EVENT 216 Boy Open 50m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 3 | 11 | Bruce DEE | 16 | S6 | Northampton | 42.26 |
| 4 | 2 | Dilanas SATAVICIUS | 12 | | Nuneaton | 34.89 |
| 5 | 1 | Christian O'CONNELL | 13 | | Stockport Mo | 35.00 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 0 | 4 | Frank LAMB | 13 | | South Lincs | 34.30 |
| 1 | 6 | George CARRY | 14 | | Co Leeds | 34.18 |
| 2 | 8 | Quinn-Austin KELLY | 14 | | Co Bradford | 33.60 |
| 3 | 10 | Jacob BOGGON | 14 | | Co Leeds | 32.22 |
| 4 | 15 | Louie ENNIS | 14 | | Chapeltown | 31.90 |
| 5 | 12 | Jamie LAWLER | 16 | | Warrington W | 32.00 |
| 6 | 9 | Kyle WAREHAM | 14 | | Harrogate | 32.40 |
| 7 | 7 | Joe DALY | 14 | | Cleethorpes | 34.10 |
| 8 | 5 | Will SKIGGS | 14 | | Co Bradford | 34.30 |
| 9 | 3 | Las AL-DABAK | 14 | | Stockport Mo | 34.40 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 0 | 13 | Josh PINDER | 15 | | Warrington W | 31.90 |
| 1 | 17 | Noah HARRISON | 17 | | Stockport Mo | 31.70 |
| 2 | 19 | Jake DARK | 14 | | Boldmere | 31.61 |
| 3 | 21 | Tyler ATILMAN | 15 | | Bo Kirklees | 31.20 |
| 4 | 24 | Joseph SWANSTON | 16 | | AJ Newcastle | 31.00 |
| 5 | 22 | Adam HAWKINS | 16 | | Harrogate | 31.10 |
| 6 | 20 | Mathew BRADLEY | 16 | | Cleethorpes | 31.40 |
| 7 | 18 | Dawid NAGLIK | 14 | | Co Bradford | 31.65 |
| 8 | 16 | Edun ROWE | 14 | | Northampton | 31.79 |
| 9 | 14 | Joshua NORRIS | 18 | | Blackpool Aq | 31.90 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 0 | 25 | Benjamin GIBBONS | 15 | | Northampton | 30.97 |
| 1 | 27 | Henry KING | 16 | | Bo Kirklees | 30.75 |
| 2 | 30 | Joseph BURGESS | 15 | | Skipton | 30.70 |
| 3 | 31 | Harry COCKBURN | 14 | | Skipton | 30.50 |
| 4 | 33 | George THOMSON | 17 | | AJ Newcastle | 30.20 |
| 5 | 34 | Alex SADLER | 15 | | South Lincs | 30.20 |
| 6 | 29 | Zak SHERIFF | 14 | | Skipton | 30.70 |
| 7 | 28 | Charlie BUTCHER | 15 | | Boldmere | 30.71 |
| 8 | 26 | Daniel MOORHOUSE | 15 | | Durham City | 30.80 |
| 9 | 23 | George OXBY | 17 | | Stockport Mo | 31.00 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 0 | 35 | Clark HOPKINSON | 16 | | Boldmere | 30.17 |
| 1 | 37 | Nathan DULAY | 16 | | Co Leeds | 30.09 |
| 2 | 39 | Daniel KHODAVERDI | 13 | | Stockport Mo | 30.00 |
| 3 | 41 | Jasper JONES | 15 | | Northampton | 29.65 |
| 4 | 43 | Daniel JONES | 16 | | Wigan BEST | 29.33 |
| 5 | 42 | Luke BRUSSELS | 14 | | Prescot | 29.53 |
| 6 | 40 | Shea WHITELEY | 16 | | Co Manch Aq | 29.73 |
| 7 | 38 | Samuel JACKSON | 14 | | Bo Kirklees | 30.04 |
| 8 | 36 | Elliott BARKER | 15 | | Northampton | 30.14 |
| 9 | 32 | Callum MAWSON | 17 | | Co Bradford | 30.20 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 0 | 44 | Oliver SALIMBENI | 15 | | Stockport Mo | 29.20 |
| 1 | 47 | Cameron RHODES | 17 | | Rotherham Mo | 29.10 |
| 2 | 49 | Andre ONYEKWE | 14 | | Leamington | 29.06 |
