dorset | 41.09 |
| 2 | 2 | Miron Wozniak | 13 | Poole | 39.96 |
| 3 | 3 | Lucas Garel-Jones | 13 | S Bournem'th | 37.24 |
| 4 | 4 | Wilfred Leigh | 13 | Blandford | 35.11 |
| 5 | 5 | Leo Wisbey | 13 | Poole | 35.79 |
| 6 | 6 | Isaac Thring | 13 | Seagulls SC | 39.27 |
| 7 | 7 | C Bernal Mezzetti | 13 | Poole | 40.33 |