EVENT 424 Boys Open 200m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Maxwell BURDETT | 11 | Leic Peng | 3:05.29 |
| 4 | 3 | Emerson-Blu GUPWELL | 13 | Braunstone | 2:51.72 |
| 5 | 2 | Harry LUCAS | 13 | Braunstone | 2:56.16 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 5 | Freddie BURDETT | 13 | Leic Peng | 2:44.06 |
| 3 | 7 | Harrison BYWATER | 16 | Loughborough | 2:33.97 |
| 4 | 9 | Finn REED | 16 | Loughborough | 2:31.39 |
| 5 | 8 | Connor WHITE | 17 | Coalville | 2:32.42 |
| 6 | 6 | Matthew LONGMAN | 16 | Loughborough | 2:38.61 |
| 7 | 4 | William OXLEY | 13 | Braunstone | 2:46.21 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 11 | Tommy BLACKLAWS | 15 | Leic Sharks | 2:26.62 |
| 2 | 13 | Paul PAGE | 16 | Hinckley | 2:21.10 |
| 3 | 15 | Charlie JAMES | 17 | Market Har | 2:15.57 |
| 4 | 18 | George MOORE | 17 | Hinckley | 2:07.80 |
| 5 | 16 | James LAKE | 16 | Loughborough | 2:14.33 |
| 6 | 14 | Daniel HARRIS | 16 | Coalville | 2:19.27 |
| 7 | 12 | Ethan FORD | 16 | Braunstone | 2:22.97 |
| 8 | 10 | Oliver OXLEY | 17 | Braunstone | 2:30.19 |