EVENT 605 Mens Open 50m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 3 | 1 | Andrew Raine | 99 | Halifax | 26.28 |
| 4 | 3 | Benjamin Staig | 99 | Mt Kelly | 26.28 |
| 5 | 2 | Ben Hooper | 00 | Bo Of Harrow | 26.28 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 1 | 4 | Daniel Morley | 01 | Derwentside | 26.28 |
| 2 | 6 | Harry Stacey | 00 | Shiverers | 26.21 |
| 3 | 8 | David Shipman | 00 | Potters Bar | 26.20 |
| 4 | 10 | Alex Mason | 01 | Chester Le S | 26.13 |
| 5 | 9 | Alisdair Stout | 00 | Co Manch Aq | 26.16 |
| 6 | 7 | Harry Maishman | 99 | Maxwell | 26.21 |
| 7 | 5 | Adam Kirkwood | 99 | N Ayrshire | 26.23 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 1 | 12 | Daniel Austin | 99 | Co Salford | 26.12 |
| 2 | 14 | Simon Newton | 99 | Maidstone | 26.08 |
| 3 | 16 | Thomas Downs | 99 | Exeter City | 25.99 |
| 4 | 18 | Mark Laing | 99 | Halesowen | 25.87 |
| 5 | 17 | Lewis Kerrod | 00 | Co Leicester | 25.98 |
| 6 | 15 | Benjamin Martin | 00 | Pioneer 79 | 26.02 |
| 7 | 13 | Luke Hollingsworth | 99 | Amersham | 26.09 |
| 8 | 11 | Adam Metcalf | 01 | Ellesmere Co | 26.13 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 1 | 20 | Thomas Beeley | 99 | Aberdeen Per | 25.61 |
| 2 | 22 | Lewis Burras | 00 | Southport | 25.43 |
| 3 | 24 | James Brinkley | 93 | Bromley | 25.31 |
| 4 | 26 | Ben Roberts | 97 | Wolv'hampton | 25.28 |
| 5 | 25 | Iestyn Cole | 99 | Plymouth Lea | 25.29 |
| 6 | 23 | Rory Butcher | 95 | Loughboro Un | 25.32 |
| 7 | 21 | Sam Dailley | 01 | Plymouth Lea | 25.51 |
| 8 | 19 | Rory Huggins | 99 | Havant & Wat | 25.79 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 1 | 30 | Robert Bryce | 94 | Aberdeen Dol | 25.15 |
| 2 | 36 | Calum Bain | 96 | UniOfStirl | 24.95 |
| 3 | 42 | Jacob Peters | 00 | Poole | 24.80 |
| 4 | 48 | Adam Taylor | 96 | Co Sund'land | 24.08 |
| 5 | 45 | Cameron Brooks-Clarke | 99 | Co Sheffield | 24.70 |
| 6 | 39 | Conor Munn | 95 | Loughboro Un | 24.88 |
| 7 | 33 | Matthew Domville | 97 | Warrington W | 25.11 |
| 8 | 27 | Thomas Fannon | 98 | Plymouth Lea | 25.20 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 1 | 31 | Kieran McGuckin | 90 | Edinburgh Un | 25.12 |
| 2 | 37 | Alasdair Wright | 97 | Loughboro Un | 24.92 |
| 3 | 43 | Robert Fannon | 95 | Plymouth Lea | 24.77 |
| 4 | 49 | Adam Barrett | 92 | Loughboro Un | 23.74 |
| 5 | 46 | Thomas Sinclair | 98 | Bath Univ | 24.65 |
| 6 | 40 | Alexander Bowen | 95 | Loughboro Un | 24.82 |
| 7 | 34 | Lewis Fraser | 00 | Swansea Aq | 25.04 |
| 8 | 28 | Scott McLay | 99 | Perth City | 25.18 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 1 | 32 | Leon Berchie | 97 | Hillingdon | 25.12 |
| 2 | 38 | Dominic Wooldridge | 95 | Exeter City | 24.89 |
| 3 | 44 | Greg Watson | 95 | Edinburgh Un | 24.74 |
| 4 | 50 | Benjamin Proud | 94 | Plymouth Lea | 23.34 |
| 5 | 47 | Sean Campsie | 94 | Co Glasgow | 24.31 |
| 6 | 41 | Brian O'Sullivan | 95 | Loughboro Un | 24.82 |
| 7 | 35 | Max McCusker | 99 | Millfield | 25.03 |
| 8 | 29 | James McFadzen | 99 | Wycombe Dist | 25.17 |