EVENT 102 Boys Open 50m Backstroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 2 | Roman ZAUNER | 12 | York City | 1:00.00 |
| 1 | 4 | Zach BARLOW | 9 | Co Leeds | 59.47 |
| 2 | 6 | Daniel PICKUP | 12 | York City | 57.70 |
| 3 | 8 | Patrick O'HARA | 9 | Co Leeds | 56.60 |
| 4 | 10 | Matei STOICESCU | 9 | Co Leeds | 56.43 |
| 5 | 9 | Reece WEBBER | 10 | Co Leeds | 56.60 |
| 6 | 7 | Demilade AYEMOWA | 9 | Co Leeds | 56.70 |
| 7 | 5 | Rory KING | 9 | Co Leeds | 58.34 |
| 8 | 3 | Joshua JAMESON | 9 | Co Leeds | 59.70 |
| 9 | 1 | James HARGREAVES | 10 | York City | 1:02.00 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 12 | Oliver HASWELL | 9 | Co Leeds | 56.00 |
| 1 | 14 | James ANDREASEN | 9 | Co Leeds | 54.30 |
| 2 | 16 | Oliver BOWDEN | 10 | Co Leeds | 53.11 |
| 3 | 18 | Jackson CLARKE | 9 | Co Leeds | 52.88 |
| 4 | 20 | Harry SAMMS | 13 | York City | 50.86 |
| 5 | 19 | Arthur KING | 9 | York City | 51.00 |
| 6 | 17 | Tyler COSTELLO | 15 | York City | 53.00 |
| 7 | 15 | David AKEROYD | 10 | Co Leeds | 54.00 |
| 8 | 13 | Benjamin MORRIS | 10 | Co Leeds | 54.97 |
| 9 | 11 | Joseph WILLIAMS | 13 | York City | 56.00 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 22 | Lucas ALLITT | 9 | York City | 50.40 |
| 1 | 24 | Jacob FAWCETT | 10 | Co Leeds | 50.10 |
| 2 | 26 | Ethan GARSIDE | 10 | Co Wakefield | 49.60 |
| 3 | 28 | Yuvraj UBHI | 9 | Co Leeds | 49.00 |
| 4 | 30 | Oliver MOONEY | 9 | Co Leeds | 48.80 |
| 5 | 29 | James YOUNG | 10 | York City | 49.00 |
| 6 | 27 | Tom HEY | 10 | Co Leeds | 49.18 |
| 7 | 25 | Will BRIGGS | 12 | York City | 50.00 |
| 8 | 23 | Zach PIERCY | 9 | Co Leeds | 50.22 |
| 9 | 21 | Finley STEVENSON | 11 | York City | 50.70 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 32 | Oliver BROOKE | 10 | Co Leeds | 48.50 |
| 1 | 34 | Finnley STEVENS | 9 | Co Leeds | 48.33 |
| 2 | 36 | Max VARLEY | 12 | York City | 48.10 |
| 3 | 38 | Arthur OWENS | 10 | Co Leeds | 47.50 |
| 4 | 40 | Oliver POW | 9 | Co Wakefield | 47.20 |
| 5 | 39 | Archie BROWN | 10 | Co Leeds | 47.39 |
| 6 | 37 | Amos PEARSE DE WOLF | 10 | Co Leeds | 48.05 |
| 7 | 35 | Alexander THACKER | 9 | Co Leeds | 48.20 |
| 8 | 33 | George SAMMS | 11 | York City | 48.35 |
| 9 | 31 | Cameron ELLIS | 11 | Co Wakefield | 48.57 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 42 | Hugo SHEPHERD | 10 | Thirsk WH | 47.00 |
| 1 | 44 | William WILSON | 9 | Co Leeds | 46.70 |
| 2 | 46 | Lucas PIERCY | 11 | Co Leeds | 46.10 |
| 3 | 48 | Abdullah MOKHLISSE | 10 | Co Leeds | 45.70 |
| 4 | 50 | Ethan BARLOW | 11 | Thirsk WH | 45.56 |
| 5 | 49 | Albert PINDER | 10 | Co Leeds | 45.57 |
| 6 | 47 | George WOODS | 10 | Co Leeds | 46.10 |
| 7 | 45 | Matthew MENZER | 11 | Co Wakefield | 46.20 |
| 8 | 43 | Charlie HORNE | 10 | Co Leeds | 46.80 |
| 9 | 41 | Oliver PULLAN | 10 | Co Leeds | 47.06 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 52 | Thomas WOOFFINDIN | 10 | Co Wakefield | 45.50 |
| 1 | 54 | Samuel HILL | 9 | Co Leeds | 44.90 |
| 2 | 56 | Aarush SHINDE | 11 | Co Leeds | 44.14 |
| 3 | 58 | Ashley TURNER | 11 | York City | 43.90 |
| 4 | 60 | Oliver MAYGER | 11 | Thirsk WH | 43.70 |
| 5 | 59 | Alfie YOUNG | 10 | Co Leeds | 43.80 |
| 6 | 57 | Dylan RALPH | 14 | Co Wakefield | 44.00 |
| 7 | 55 | Jacob BOGGON | 11 | Co Leeds | 44.60 |
| 8 | 53 | Christopher BARNETT | 11 | Co Wakefield | 45.50 |
| 9 | 51 | Toby RYDER | 10 | Thirsk WH | 45.50 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 62 | Nathan CARRINGTON | 12 | York City | 43.40 |
