Heats (Declared Winners) Boys 14/15 Yrs 100m Butterfly
| Place | Name | AaD | Club | Time | | | 50 |
| 1. | Andrew WINSPEAR | 15 | Northumb&Dur | 57.78 | | | 27.51 |
| 2. | Harry NEEDS | 15 | Middlesex Co | 59.00 | | | 27.88 |
| 3. | Mathew MARSHALL | 15 | YorkshireASA | 59.09 | | | 27.98 |
| 4. | George HARRINGTON | 15 | Lancashire C | 59.29 | | | 28.30 |
| 5. | Callum HILLICKS | 15 | SussexCounty | 59.42 | | | 27.92 |
| 6. | Tom KENNEDY | 15 | Surrey Co AS | 59.70 | | | 28.32 |
| 7. | Tom ALLEN | 15 | CheshireCo | 59.76 | | | 27.89 |
| 8. | Michael ORAM | 15 | SomersetCoun | 1:00.12 | | | 28.21 |
| 9. | James SUTHERLAND | 15 | HertfordsASA | 1:00.44 | | | 27.70 |
| 10. | Steven KING | 14 | Berks&SBucks | 1:00.70 | | | 28.39 |
| 11. | Grant WOODS | 15 | South Wales | 1:01.13 | | | 28.75 |
| 12. | Michael GREGORY | 15 | KentCounASA | 1:01.35 | | | 27.54 |
| 13. | Matthew BUTT | 14 | Hampshire Co | 1:01.78 | | | 29.04 |
| 14. | Ross WOOLLEY | 15 | Scotland Eas | 1:02.94 | | | 29.44 |
| 15. | Christopher STAMP | 15 | EssexCounASA | 1:03.16 | | | 29.21 |
| 16. | Ross GARDNER | 15 | Scotland Wes | 1:03.23 | | | 29.50 |
| 17. | Michael WHITE | 15 | Suffolk ASA | 1:04.04 | | | 30.20 |
| 18. | Liam SMITH | 15 | Nottinghamsh | 1:04.05 | | | 29.63 |
| 19. | Craig CARVER | 15 | Derbyshi ASA | 1:04.25 | | | 30.04 |
| 20. | Anthony BUSH | 14 | DorsetCounty | 1:06.42 | | | 30.15 |
