| Event | Record | Holder | Place | Date |
|---|---|---|---|---|
| 50m Freestyle | 24.66 | Finn Harman | London Aquatics Centre | 1-Apr-18 |
| 100m Freestyle | 53.60 | Henry Choong | Luton | 29-Apr-17 |
| 200m Freestyle | 01:56.98 | Andy Corley | Sheffield | 14-Feb-09 |
| 400m Freestyle | 04:08.32 | Andy Corley | Sheffield | 15-Feb-09 |
| 1500m Freestyle | 16:58.02 | Fred Clatworthy | Leeds | 12-Mar-94 |
| 50m Backstroke | 28.88 | Tom Rootsey | Sheffield | 14-Feb-09 |
| 100m Backstroke | 01:01.35 | Tom Rootsey | Sheffield | 15-Feb-09 |
| 200m Backstroke | 02:15.10 | Tom Rootsey | Sheffield | 14-Feb-09 |
| 50m Breaststroke | 29.89 | Dominic Holloway | London Aquatics Cenre | 1-Apr-18 |
| 100m Breaststroke | 01:06.61 | Lewis Waters | Swansea | 31-Mar-18 |
| 200m Breaststroke | 02:30.82 | Dan Mikulskis | Leeds | 22-Feb-02 |
| 50m Butterfly | 26.25 | Hugo Bellamy | Norwich | 7-May-18 |
| 100m Butterfly | 57.04 | Hugo Bellamy | Norwich | 5-May-18 |
| 200m Butterfly | 02:08.80 | Hugo Bellamy | Edinburgh | 1-Mar-18 |
| 200m Individual Medley | 02:16.15 | Dan Mikulskis | Leeds | 22-Feb-02 |
| 400m Individual Medley | 04:57.70 | Dan Mikulskis | Leeds | 27-Feb-00 |
| 4x50m Medley Relay | 01:54.05 | Daniel O'Dea Mike Scott Viktor Stein Michael Roy | Bath | 20-Oct-02 |
| 4x100m Medley Relay | 04:08.72 | Henry Choong Dominic Holloway Calum Ferguson Erik Sullivan | Norwich | 30-Apr-16 |
| 4x50m Freestyle Relay | 01:42.39 | Viktor Stein Tom Close Daniel O'Dea Tom Edwards | Bath | 25-Nov-06 |
| 4x100m Freestyle Relay | 03:48.77 | Julian Halcox Julian Plumley Miguel Ortiz Andrew Ground | Blackpool | 23-Mar-87 |
