EVENT 413 Open/Male 10/14 Yrs 100m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 1 | William Smith | 11 | Derby Excel | 1:49.99 |
| 3 | 3 | Jack Carthey | 11 | Repton | 1:49.73 |
| 4 | 5 | Evan Williams | 11 | Buxton | DQ:4..4 |
| 5 | 4 | Theo Colton | 12 | Rykneld | 1:54.50 |
| 6 | 2 | William Redmond | 11 | Chesterfield | DQ:8..2 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 9 | Jonah Hawksworth | 11 | Derby Excel | 1:29.38 |
| 1 | 15 | Isaac Hawksworth | 12 | Derby Excel | 1:30.07 |
| 2 | 21 | Thomas Pope | 13 | Long Eaton | 1:20.77 |
| 3 | 27 | Arlo Hems Gillson | 13 | Repton | 1:21.32 |
| 4 | 33 | George Cotton | 14 | Derby Excel | 1:12.13 |
| 5 | 30 | Flynn Clark | 13 | Ripley | 1:18.15 |
| 6 | 24 | Flynn Chidlow | 14 | Ripley | 1:16.32 |
| 7 | 18 | Frederick Williams | 12 | Eckington | 1:23.32 |
| 8 | 12 | Connor Furnish | 11 | Long Eaton | 1:28.23 |
| 9 | 6 | Ethan Buckley | 12 | BelperMarlin | 1:28.14 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 10 | Jack Adsetts | 12 | Chesterfield | 1:41.92 |
| 1 | 16 | Noah Lodge | 14 | Eckington | 1:26.25 |
| 2 | 22 | Ayrton Porter | 13 | Repton | 1:24.45 |
| 3 | 28 | Gabriel Thursfield | 13 | Repton | 1:22.72 |
| 4 | 34 | Cole Burke | 14 | BelperMarlin | 1:13.92 |
| 5 | 31 | Kamran Parekh | 14 | DerbyPhoenix | 1:20.70 |
| 6 | 25 | Isaac Ebanks | 14 | Derby Excel | 1:28.10 |
| 7 | 19 | Harry John | 14 | Repton | 1:21.66 |
| 8 | 13 | Archie Barrett | 13 | BelperMarlin | 1:27.56 |
| 9 | 7 | Oscar Parkinson | 12 | Etwall | 1:27.47 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 11 | Fraser Pyefinch | 12 | Long Eaton | 1:28.65 |
| 1 | 17 | Harry Pollicott | 14 | Ripley | 1:19.75 |
| 2 | 23 | Lincoln Wilson | 12 | Repton | 1:25.02 |
| 3 | 29 | Oliver Smith | 12 | Repton | 1:21.91 |
| 4 | 35 | Alex Bates | 14 | Chesterfield | 1:03.28 |
| 5 | 32 | Finlay Bird | 14 | Long Eaton | 1:11.43 |
| 6 | 26 | Tyler Shaw | 13 | Derby Excel | 1:19.58 |
| 7 | 20 | Alexander Thompson | 14 | Derby Excel | 1:22.28 |
| 8 | 14 | Max Attwater | 14 | Chesterfield | 1:36.58 |
| 9 | 8 | Fraser Manley | 12 | Repton | 1:36.58 |