EVENT 203 Mens Open 50m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 2 | 1 | Luca Barretta | 14 | Croydon Amph | 26.78 |
| 3 | 3 | Austin-Slade Jeffery | 14 | Havant & Wat | 26.76 |
| 4 | 5 | Charlie Varker | 14 | St Austell | 26.70 |
| 5 | 4 | Danny Skinner | 14 | BelperMarlin | 26.76 |
| 6 | 2 | Nathan Woodrow | 14 | UEA Norwich | 26.77 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 7 | Luca Riezzo | 14 | Exeter City | 26.68 |
| 1 | 9 | Ryan McCoy | 14 | Hackney | 26.63 |
| 2 | 11 | Dominic Bools | 14 | Nova Cent'n | 26.53 |
| 3 | 13 | Lewis Binning | 14 | Romford Town | 26.52 |
| 4 | 15 | Dillon Chana | 14 | Hillingdon | 26.45 |
| 5 | 14 | Jack Fairhurst | 14 | Io Man | 26.49 |
| 6 | 12 | Geo Ratouly | 14 | Wantage | 26.53 |
| 7 | 10 | Brinley Dorrell | 14 | Woking | 26.60 |
| 8 | 8 | Callum Wimble | 14 | Guildford Ct | 26.66 |
| 9 | 6 | Joseph Burns | 14 | Prescot | 26.68 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 17 | Thomas English | 13 | Chester Le S | 26.43 |
| 1 | 19 | William Barber | 15 | Co Lincoln P | 26.14 |
| 2 | 21 | Manfred Battle | 15 | Stowmarket | 26.13 |
| 3 | 23 | Matthew Plumb | 15 | Dinnaton | 26.09 |
| 4 | 25 | Renat Samur | 15 | Haringey | 26.06 |
| 5 | 24 | James Cooper | 15 | Basildon Ph | 26.07 |
| 6 | 22 | Willem Koster | 15 | Dulwich Dolp | 26.12 |
| 7 | 20 | Thomas Silk | 15 | Co Liverpool | 26.13 |
| 8 | 18 | Alfie Marrs | 15 | Co Manch Aq | 26.14 |
| 9 | 16 | Bradley Evans | 14 | Derventio | 26.45 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 27 | Cameron Lewis | 15 | Gloucester | 26.04 |
| 1 | 29 | Charles Deacon | 15 | Ashington | 26.00 |
| 2 | 31 | Ellis Stanhope | 15 | Sevenoaks | 25.91 |
| 3 | 33 | Nikolas Lupi | 15 | Chelsea&West | 25.84 |
| 4 | 35 | Alex Thompson | 15 | Co Liverpool | 25.82 |
| 5 | 34 | Shakil Giordani | 15 | Haringey | 25.83 |
| 6 | 32 | George Robert-Shaw | 15 | Dorking | 25.85 |
| 7 | 30 | Max Johnson | 15 | Teddington | 25.92 |
| 8 | 28 | Xeimon Parker-Cox | 15 | Leic Sharks | 26.01 |
| 9 | 26 | Thomas Watkin | 15 | Royal Wolv | 26.05 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 37 | Spencer Gall | 16 | Epsom Dist | 25.57 |
| 1 | 39 | Ethan Rayment | 16 | Plymouth Lea | 25.56 |
| 2 | 41 | William Chapman | 16 | Barnet Copt | 25.51 |
| 3 | 43 | Harvey Williamson | 16 | Donc Dartes | 25.48 |
| 4 | 45 | James Chennells | 16 | Berkhamsted | 25.42 |
| 5 | 44 | William Hogg | 16 | Eckington | 25.43 |
| 6 | 42 | Alex Mason | 16 | Chester Le S | 25.49 |
| 7 | 40 | Benjamin Moore | 16 | Camden Swiss | 25.56 |
| 8 | 38 | Nathan Wallace | 16 | Co Hereford | 25.56 |
| 9 | 36 | Marcus Cook | 16 | Crewe Flyers | 25.59 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 49 | Daniel Chada | 16 | Bishop Stort | 25.29 |
| 1 | 55 | Harvey Jolly | 17 | Basildon Ph | 25.02 |
| 2 | 61 | Connor Joyce | 17 | Cockermouth | 24.61 |
| 3 | 67 | Jamie Ingram | 19 | Derventio | 24.11 |
| 4 | 73 | Cameron Moffat | 20 | Windsor | 23.96 |
| 5 | 70 | Lewis Clough | 19 | Co Salford | 24.03 |
| 6 | 64 | Oskar Jones | 17 | Teddington | 24.38 |
| 7 | 58 | Jack To | 17 | Co Sheffield | 24.84 |
| 8 | 52 | Harrison Fern | 17 | Chesterfield | 25.06 |
| 9 | 46 | Richard Kozhabayev | 16 | Hackney | 25.42 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 50 | Christopher Hooper | 16 | Ellesmere Co | 25.28 |
| 1 | 56 | Matthew Pomford | 17 | Co Liverpool | 24.86 |
| 2 | 62 | Daniel Savage | 17 | Northampton | 24.53 |
| 3 | 68 | Glen Melson | 23 | Elmbridge | 24.06 |
| 4 | 74 | Jean-Jaques Choron | 20 | Hastings | 23.94 |
| 5 | 71 | Alasdair Wright | 20 | Loughboro Un | 24.02 |
| 6 | 65 | Sam Phippen | 17 | Wycombe Dist | 24.32 |
| 7 | 59 | Balazs Toth | 17 | Rushmoor Ryl | 24.84 |
| 8 | 53 | Callum Richards | 17 | AST Burnham | 25.04 |
| 9 | 47 | Matthew Burton | 16 | Maxwell | 25.41 |
| Heat Number - 8 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 51 | Fynn Lewis-Gale | 16 | Co Hereford | 25.27 |
| 1 | 57 | Samuel Cottee | 17 | teamipswich | 24.85 |
| 2 | 63 | Samuel Chell | 17 | Billingham | 24.41 |
| 3 | 69 | Karl Morgan | 22 | Derventio | 24.05 |
| 4 | 75 | James Brinkley | 24 | Bromley | 23.69 |
| 5 | 72 | Charlie Pullan | 19 | Bath Univ | 23.96 |
| 6 | 66 | Thomas Carswell | 17 | Tadcaster | 24.31 |
| 7 | 60 | Oscar Jameson | 17 | Ealing | 24.61 |
| 8 | 54 | Henry Hickson | 17 | Loftus Dol | 25.04 |
| 9 | 48 | Eoin O'Connor | 16 | Co Liverpool | 25.35 |