| Pos | Name | YOB | Club | Time | ||||
| 1 | Benedict Chapman | 95 | TEDS | 45.67 | ||||
| 2 | Henry Tighe | 94 | WCPS | 47.12 | ||||
| 3 | Matthew Ryall | 95 | WCPS | 48.20 | ||||
| 4 | Luke Hannan | 94 | RURS | 48.40 | ||||
| 5 | Nicholas Morrison | 95 | RURS | 49.94 | ||||
| 6 | Andrew Whitbread | 95 | TEDS | 51.50 | ||||
| 7 | Connor Stubbs | 95 | GOSS | 52.33 | ||||
| 8 | Jack Carr | 94 | HAWS | 53.95 | ||||
| 9 | Thomas Morris | 94 | HVWS | 55.74 | ||||
| 10 | Robert Patrick | 94 | GOSS | 55.81 | ||||
| 11 | Matthew Morgan | 94 | BBFS | 56.25 | ||||
| 12 | Gary Benson | 94 | HARS | 57.26 | ||||
| 13 | Hector Sharp | 95 | RURS | 59.26 | ||||
| 14 | Alexander Skinner | 95 | GOSS | 59.81 | ||||
| 15 | Samuel Taylor | 94 | BBFS | 1:01.26 | ||||
| 16 | Peter Coleman | 94 | HARS | 1:04.08 | ||||
| 17 | Omar Bourak | 95 | RURS | 1:08.14 | ||||
| Rory McMonagle | 94 | HAWS | DQ:Arms pushed forward under water after turn | |||||
| Michael Muckelt | 95 | HVWS | DQ:1 hand touch at turn | |||||
| Thomas Rampton | 95 | BBFS | DQ:Single arm pull at start | |||||
| John Middleton | 95 | BBFS | DQ:Arms not clearing water | |||||
| Duncan Spence | 95 | BBFS | DQ:Alternating leg kick |