| Event | Record | Holder | Place | Date |
|---|---|---|---|---|
| 50m Freestyle | 23.16 | Finn Harman | Sheffield | 24-Mar-19 |
| 100m Freestyle | 50.25 | Theo Cannon | Oxford | 29-Feb-20 |
| 200m Freestyle | 01:51.41 | Jacques Bonsell | Sheffield | 16-Nov-19 |
| 400m Freestyle | 03:58.36 | Jacques Bonsell | Sheffield | 11-Nov-18 |
| 800m Freestyle | 08:19.78 | Jacques Bonsell | Sheffield | 15-Dec-18 |
| 1500m Freestyle | 15:39.31 | Jacques Bonsell | Sheffield | 15-Dec-18 |
| 50m Backstroke | 26.76 | Alexander Lezard | Sheffield | 23-Mar-19 |
| 100m Backstroke | 57.11 | Alexander Lezard | Oxford | 29-Feb-20 |
| 200m Backstroke | 02:06.77 | Henry Choong | Northolt | 9-Jun-19 |
| 50m Breaststroke | 28.72 | Lewis Waters | Sheffield | 23-Mar-19 |
| 100m Breaststroke | 01:03.16 | Lewis Waters | Sheffield | 23-Mar-19 |
| 200m Breaststroke | 02:22.37 | Lewis Waters | Basildon | 3-Nov-19 |
| 50m Butterfly | 24.67 | Theo Cannon | Sheffield | 17-Nov-19 |
| 100m Butterfly | 55.93 | Joel Carpenter | Oxford | 18-Feb-12 |
| 200m Butterfly | 02:05.07 | Hugo Bellamy | Hatfield | 3-Dec-17 |
| 100m Individual Medley | 57.41 | Theo Cannon | Sheffield | 24-Mar-19 |
| 200m Individual Medley | 02:03.43 | Theo Cannon | Oxford | 29-Feb-20 |
| 400m Individual Medley | 4:40.19 | Matthew Courtis | Sheffield | 11-Nov-17 |
| 4x50m Medley Relay | 01:43.31 | Alexander Lezard Lewis Waters Theo Cannon Finn Harman | Sheffield | 23-Mar-19 |
| 4x100m Medley Relay | 03:51.52 | Alexander Lezard Dominic Holloway Matthew Courtis Marcin Chrapek | Oxford | 24-Feb-18 |
| 4x50m Freestyle Relay | 01:33.21 | Finn Harman Henry Choong Lewis Waters Theo Cannon | Sheffield | 24-Mar-19 |
| 4x100m Freestyle Relay | 03:25.55 | Jacques Bonsell Lewis Waters Hugo Bellamy Theo Cannon | Oxford | 29-Feb-20 |
