Boys 14/15 Yrs 100m Breaststroke - Heats (Declared Winners)
Full Results
| Place | Name | YoB | Club | | Time | | R.T. | FINA Pt | | 50 |
| 1. | Cameron Williams | (04) | Devon | | 1:04.31 | | + 0.63 | | | 30.58 |
| 2. | Billy Wotton | (03) | Ox & N Bucks | | 1:04.59 | | + 0.68 | | | 30.56 |
| 3. | Jason Robson | (03) | Yorkshire | | 1:04.79 | | + 0.62 | | | 30.18 |
| 4. | William Ellington | (03) | Somerset | | 1:04.83 | | + 0.67 | | | 30.68 |
| 5. | Angus Allison | (03) | Scot East | | 1:06.66 | | + 0.71 | | | 31.31 |
| 6. | Matthew Garrity | (04) | Scot West | | 1:06.79 | | + 0.71 | | | 31.53 |
| 7. | Ryan Zhao | (04) | N & Durham | | 1:07.10 | | + 0.76 | | | 31.68 |
| 8. | Drew McGregor | (03) | Dorset | | 1:07.21 | | + 0.64 | | | 31.40 |
| 9. | Lewis Binning | (03) | Essex | | 1:07.51 | | + 0.72 | | | 31.62 |
| 10. | James Quinn | (04) | Cambs | | 1:07.52 | | + 0.73 | | | 31.29 |
| 11. | Aneurin Davies | (04) | Swim Wales W | | 1:07.73 | | + 0.80 | | | 32.32 |
| 12. | Theodore Thompson | (03) | Surrey | | 1:07.89 | | + 0.69 | | | 31.92 |
| 13. | Harvey Freeman | (04) | Northants | | 1:08.03 | | + 0.67 | | | 31.86 |
| 14. | Luke Ibbeson | (03) | Berks&SBucks | | 1:08.13 | | + 0.62 | | | 31.39 |
| 15. | Max Hanson | (03) | Middlesex | | 1:08.25 | | + 0.75 | | | 31.99 |
| 16. | Finn Jeffery | (03) | Suffolk | | 1:08.33 | | + 0.84 | | | 31.85 |
| 17. | Pravin Mahendrakumar | (03) | Kent | | 1:08.59 | | + 0.74 | | | 31.64 |
| 18. | Jake Reynolds | (04) | Lancashire | | 1:10.36 | | + 0.70 | | | 32.78 |
| 19. | Jensen Coppen | (03) | Swim Wales E | | 1:10.44 | | + 0.72 | | | 32.22 |
| 20. | Hosea Waweru | (04) | Leics | | 1:10.70 | | + 0.81 | | | 33.34 |
