EVENT 505 Mens Open 50m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 3 | 1 | Lucas Gregory | 97 | Co Coventry | 27.80 |
| 4 | 3 | Toby Griffiths | 97 | Millfield | 27.15 |
| 5 | 2 | Luke Gunning | 97 | Beckenham | 26.45 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 1 | 5 | Luke Greenbank | 97 | Cockermouth | 26.88 |
| 2 | 7 | George Emmins | 97 | Rushmoor Ryl | 26.34 |
| 3 | 9 | Leon Berchie | 97 | Hillingdon | 27.01 |
| 4 | 11 | Alasdair Wright | 97 | Derwentside | 27.15 |
| 5 | 10 | Bradley Ratcliffe | 97 | Co Manch Aq | 27.26 |
| 6 | 8 | Samuel Wild | 98 | Swim Flint | 27.34 |
| 7 | 6 | Elliot Jones | 97 | Buckley | 27.28 |
| 8 | 4 | Nikita Ivanov | 97 | Kelly Coll | 27.40 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 0 | 13 | Jake Dixon | 98 | Co Birm'ham | 26.67 |
| 1 | 15 | Lewis Clough | 98 | Co Salford | 26.61 |
| 2 | 17 | Thomas Gibbs | 97 | Bolton Metro | 26.35 |
| 3 | 19 | Ahmad Attellesey | 95 | Plymouth Lea | 26.49 |
| 4 | 21 | Daniel Briggs | 93 | Co Manch Aq | 25.52 |
| 5 | 20 | Daniel Jones | 93 | Plymouth Lea | 25.73 |
| 6 | 18 | Theodore Pender | 95 | Bolton Metro | 25.96 |
| 7 | 16 | Suleman Butt | 97 | Aberdeen | 25.90 |
| 8 | 14 | Lennard Juhra | 97 | Potsdamer SV | 26.70 |
| 9 | 12 | Nico Campbell | 97 | Hatfield | 26.81 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 0 | 25 | Craig Gibbons | 85 | Hamilton UAE | 26.00 |
| 1 | 31 | Thomas Laxton | 89 | Loughboro Un | 25.07 |
| 2 | 37 | Euan Dunbar | 94 | Co Aberdeen | 25.25 |
| 3 | 43 | Jamie Graham | 93 | Co Glasgow | 25.40 |
| 4 | 49 | Antony James | 89 | Plymouth Lea | 25.09 |
| 5 | 46 | Daniel Scott | 90 | Co Glasgow | 25.37 |
| 6 | 40 | Joseph Marsh | 90 | Birm'ham Uni | 25.66 |
| 7 | 34 | Mark Szaranek | 95 | Carnegie | 25.90 |
| 8 | 28 | Liam Selby | 92 | Stockport Mo | 24.98 |
| 9 | 22 | Andrew McGovern | 92 | Co Aberdeen | 26.96 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 0 | 26 | Adam Fawl | 94 | Loughboro Un | 26.42 |
| 1 | 32 | Eamon Rivers | 92 | Bath Univ | 25.37 |
| 2 | 38 | Warren Cannon | 94 | Bath Univ | 25.42 |
| 3 | 44 | Jamie Thorpe | 92 | Hamilton UAE | 25.42 |
| 4 | 50 | Jack Marriott | 90 | Oxford Uni | 24.65 |
| 5 | 47 | Adam Barrett | 92 | Loughboro Un | 24.93 |
| 6 | 41 | Sam Horrocks | 94 | Co Manch Aq | 25.37 |
| 7 | 35 | Adam Taylor | 96 | Co Sund'land | 25.46 |
| 8 | 29 | William Condron | 95 | Portsmouth N | 25.39 |
| 9 | 23 | Craig Bowman | 96 | Carnegie | 25.86 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 0 | 27 | John Slater | 96 | Basingstoke | 25.83 |
| 1 | 33 | Jasper Van Mierlo | 90 | NED | 25.67 |
| 2 | 39 | Michael Rock | 87 | Co Liverpool | 24.79 |
| 3 | 45 | Harry Needs | 92 | Stockport Mo | 25.13 |
| 4 | 51 | Joeri Verlinden | 88 | NED | DN:C . |
| 5 | 48 | Benjamin Proud | 94 | Plymouth Lea | 24.18 |
| 6 | 42 | James Doolan | 90 | Loughboro Un | 25.09 |
| 7 | 36 | Liam Knight | 94 | Co Peterboro | 25.07 |
| 8 | 30 | Michael Gunning | 94 | Beckenham | 25.79 |
| 9 | 24 | Craig McNally | 92 | Warrender Ba | 25.97 |