| 3 | 51 | Alex KEEBLE | 18 | | Leic Sharks | 29.00 |
| 4 | 53 | Leo TAYLOR | 16 | | Leyland Barr | 28.75 |
| 5 | 52 | Gabriel SHEPHERD | 14 | | Harrogate | 28.90 |
| 6 | 50 | Luke STEVENS | 16 | | Leic Sharks | 29.04 |
| 7 | 46 | Charlie ROUNCE | 15 | | Leamington | 29.10 |
| 8 | 48 | Thomas BRUCE | 16 | | South Lincs | 29.10 |
| 9 | 45 | Albert MALSHER | 19 | | Rushden | 29.20 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 0 | 55 | Jake CHRISTON | 16 | | Co Manch Aq | 28.68 |
| 1 | 60 | Thomas PARRY | 15 | | Boldmere | 28.50 |
| 2 | 58 | Jack HURDMAN | 19 | | Skegness | 28.50 |
| 3 | 61 | Thomas DERBYSHIRE | 16 | | Leic Sharks | 28.46 |
| 4 | 62 | Cohen STEPHENSON | 17 | | Co Leeds | 28.30 |
| 5 | 63 | Cody INGRAM | 16 | | Bo Barnsley | 28.30 |
| 6 | 57 | Thomas SMITH | 16 | | RichmondDale | 28.50 |
| 7 | 59 | Jack JENKINSON | 16 | | Skipton | 28.50 |
| 8 | 56 | Matthew JUST | 14 | | Co Leeds | 28.51 |
| 9 | 54 | Louie NIGHTINGALE | 14 | | Donc Dartes | 28.73 |
| Heat Number - 8 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 0 | 66 | Jacob SOOTHILL | 17 | | Blackpool Aq | 28.20 |
| 1 | 75 | Kalum SMART | 18 | | Bo Barnsley | 27.70 |
| 2 | 79 | Jacob MILLS | 15 | | Leic Sharks | 27.50 |
| 3 | 85 | Owen WHITELEY | 16 | | Co Manch Aq | 27.22 |
| 4 | 91 | Thomas CURRIE | 18 | | Northampton | 26.50 |
| 5 | 88 | Lucas LOWERY | 24 | | AJ Newcastle | 27.10 |
| 6 | 82 | Thomas WATSON | 20 | | AJ Newcastle | 27.40 |
| 7 | 76 | Oscar BLANCHARD | 17 | | Cleethorpes | 27.65 |
| 8 | 70 | Noah WRAGG | 19 | | Bo Barnsley | 27.94 |
| 9 | 64 | Jack TAYLOR | 18 | | Leic Sharks | 28.21 |
| Heat Number - 9 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 0 | 65 | Joshua GOLSBY-TAYLOR | 18 | | Leamington | 28.20 |
| 1 | 74 | Lewis COTTAM | 17 | | Stockport Mo | 27.70 |
| 2 | 80 | Tom ARKWRIGHT | 17 | | Leyland Barr | 27.48 |
| 3 | 86 | Daniel JACKSON | 16 | | Bo Kirklees | 27.21 |
| 4 | 92 | Ashley DONALDSON | 18 | | Altrincham | 26.33 |
| 5 | 90 | Jacob ATKINSON | 18 | | Stockport Mo | 26.98 |
| 6 | 83 | Charlie COLLINS | 16 | | Wigan BEST | 27.38 |
| 7 | 77 | Evagelos XYNARIANOS | 19 | | Stockport Mo | 27.60 |
| 8 | 71 | Carrick THOMPSON | 21 | | Leic Sharks | 27.90 |
| 9 | 68 | Keelan BEHAN | 16 | | Skipton | 28.20 |
| Heat Number - 10 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 0 | 69 | Tom MCCABE | 17 | | Stockport Mo | 28.03 |
| 1 | 73 | Samuel SMITH | 15 | | Skipton | 27.70 |
| 2 | 81 | Noah SOUTHGATE | 18 | | Boldmere | 27.42 |
| 3 | 87 | Blaine UNDERWOOD | 18 | | Bo Barnsley | 27.18 |
| 4 | 93 | Luca DE ZILVA | 19 | | Leic Sharks | 25.66 |
| 5 | 89 | Frankie DOCKING-SMITH | 18 | | Stockport Mo | 26.98 |
| 6 | 84 | Davey UNWIN | 16 | | Stockport Mo | 27.28 |
| 7 | 78 | Luke CLEGG | 17 | | Bo Kirklees | 27.55 |
| 8 | 72 | Adam FRAZER | 16 | | Rushden | 27.85 |
| 9 | 67 | David BARNETT | 20 | | Durham City | 28.20 |