EVENT 601 Mens Open 50m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 2 | 1 | Jay Cushen | 16 | Winsford | 26.42 |
| 3 | 3 | Maxwell Cooper | 16 | Mt Kelly | 26.38 |
| 4 | 5 | Greg Fairbairn | 17 | Bellshill | 26.37 |
| 5 | 4 | Ellis Morgan | 16 | Wycombe Dist | 26.38 |
| 6 | 2 | Calvin Fry | 15 | Millfield | 26.39 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 7 | Zachary Patel | 18 | Berkhamsted | 26.34 |
| 2 | 9 | Samuel Perks | 17 | Plymouth Lea | 26.25 |
| 3 | 11 | Luke Shaw | 17 | Sutton Cheam | 26.24 |
| 4 | 13 | Sam Townsend | 15 | C Beds SS | 26.21 |
| 5 | 12 | Joel Thompson | 18 | Ellesmere Co | 26.22 |
| 6 | 10 | Adrian Ting | 17 | Maidenhead | 26.25 |
| 7 | 8 | Fraser Agnew | 18 | Aberdeen Per | 26.27 |
| 8 | 6 | Peter Allen | 18 | Io Man | 26.37 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 15 | Oscar Smillie | 17 | Sth Ayrshire | 26.16 |
| 2 | 17 | Aaron Fox | 18 | Bebington | 26.05 |
| 3 | 19 | Ryan Ferguson | 18 | F.I.R.S.T. | 26.03 |
| 4 | 21 | Reid Jones | 17 | Plymouth Lea | 25.97 |
| 5 | 20 | Shakil Giordani | 17 | Haringey | 26.02 |
| 6 | 18 | Will Morris | 17 | Tynemouth | 26.04 |
| 7 | 16 | Cole Hewitt | 17 | Co Sheffield | 26.07 |
| 8 | 14 | Keir Edgar | 18 | F.I.R.S.T. | 26.20 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 23 | Craig Greenock | 18 | Co Glasgow | 25.90 |
| 2 | 25 | William Graham | 18 | Melton M'bry | 25.75 |
| 3 | 27 | Bruno Kempster | 20 | Bath Univ | 25.52 |
| 4 | 29 | Alec White | 18 | Exeter City | 25.39 |
| 5 | 28 | Ewan Smith | 19 | UniOfStirl | 25.40 |
| 6 | 26 | Thomas Carswell | 19 | Tadcaster | 25.56 |
| 7 | 24 | Huw Williams | 17 | Millfield | 25.86 |
| 8 | 22 | Adam Metcalf | 18 | Ellesmere Co | 25.95 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 33 | Ned Sharp | 16 | Skipton | 25.32 |
| 2 | 39 | Sam Dailley | 18 | Mt Kelly | 25.04 |
| 3 | 45 | Alexander Bowen | 24 | Loughboro Un | 24.61 |
| 4 | 51 | Sam Horrocks | 25 | Co Manch Aq | 24.04 |
| 5 | 48 | Lewis Fraser | 19 | Swansea Uni | 24.33 |
| 6 | 42 | Robert Bryce | 25 | Aberdeen Dol | 24.80 |
| 7 | 36 | Joel Watterson | 20 | Io Man | 25.21 |
| 8 | 30 | Euan Macmurchie | 19 | Io Man | 25.38 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 34 | Thomas Beeley | 20 | Plymouth Lea | 25.28 |
| 2 | 40 | Ben Hooper | 19 | Hillingdon | 24.99 |
| 3 | 46 | Calum Bain | 23 | UniOfStirl | 24.40 |
| 4 | 52 | Jacob Peters | 19 | Poole | 23.95 |
| 5 | 49 | Scott McLay | 20 | UniOfStirl | 24.30 |
| 6 | 43 | Mats Crisp | 21 | Warwick Uni | 24.78 |
| 7 | 37 | Rory Huggins | 20 | SurreyUni SC | 25.15 |
| 8 | 31 | James Watson | 19 | Crewe Flyers | 25.33 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 35 | Archie Goodburn | 18 | Warrender Ba | 25.24 |
| 2 | 41 | Matthew Richards | 17 | Royal Wolv | 24.93 |
| 3 | 47 | Henry Bland | 25 | Co Cardiff | 24.34 |
| 4 | 53 | Benjamin Proud | 25 | Plymouth Lea | 22.78 |
| 5 | 50 | Cameron Brooks-Clarke | 20 | Co Sheffield | 24.26 |
| 6 | 44 | Christopher Finch | 22 | SurreyUni SC | 24.77 |
| 7 | 38 | Harry Stacey | 19 | Shiverers | 25.12 |
| 8 | 32 | Alex Mason | 18 | Mt Kelly | 25.33 |