Boys 15/16 Yrs 100m Breaststroke - Semi Final
Full Results
| Place | Name | AaD | Club | | Time | R.T. | FINA Pt | | 50 |
| 1. | Alexander Murphy | 16 | Ealing | | 1:04.11 | + 0.76 | 762 | | 30.26 |
| 2. | Adam Peaty | 16 | Co Derby | | 1:04.92 | + 0.77 | 734 | | 30.56 |
| 3. | Luke Howdle | 16 | Nova Cent'n | | 1:06.77 | + 0.85 | 675 | | 32.17 |
| 4. | Jack Barker | 16 | Co Carlisle | | 1:07.55 | + 0.70 | 652 | | 31.31 |
| 5. | Joshua Winnicott | 15 | Co Birm'ham | | 1:07.96 | + 0.74 | 640 | | 32.06 |
| 6. | Alexander Gregory | 16 | Plymouth Lea | | 1:08.02 | + 0.70 | 638 | | 31.85 |
| 7. | Louis Oliver | 15 | Co Birm'ham | | 1:08.21 | + 0.80 | 633 | | 31.47 |
| 8. | James Dawson | 16 | Co Bradford | | 1:08.58 | + 0.81 | 623 | | 31.82 |
| 9. | James Robinson | 16 | Royal Wolv | | 1:08.63 | + 0.77 | 621 | | 32.71 |
| 10. | James Latham | 15 | Derventio | | 1:08.65 | + 0.74 | 621 | | 31.80 |
| 11. | Daniel Lim | 15 | Warrender Ba | | 1:08.93 | + 0.72 | 613 | | 32.56 |
| 12. | Nicholas Grainger | 16 | Co Sheffield | | 1:09.02 | + 0.91 | 611 | | 32.62 |
| 13. | Jack Burton | 15 | S Bournem'th | | 1:10.03 | + 0.72 | 585 | | 32.99 |
| 14. | Paul Angus | 15 | Ireland | | 1:10.05 | + 0.69 | 584 | | 32.71 |
| 15. | Niall Grant | 15 | Plymouth Lea | | 1:10.34 | + 0.64 | 577 | | 32.37 |
| 16. | Hiroki Harazawa | 15 | Wandsworth | | 1:10.35 | + 0.70 | 577 | | 33.18 |
| 17. | Roy Sterling | 16 | Llandudno | | 1:10.62 | + 0.73 | 570 | | 32.92 |
| 18. | Courtney Dos Santos | 16 | Co Milton K | | 1:11.29 | + 0.73 | 554 | | 32.84 |
| | Jamie Magee | 16 | Co Newcastle | | DQ S- | | | | |
| | Rory Shirley | 16 | Co Glasgow | | DQ ST- | | | | |
