EVENT 106 Mens Open 50m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 2 | 2 | Nathaniel Rodrigues | 15 | Sevenoaks | 27.59 |
| 3 | 4 | Ross Philp | 15 | Staines | 27.53 |
| 4 | 6 | Nathan Woodrow | 14 | Co Norwich | 27.48 |
| 5 | 5 | Collins Saliboko | 15 | St Felix Sch | 27.52 |
| 6 | 3 | Nathaniel Moorey | 14 | South Dorset | 27.54 |
| 7 | 1 | Joshua Holland | 14 | Hertford | 27.59 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 8 | Lewis Binning | 14 | Romford Town | 27.48 |
| 1 | 10 | Maximilian Weeks | 15 | South Dorset | 27.44 |
| 2 | 12 | Yahia Makky | 15 | Kingston Roy | 27.39 |
| 3 | 14 | Jamie Hanss | 14 | Co Milton K | 27.37 |
| 4 | 16 | Thomas English | 13 | Chester Le S | 27.31 |
| 5 | 15 | Douglas Kelly | 14 | Milngavie &B | 27.33 |
| 6 | 13 | Alex Bryant | 15 | Bourmth Coll | 27.37 |
| 7 | 11 | Salvador Gordo | 14 | Plymouth Lea | 27.42 |
| 8 | 9 | Louis Edwards-Pratt | 15 | Plymouth Lea | 27.46 |
| 9 | 7 | William Barber | 15 | Lincoln Vulc | 27.48 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 18 | Sean Tsai | 14 | Millfield | 27.28 |
| 1 | 20 | David Gillespie | 14 | Corby | 27.24 |
| 2 | 22 | Calvin Fry | 13 | Millfield | 27.07 |
| 3 | 24 | William Gearey | 14 | Worcester | 27.01 |
| 4 | 26 | Shakil Giordani | 15 | Haringey | 26.97 |
| 5 | 25 | George Robert-Shaw | 15 | Dorking | 27.00 |
| 6 | 23 | Robert Brittle | 15 | Truro City | 27.06 |
| 7 | 21 | Elliott Day | 15 | teamipswich | 27.23 |
| 8 | 19 | Myles Robinson-Young | 15 | Co Peterboro | 27.24 |
| 9 | 17 | Cole Hewitt | 15 | Nova Cent'n | 27.29 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 28 | Kyo Tanner | 15 | Ellesmere Co | 26.88 |
| 1 | 30 | Jack Bowyer | 15 | West Suffolk | 26.73 |
| 2 | 32 | Huw Williams | 15 | Millfield | 26.48 |
| 3 | 34 | Jonathon Adam | 15 | Co Cambridge | 26.38 |
| 4 | 36 | Will Morris | 15 | Tynemouth | 25.99 |
| 5 | 35 | Ned Sharp | 14 | Ellesmere Co | 26.22 |
| 6 | 33 | Reid Jones | 15 | Plymouth Lea | 26.47 |
| 7 | 31 | Edward Mildred | 14 | Northampton | 26.58 |
| 8 | 29 | Joseph Thompson | 15 | Plymouth Lea | 26.81 |
| 9 | 27 | Samuel Perks | 15 | Basildon Ph | 26.94 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 40 | Robert Cowley | 20 | Co Manch Aq | 25.62 |
| 1 | 46 | Jacob Jackson | 19 | Ellesmere Co | 25.41 |
| 2 | 52 | Matthew Henry | 27 | Dartmoor DA | 25.15 |
| 3 | 58 | Edoardo Valsecchi | 20 | Plymouth Lea | 24.75 |
| 4 | 64 | Alasdair Wright | 20 | Newcastle | 24.34 |
| 5 | 61 | Federico Burdisso | 16 | Mt Kelly | 24.52 |
| 6 | 55 | Matthew Domville | 20 | Warrington W | 24.91 |
| 7 | 49 | Alistair Crawford | 33 | East Leeds | 25.36 |
| 8 | 43 | Joel Watterson | 18 | Io Man | 25.49 |
| 9 | 37 | Matthew Richards | 15 | Royal Wolv | 25.68 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 41 | Andrew Roy | 19 | Bath Univ | 25.60 |
| 1 | 47 | Josh Bradley | 24 | Halesowen | 25.41 |
| 2 | 53 | Dominic Wooldridge | 22 | Exeter City | 25.14 |
| 3 | 59 | Oliver Maltby | 20 | Co Milton K | 24.59 |
| 4 | 65 | Robert Fannon | 22 | Plymouth Lea | 24.28 |
| 5 | 62 | Jacob Peters | 17 | Poole | 24.46 |
| 6 | 56 | Lewis Burras | 17 | Southport | 24.82 |
| 7 | 50 | Sam Dailley | 16 | Mt Kelly | 25.19 |
| 8 | 44 | Jacob Lea | 19 | Southport | 25.48 |
| 9 | 38 | James Baxter | 19 | Wycombe Dist | 25.66 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 42 | Miles Munro | 21 | Bath Univ | 25.54 |
| 1 | 48 | Kevin Wallbank | 21 | Loughboro Un | 25.39 |
| 2 | 54 | Max McCusker | 18 | Millfield | 24.97 |
| 3 | 60 | Alexander Bowen | 22 | Loughboro Un | 24.56 |
| 4 | 66 | Daniel Savage | 17 | Northampton | 24.21 |
| 5 | 63 | Sam Horrocks | 23 | Co Manch Aq | 24.41 |
| 6 | 57 | Cameron Brooks-Clarke | 18 | Co Sheffield | 24.77 |
| 7 | 51 | William Cole | 18 | Co Bristol | 25.18 |
| 8 | 45 | Jamie Ingram | 19 | Co Manch Aq | 25.47 |
| 9 | 39 | Reece Dunn | 22 | Plymouth Lea | 25.63 |