EVENT 404 Boy Open 200m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 1 | Angus YOUNG | 10 | Co Leeds | 4:30.00 |
| 3 | 3 | Gethin SINCLAIR | 12 | Co Sheffield | 3:40.00 |
| 4 | 5 | Hayden LAM | 11 | Co Leeds | 3:30.00 |
| 5 | 4 | Abdullah MOKHLISSE | 12 | Co Leeds | 3:38.10 |
| 6 | 2 | Hudson SMITH | 10 | Co Leeds | 4:00.00 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 7 | Matei STOICESCU | 12 | Co Leeds | 3:30.00 |
| 1 | 9 | Samuel HILL | 12 | Co Leeds | 3:06.50 |
| 2 | 11 | Thomas BROOKS | 13 | Spenborough | 3:03.51 |
| 3 | 13 | James CAM | 14 | Rotherham Mo | 2:51.80 |
| 4 | 15 | Joseph HALL | 13 | Co Leeds | 2:42.70 |
| 5 | 14 | Will BYRAM | 14 | Co Wakefield | 2:45.00 |
| 6 | 12 | Samuel JACKSON | 13 | Spenborough | 3:00.00 |
| 7 | 10 | Ruben ANDERSON | 12 | Co Sheffield | 3:04.37 |
| 8 | 8 | Oscar GAVELLE | 12 | Rotherham Mo | 3:21.98 |
| 9 | 6 | Oliver BARRETT | 10 | Co Leeds | 3:30.00 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 17 | Daniel JACKSON | 15 | Spenborough | 2:40.90 |
| 1 | 19 | William HICKLIN | 12 | Co Leeds | 2:33.80 |
| 2 | 21 | George BROOKS | 14 | Co Leeds | 2:28.30 |
| 3 | 23 | Finlay WILLIAMS | 17 | Co Leeds | 2:25.00 |
| 4 | 25 | Daniel MENZER | 18 | Bo Barnsley | 2:16.90 |
| 5 | 24 | Henry FIRTH | 16 | Co Leeds | 2:21.59 |
| 6 | 22 | Oscar TAYLOR | 16 | Cleethorpes | 2:26.30 |
| 7 | 20 | Callum RAVEN | 13 | Co Leeds | 2:33.70 |
| 8 | 18 | Thomas WOOFFINDIN | 12 | Co Wakefield | 2:35.20 |
| 9 | 16 | Mathew BRADLEY | 15 | Cleethorpes | 2:41.00 |