EVENT 308 Mens Open 50m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 3 | 1 | Theodore Pender | 18 | Bolton Metro | 25.96 |
| 4 | 3 | Jack Thorpe | 19 | Edinburgh Un | 25.93 |
| 5 | 2 | Jack Burchell | 19 | Loughboro Un | 25.94 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 7 | Samuel Straughan | 20 | Loughboro Un | 25.88 |
| 1 | 13 | Sean Campsie | 19 | Warrender Ba | 25.63 |
| 2 | 19 | Adam Taylor | 17 | Co Sund'land | 25.28 |
| 3 | 25 | Jamie Thorpe | 21 | Leic Peng | 24.90 |
| 4 | 31 | Daniel Scott | 23 | Co Glasgow | 24.65 |
| 5 | 28 | James Doolan | 23 | Loughboro Un | 24.74 |
| 6 | 22 | Sam Horrocks | 19 | Co Manch Aq | 25.04 |
| 7 | 16 | Eamon Rivers | 21 | Bath Univ | 25.37 |
| 8 | 10 | Andrew McGovern | 21 | Co Aberdeen | 25.84 |
| 9 | 4 | L Clifford-Stephenson | 20 | Killerwhales | 25.93 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 8 | Edward Allchorne | 19 | Bath Univ | 25.88 |
| 1 | 14 | Michael Gunning | 19 | Beckenham | 25.53 |
| 2 | 20 | Euan Dunbar | 19 | Co Aberdeen | 25.25 |
| 3 | 26 | Adam Brown | 24 | Hatfield | 24.77 |
| 4 | 32 | Benjamin Proud | 19 | Plymouth Lea | 23.98 |
| 5 | 29 | Thomas Laxton | 24 | Loughboro Un | 24.73 |
| 6 | 23 | Liam Selby | 21 | Stockport Mo | 24.98 |
| 7 | 17 | William Condron | 18 | Portsmouth N | 25.32 |
| 8 | 11 | Benjamin Lowe | 19 | Millfield | 25.72 |
| 9 | 5 | Adam Fawl | 19 | Loughboro Un | 25.90 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 9 | Masai Zebchaka | 34 | Plymouth Lea | 25.85 |
| 1 | 15 | Daniel Briggs | 20 | Co Manch Aq | 25.52 |
| 2 | 21 | Martin Bleaken | 20 | S Bournem'th | 25.20 |
| 3 | 27 | Harry Needs | 21 | Stockport Mo | 24.75 |
| 4 | 33 | Antony James | 24 | Plymouth Lea | 23.93 |
| 5 | 30 | Jamie Graham | 20 | Co Glasgow | 24.70 |
| 6 | 24 | Liam Knight | 19 | Co Peterboro | 24.92 |
| 7 | 18 | Mark Szaranek | 18 | Carnegie | 25.31 |
| 8 | 12 | Edward Gilbertson | 21 | Caradon | 25.67 |
| 9 | 6 | Matthew Bray | 17 | Co Bristol | 25.90 |