| 1 | 64 | Daniel GREEN | 12 | Kippax | 43.20 |
| 2 | 66 | Liam MATSON | 12 | Kippax | 43.00 |
| 3 | 68 | Edward COLLINS | 10 | Co Leeds | 42.65 |
| 4 | 70 | Henry SMITH | 13 | Co Wakefield | 41.80 |
| 5 | 69 | Felipe BOADA | 12 | AJ Newcastle | 42.60 |
| 6 | 67 | Isaac FOY | 10 | Co Leeds | 42.81 |
| 7 | 65 | Joseph HALL | 10 | Co Leeds | 43.10 |
| 8 | 63 | Jacob O'DONNELL | 9 | Co Leeds | 43.30 |
| 9 | 61 | Christie OLANREWAJU | 11 | AJ Newcastle | 43.50 |
| Heat Number - 8 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 72 | William DALE-WOOD | 9 | Thirsk WH | 41.70 |
| 1 | 74 | Archie ALLEN | 12 | AJ Newcastle | 41.20 |
| 2 | 76 | Ethan COWELL | 10 | Co Leeds | 41.10 |
| 3 | 78 | Hari MONTGOMERY | 12 | Co Leeds | 40.84 |
| 4 | 80 | George CARRY | 11 | Co Leeds | 40.72 |
| 5 | 79 | Zach CROWTHER | 11 | Co Leeds | 40.80 |
| 6 | 77 | Benjamin DALE-WOOD | 11 | Thirsk WH | 40.87 |
| 7 | 75 | Maxwell FORD | 10 | Co Leeds | 41.10 |
| 8 | 73 | Owen DEWEY-NAGER | 10 | Co Wakefield | 41.70 |
| 9 | 71 | Asher MAXFIELD | 10 | Co Leeds | 41.71 |
| Heat Number - 9 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 82 | Robert CHRISTIAN | 11 | AJ Newcastle | 39.90 |
| 1 | 84 | Keiran HEPWORTH | 12 | Co Leeds | 39.62 |
| 2 | 86 | Lucas EDMONDS | 13 | York City | 39.40 |
| 3 | 88 | Matthew JUST | 11 | Co Leeds | 39.20 |
| 4 | 90 | Oliver GOODISON | 11 | Co Leeds | 38.81 |
| 5 | 89 | Thomas MILNER | 12 | Co Leeds | 38.88 |
| 6 | 87 | Dominic VILA | 11 | Co Leeds | 39.40 |
| 7 | 85 | Callum RAVEN | 10 | Co Leeds | 39.60 |
| 8 | 83 | James ADKIN | 12 | Co Leeds | 39.86 |
| 9 | 81 | Matthew JAMES | 11 | Co Leeds | 40.60 |
| Heat Number - 10 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 92 | Max WALKER | 11 | Thirsk WH | 38.70 |
| 1 | 94 | Matthew ROBERTS | 12 | Co Leeds | 38.60 |
| 2 | 96 | Jamie BLEANCH | 12 | York City | 38.01 |
| 3 | 98 | Joshua BROMPTON | 14 | Co Leeds | 37.68 |
| 4 | 100 | Ashton DEES | 13 | Co Leeds | 37.41 |
| 5 | 99 | Oliver BROMPTON | 11 | Co Leeds | 37.53 |
| 6 | 97 | Oliver STEELE | 11 | Co Leeds | 38.00 |
| 7 | 95 | Dominic BEEN | 14 | York City | 38.25 |
| 8 | 93 | Luke DYER | 11 | Co Leeds | 38.61 |
| 9 | 91 | Zac JONES | 10 | Co Leeds | 38.73 |
| Heat Number - 11 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 102 | Daniel STEVENS | 14 | Bev Barracud | 37.00 |
| 1 | 104 | Charlie HINSON | 11 | Co Leeds | 36.91 |
| 2 | 106 | Charlie SHEPHERD | 13 | Thirsk WH | 36.83 |
| 3 | 108 | Oliver WHITTLESTON | 12 | Co Leeds | 36.09 |
| 4 | 110 | William BACON | 13 | Co Leeds | 36.01 |
| 5 | 109 | Theodore ROSENBERG | 12 | Co Leeds | 36.02 |
| 6 | 107 | Harry ROOK | 12 | Bev Barracud | 36.52 |
| 7 | 105 | Daniel CURRAN | 13 | Bev Barracud | 36.90 |
| 8 | 103 | Samuel PICKUP | 15 | York City | 36.95 |
| 9 | 101 | Harry SENIOR | 12 | Co Leeds | 37.28 |
| Heat Number - 12 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 112 | William SUTCLIFFE | 14 | Bev Barracud | 35.60 |
| 1 | 114 | Jack SENIOR | 15 | Co Leeds | 34.42 |
| 2 | 116 | Reece GRAHAM | 18 | AJ Newcastle | 34.00 |
| 3 | 118 | Alex HOLMES | 15 | Co Wakefield | 33.00 |
| 4 | 120 | Joseph BURNELL | 16 | Co Leeds | 30.97 |
| 5 | 119 | Harrison LEE | 15 | Co Wakefield | 33.00 |
| 6 | 117 | Liam DAWSON | 15 | Co Wakefield | 33.53 |
| 7 | 115 | James NAYLOR | 15 | Co Wakefield | 34.20 |
| 8 | 113 | Kourosh KHODAKHAH | 12 | Co Leeds | 34.97 |
| 9 | 111 | George BROOKS | 12 | Co Leeds | 35.90 |