Mens 17/18 Yrs 100m Freestyle - Semi Final
Full Results
| Place | Name | AaD | Club | | Time | | R.T. | FINA Pt | | 50 |
| 1. | Jack Smith | 17 | Plymouth Lea | | 50.78 | | + 0.74 | 788 | | 24.29 |
| 2. | Max Litchfield | 18 | Donc Dartes | | 51.38 | | + 0.64 | 761 | | 24.97 |
| 3. | Karl Morgan | 18 | Nova Cent'n | | 51.67 | | + 0.79 | 748 | | 25.33 |
| 4. | William Condron | 17 | Portsmouth N | | 51.77 | | + 0.86 | 743 | | 25.19 |
| 5. | Bradley Lynch | 17 | Co Birm'ham | | 51.79 | | + 0.72 | 743 | | 25.11 |
| 6. | Brian E O'Sullivan | 18 | IRL | | 51.84 | | + 0.72 | 740 | | 24.76 |
| 7. | Mark Szaranek | 17 | Carnegie | | 51.98 | | + 0.71 | 735 | | 25.02 |
| 8. | John Slater | 17 | Basingstoke | | 52.01 | | + 0.80 | 733 | | 25.11 |
| 9. | Caleb Hughes | 17 | Hatfield | | 52.16 | | + 0.70 | 727 | | 25.59 |
| 10. | Miles Munro | 17 | Beau Sejour | | 52.39 | | + 0.74 | 717 | | 24.21 |
| 11. | Oliver Hempsall | 18 | Nova Cent'n | | 52.51 | | + 0.71 | 712 | | 25.19 |
| 12. | James Clark | 18 | Swindon Dolp | | 52.64 | | + 0.77 | 707 | | 25.28 |
| 13. | Oliver Brache | 17 | Lincoln Vulc | | 52.68 | | + 0.77 | 706 | | 25.52 |
| 14. | Shaun Muscroft | 17 | Co Manch Aq | | 52.75 | | + 0.62 | 703 | | 25.12 |
| 15. | Lowie Vandamme | 18 | VZF BEL | | 52.79 | | + 0.74 | 701 | | 26.04 |
| 16. | Jordan Barlow | 18 | Co Liverpool | | 52.87 | | + 0.70 | 698 | | 25.97 |
| 17. | Joel Kelly | 17 | IRL-Ulster | | 53.09 | | + 0.71 | 689 | | 25.75 |
| 18. | William Harding | 17 | Wirral Metro | | 53.25 | | + 0.68 | 683 | | 25.96 |
| 19. | Conor Munn | 18 | IRL-Ulster | | 53.38 | | -.-- | 678 | | 25.19 |
| 20. | Josh Pankhurst | 17 | Sussex Seaha | | 53.40 | | -.-- | 677 | | 25.85 |
