Semi Final Mens Open 100m Backstroke
| Place | Name | AaD | Club | Time | GB Pts | | 50 |
| 1. | Liam TANCOCK | 22 | Loughboro Un | 53.98 | 997 | | 25.73 |
| 2. | Matthew CLAY | 24 | Swansea Perf | 55.98 | 916 | | 27.18 |
| 3. | Gregor TAIT | 28 | Co Edinburgh | 56.23 | 906 | | 26.98 |
| 4. | Marco LOUGHRAN | 18 | Guildford Ct | 56.31 | 903 | | 27.59 |
| 5. | James GODDARD | 24 | Stockport Mo | 56.68 | 889 | | 27.37 |
| 6. | Scott HOUSTON | 19 | StirlingSwim | 57.05 | 875 | | 27.74 |
| 7. | Simon BURNETT | 24 | Slough Eton | 57.13 | 872 | | 27.17 |
| 8. | Scott HATHAWAY | 19 | Loughboro Un | 57.64 | 853 | | 27.96 |
| 9. | Andrew HODGSON | 20 | Swansea Perf | 58.52 | 822 | | 28.42 |
| 10. | Simon BIRCH | 22 | Stockport Mo | 58.64 | 817 | | 28.67 |
| 11. | John SARGENT | 21 | Hatfield | 58.69 | 816 | | 28.39 |
| 12. | Jonathan AUDIS | 26 | Swindon Dolp | 58.97 | 806 | | 28.33 |
| 13. | Geoffrey CHEAH | 16 | Bracknell | 58.99 | 805 | | 28.61 |
| 14. | James COWBURN | 16 | Stockport Mo | 59.40 | 791 | | 29.29 |
| 15. | William PURNELL | 18 | Warrender Ba | 59.69 | 781 | | 28.91 |
| 16. | James LOVATT | 18 | Derventio | 59.84 | 776 | | 28.96 |
| 17. | Simon PRAGNELL | 18 | Eastleigh | 1:01.14 | 735 | | 29.48 |
| 18. | Adam HARRINGTON | 16 | Crawley | 1:02.42 | 695 | | 30.08 |
| Charl VAN ZYL | 16 | South Africa | DNC | | | |
