| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | James Woodward | 21 | Hatfield | 51.93 |
| 2 | 2 | Jacques Bonsell | 22 | Co Cambridge | 51.26 |
| 3 | 3 | William Kearsey | 24 | Hatfield | 50.84 |
| 4 | 4 | Theo Cannon | 22 | Co Cambridge | 50.49 |
| 5 | 5 | Michael Klimaszewski | 17 | Hatfield | 50.63 |
| 6 | 6 | Michael Ripper | 20 | Co St Albans | 50.86 |
| 7 | 7 | Ben Blowers | 19 | Co Norwich | 51.34 |
| 8 | 8 | Matthew Baker | 15 | West Suffolk | 51.98 |