| Event | Record | Holder | Place | Date |
|---|---|---|---|---|
| 50m Freestyle | 24.19 | Theo Cannon | Corby | 21-Dec-19 |
| 100m Freestyle | 52.86 | Henry Choong | Tollcross | 27-Jul-19 |
| 200m Freestyle | 01:54.11 | Jacques Bonsell | Sheffield | 15-Feb-20 |
| 400m Freestyle | 04:06.37 | Jacques Bonsell | Sheffield | 16-Feb-20 |
| 800m Freestyle | 08:49.59 | Jacques Bonsell | Sheffield | 15-Feb-19 |
| 1500m Freestyle | 16:21.04 | Jacques Bonsell | Sheffield | 14-Feb-20 |
| 50m Backstroke | 28.81 | Alex Lezard | Sheffield | 15-Feb-20 |
| 100m Backstroke | 01:01.35 | Tom Rootsey | Sheffield | 15-Feb-09 |
| 200m Backstroke | 02:14.57 | Tom Rootsey | Norwich | 4-May-09 |
| 50m Breaststroke | 29.15 | Lewis Waters | Swansea | 19-Apr-19 |
| 100m Breaststroke | 01:04.53 | Lewis Waters | Swansea | 20-Apr-19 |
| 200m Breaststroke | 02:25.80 | Lewis Waters | Sheffield | 15-Feb-20 |
| 50m Butterfly | 25.52 | Theo Cannon | Luton | 6-May-19 |
| 100m Butterfly | 56.45 | Hugo Bellamy | Sheffield | 1-Aug-19 |
| 200m Butterfly | 02:07.05 | Hugo Bellamy | Sheffield | 3-Aug-18 |
| 200m Individual Medley | 02:10.25 | Theo Cannon | Tollcross | 27-Jul-19 |
| 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 | 03:58,72 | Alexander Lezard Lewis Waters Theo Cannon Jacques Bonsell | Sheffield | 15-Feb-20 |
| 4x50m Freestyle Relay | 01:42.39 | Viktor Stein Tom Close Daniel O'Dea Tom Edwards | Bath | 25-Nov-06 |
| 4x100m Freestyle Relay | 03:31.82 | Henry Choong Finn Harman Theo Cannon Hugo Bellamy | Luton | 5-May-19 |
| 4x200m Freestyle Relay | 7:47.45 | Hugo Bellamy Henry Choong Theo Cannon Jacques Bonsell | Tollcross | 26-Jul-19 |
