EVENT 608 Boy 09/10 Yrs 100m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Jack Jones | 9 | Donc Dartes | 2:01.20 |
| 2 | 2 | Hudson Smith | 10 | Co Leeds | 1:59.80 |
| 3 | 3 | Max Clark | 10 | Co Leeds | 1:56.30 |
| 4 | 4 | Seth Jones | 10 | Co Leeds | 1:54.90 |
| 5 | 5 | Archie Ainslie | 10 | Donc Dartes | 1:54.30 |
| 6 | 6 | Christopher Goodwin | 10 | Co Sheffield | 1:53.40 |
| 7 | 7 | Angus Young | 10 | Co Leeds | 1:50.30 |
| 8 | 8 | Caleb Britton | 10 | Tadcaster | 1:47.80 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 10 | Oliver Barrett | 10 | Co Leeds | 1:47.00 |
| 1 | 12 | Will Bragg | 10 | Rotherham Mo | 1:42.70 |
| 2 | 14 | Finley Moore | 10 | Cleethorpes | 1:37.50 |
| 3 | 16 | Halo Bentley-Hicks | 10 | Co Leeds | 1:34.70 |
| 4 | 18 | Charlie Haslingden | 10 | Co Sheffield | 1:30.60 |
| 5 | 17 | Harry Osborne | 10 | Rotherham Mo | 1:32.30 |
| 6 | 15 | George Harrison | 10 | Pocklington | 1:35.20 |
| 7 | 13 | Shaé Bryant | 10 | Co Leeds | 1:39.10 |
| 8 | 11 | Harry Brown | 10 | King'f Scar | 1:44.80 |
| 9 | 9 | Oscar O'Donnell | 9 | Co Leeds | 1:47.40 |