EVENT 103 Open/Male 09 /Over 100m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Ralph NEILSON | 9 | Tynemouth | 1:47.70 |
| 4 | 3 | William BOUGH | 11 | Tynemouth | 1:30.37 |
| 5 | 2 | Jake DUMPHY-BROOK | 11 | Middlesboro | 1:40.37 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 5 | Jude SKILBECK | 11 | Middlesboro | 1:26.20 |
| 2 | 7 | Matthew BLACKMORE | 13 | Middlesboro | 1:22.36 |
| 3 | 9 | Zachary COWENS | 12 | Tynemouth | 1:20.50 |
| 4 | 11 | Ethan PAYLOR | 13 | Middlesboro | 1:19.80 |
| 5 | 10 | Gabriel MORAN | 12 | Co Sund'land | 1:20.30 |
| 6 | 8 | Oliver REES | 13 | Durham City | 1:22.25 |
| 7 | 6 | Joel THOMPSON | 11 | South Tyne | 1:26.11 |
| 8 | 4 | Ralph FAWCETT | 11 | Middlesboro | 1:28.99 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 13 | Oliver PRICE | 12 | Saltburn Mar | 1:17.20 |
| 2 | 15 | Edward GRACE | 13 | Newcastle | 1:13.76 |
| 3 | 17 | thomas horsman | 13 | Borocuda T | 1:13.20 |
| 4 | 19 | Matthias GHEORGHIU | 11 | Tynemouth | 1:11.60 |
| 5 | 18 | Oliver FODEN | 12 | Saltburn Mar | 1:11.80 |
| 6 | 16 | Oscar GIBSON-TUCK | 15 | South Tyne | 1:13.29 |
| 7 | 14 | Austin FORSTER | 12 | Co Sund'land | 1:16.50 |
| 8 | 12 | Samuel BROWN | 14 | Tynemouth | 1:17.79 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 21 | Orin CONNOLLY | 14 | Middlesboro | 1:10.10 |
| 2 | 23 | Jacob REDDING | 15 | Middlesboro | 1:09.23 |
| 3 | 25 | Charlie CRAIG | 14 | Morpeth | 1:08.50 |
| 4 | 27 | William PROUD | 14 | Middlesboro | 1:07.50 |
| 5 | 26 | Max WALLS | 14 | Derwent&Gate | 1:07.90 |
| 6 | 24 | Luke ELDRED | 14 | South Tyne | 1:08.72 |
| 7 | 22 | Alfie DENT | 16 | South Tyne | 1:10.06 |
| 8 | 20 | Aodan ROBSON-BURRELL | 14 | Derwent&Gate | 1:10.50 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 29 | Henry JONES | 13 | South Tyne | 1:07.17 |
| 2 | 31 | Thomas HILL | 15 | Newcastle | 1:04.71 |
| 3 | 33 | Aidan TURNER | 17 | Newcastle | 1:02.96 |
| 4 | 35 | Jacob NEILLIS | 18 | Newcastle | 1:02.60 |
| 5 | 34 | Harry DOUGLASS | 16 | Newcastle | 1:02.60 |
| 6 | 32 | Joe JOHNSON | 15 | Durham City | 1:03.70 |
| 7 | 30 | Ahmet Erdi OZTURK | 40 | Durham City | 1:04.79 |
| 8 | 28 | Theo CADAMY | 15 | Newcastle | 1:07.24 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 37 | Owen BROWN | 17 | Newcastle | 1:02.12 |
| 2 | 39 | Leyton LAVELLE | 16 | Durham City | 1:01.00 |
| 3 | 41 | James HADWIN | 16 | Derwent&Gate | 1:00.30 |
| 4 | 43 | Daniel PAYTON | 17 | Tynemouth | 59.60 |
| 5 | 42 | Quintin CHENG | 16 | Newcastle | 1:00.20 |
| 6 | 40 | Lewis PEGGS | 16 | Middlesboro | 1:00.90 |
| 7 | 38 | Toby CRAIG | 17 | Morpeth | 1:01.50 |
| 8 | 36 | Gabriel MULLOY | 16 | Tynemouth | 1:02.20 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 45 | Matthew SCOTT | 17 | Newcastle | 58.00 |
| 2 | 47 | Christian MATHESON | 17 | Co Sund'land | 57.20 |
| 3 | 49 | Jamie BEACH | 18 | Newcastle | 56.80 |
| 4 | 51 | Robert SHIPLEY | 16 | Middlesboro | 55.00 |
| 5 | 50 | Adam MEIKLE | 17 | Tynemouth | 56.70 |
| 6 | 48 | Finn PROUD | 17 | Newcastle | 56.90 |
| 7 | 46 | Edward HODGSON | 17 | Newcastle | 57.70 |
| 8 | 44 | Karol LEKSANDER | 16 | Co Sund'land | 59.00 |