EVENT 307 Open/Male 10/11 Yrs 50m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 2 | William Redmond | 10 | Chesterfield | 48.96 |
| 4 | 4 | Henry Hough | 11 | Chesterfield | 47.90 |
| 5 | 3 | Theo Colton | 11 | Rykneld | 48.54 |
| 6 | 1 | Arthur Walters | 11 | Repton | 51.04 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 6 | Ewan Bird | 11 | Long Eaton | 46.68 |
| 2 | 8 | William Whitlam | 10 | DerbyPhoenix | 46.40 |
| 3 | 10 | Jonah Hawksworth | 10 | Derby Excel | 44.23 |
| 4 | 12 | Jiaxiang Zhou | 11 | DerbyPhoenix | 41.63 |
| 5 | 11 | Evan Williams | 10 | Buxton | 43.26 |
| 6 | 9 | James Lee | 11 | Derby Excel | 45.02 |
| 7 | 7 | Adam Pegg | 11 | Etwall | 46.61 |
| 8 | 5 | Joshua Vind | 11 | Repton | 47.69 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 14 | Oliver Taylor | 11 | Dronfield | 40.70 |
| 2 | 16 | Frederick Williams | 11 | Eckington | 40.00 |
| 3 | 18 | Hector Cox | 11 | Repton | 39.40 |
| 4 | 20 | Oliver Smith | 11 | Derby Excel | 35.60 |
| 5 | 19 | Stephen Iankov | 11 | DerbyPhoenix | 35.90 |
| 6 | 17 | Connor Furnish | 10 | Long Eaton | 39.80 |
| 7 | 15 | Ethan Buckley | 11 | BelperMarlin | 40.52 |
| 8 | 13 | Isaac Hawksworth | 11 | Derby Excel | 40.98 |