| Conor Mallett | JERS | 41.09 | 1:25.55 | |
| Alexander Clifford | RURS | 40.71 | 1:28.14 | |
| Jack Parker | LSSS | 41.61 | 1:28.86 | |
| Jordan Mitchell | PORS | 40.25 | 1:29.28 | |
| Joseph Duffy | HVWS | 40.72 | 1:29.45 | |
| Francois Hmida | WEWS | 43.29 | 1:30.15 | |
| William Hastings | RURS | 44.44 | 1:33.00 | |
| Liam Stevens | COSS | 43.41 | 1:33.67 | |
| Christopher Lee | ANDS | 44.24 | 1:34.37 | |
| Robbie Lewis | RURS | 43.29 | 1:34.45 | |
| David Holmes-Evans | RURS | 44.18 | 1:34.58 | |
| Thomas Ostler | RURS | 44.30 | 1:34.77 | |
| James Fisher | WCPS | 44.53 | 1:36.60 | |
| Jonathan Wellstead | HVWS | 47.37 | 1:39.15 | |
| Toby Bishop | IOWS | 48.79 | 1:40.44 | |
| Adam Lewis | WCPS | 1:46.77 | 1:46.77 | |
| Matthew Smith | HARS | 1:49.05 | 1:49.05 | |
| Liam Spencer | JERS | 44.02 | DQ:i hand touch at breaststroke finish |