Heats (Declared Winners) Boys 14/15 Yrs 100m Butterfly
| Place | Name | AaD | Club | Time | | | 50 |
| 1. | Alasdair Stirling | 15 | Scot West | 58.62 | | | 27.08 |
| 2. | Myles Crouch-anderson | 15 | Northants | 59.02 | | | 28.04 |
| 3. | Sam Van de schootbrugg | 15 | Ox & N Bucks | 59.35 | | | 28.06 |
| 4. | Marc Roost | 15 | Gloucs | 59.51 | | | 27.99 |
| 5. | Ben Hollis | 15 | Essex | 1:00.18 | | | 27.96 |
| 6. | Lewis Smith | 14 | North Wales | 1:01.58 | | | 28.40 |
| 7. | Miles Garner | 14 | Norfolk | 1:01.63 | | | 29.02 |
| 8. | Braden Wren | 15 | Devon | 1:01.80 | | | 28.48 |
| 9. | Daniel Evans | 15 | Shropshire | 1:02.06 | | | 29.50 |
| 10. | Jake Harrison | 15 | Cumbria | 1:02.40 | | | 28.88 |
| 11. | Samuel Briggs | 15 | Bedfordshire | 1:02.76 | | | 30.30 |
| 12. | Thomas Lane | 15 | Lincolnshire | 1:03.08 | | | 29.58 |
| 13. | Liam Knight | 14 | Cambs | 1:03.27 | | | 29.41 |
| 14. | Luke Raggett | 15 | Dorset | 1:03.45 | | | 29.91 |
| 15. | David Smith | 15 | Scot North | 1:03.79 | | | 29.86 |
| 16. | Steve Muddiman | 15 | Worcs | 1:04.33 | | | 29.73 |
| 17. | Kyle Walton | 14 | Notts | 1:05.68 | | | 30.11 |
| 18. | Tom Morcom | 14 | Cornwall | 1:06.38 | | | 30.43 |
