Semi Final Mens 15/16 Yrs 100m Backstroke
| Place | Name | AaD | Club | Time | FINA Pt | | 50 |
| 1. | David Gregory | 15 | Plymouth Lea | 58.41 | 787 | | 28.73 |
| 2. | Adam John | 16 | Stockport Mo | 58.87 | 769 | | 28.94 |
| 3. | Calum Jarvis | 16 | Plymouth Lea | 59.40 | 748 | | 29.17 |
| 4. | Jonathan Hill | 16 | Plymouth Lea | 59.66 | 739 | | 29.06 |
| 5. | Thomas Green | 16 | Bishop Stort | 59.90 | 730 | | 29.04 |
| 6. | Callum Shaw | 16 | Warrender Ba | 59.91 | 729 | | 29.30 |
| 7. | Charlie Boldison | 16 | Barnet Copt | 1:00.26 | 717 | | 29.33 |
| 8. | Craig McNally | 15 | Warrender Ba | 1:00.40 | 712 | | 29.67 |
| 9. | Karl Wolk | 16 | Canada | 1:00.42 | 711 | | 29.74 |
| 10. | Samuel Straughan | 15 | Plymouth Lea | 1:00.45 | 710 | | 29.43 |
| 11. | Dan Ruckwood | 15 | Co Birm'ham | 1:00.46 | 710 | | 29.88 |
| 12. | Zichen Liu | 16 | Derventio | 1:00.83 | 697 | | 29.63 |
| 13. | Matthew Verdon | 15 | Stockport Mo | 1:00.98 | 692 | | 29.80 |
| 14. | Michael Gregory | 16 | Greenwich Bo | 1:01.23 | 683 | | 29.18 |
| 15. | Daniel Stepton | 16 | Romford Town | 1:01.67 | 669 | | 29.78 |
| 16. | Callum Hillicks | 16 | Crawley | 1:01.71 | 667 | | 29.55 |
| 16. | Harry Needs | 16 | Camden Swiss | 1:01.71 | 667 | | 30.14 |
| 18. | Lewis Coleman | 16 | Team Ipswich | 1:01.72 | 667 | | 30.48 |
| 19. | Tariq Miller | 16 | Ealing | 1:02.63 | 638 | | 30.10 |
| 20. | James Burden | 16 | Co Coventry | 1:03.09 | 625 | | 30.26 |
