EVENT 205 Mens Open 200m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 2 | Jack PALLANT | 15 | Lstoft & OB | 2:23.29 |
| 2 | 4 | Jacob ISLE | 18 | West Norfolk | 2:22.44 |
| 3 | 6 | Christopher WILLIAMSON | 14 | Co Cambridge | 2:22.06 |
| 4 | 8 | Teal'K SMITH | 16 | Beccles Town | 2:21.17 |
| 5 | 7 | William MARCH | 17 | Linslade | 2:21.92 |
| 6 | 5 | Morgan FOSTER | 16 | Braintree | 2:22.10 |
| 7 | 3 | Connor HOUSTON | 15 | Deben | 2:23.10 |
| 8 | 1 | Alfie FRANCIS | 14 | Colchester | 2:23.70 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 12 | George WHITEMAN | 15 | Co Peterboro | 2:19.60 |
| 2 | 18 | Angus HARROW | 17 | Harpenden | 2:14.80 |
| 3 | 24 | Elliott DAY | 17 | teamipswich | 2:08.60 |
| 4 | 30 | Herbie KINDER | 17 | Co Peterboro | 2:05.40 |
| 5 | 27 | Manfred BATTLE | 17 | Co Cambridge | 2:06.62 |
| 6 | 21 | Collins SALIBOKO | 17 | St Felix Sch | 2:09.94 |
| 7 | 15 | Henry PEARCE | 17 | Co Peterboro | 2:17.05 |
| 8 | 9 | Samuel DAY | 16 | Beccles Town | 2:20.20 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 13 | Euan HIGGS | 15 | Chelmsford | 2:19.16 |
| 2 | 19 | Lucas DYSON-DIAZ | 19 | Hatfield | 2:12.98 |
| 3 | 25 | Devesh KAPOOR | 16 | Hemel Hemp | 2:08.56 |
| 4 | 31 | Michael KLIMASZEWSKI | 15 | Hatfield | 2:03.80 |
| 5 | 28 | Hugo BELLAMY | 21 | Co Cambridge | 2:05.70 |
| 6 | 22 | Connor WALKER | 15 | Co Peterboro | 2:08.70 |
| 7 | 16 | Matthew BROWN | 14 | Stowmarket | 2:16.90 |
| 8 | 10 | Jimmy TAYLOR | 15 | Thurrock | 2:20.03 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 14 | Peter SOCZEWKA | 14 | Hatfield | 2:18.00 |
| 2 | 20 | Charles WHYTE | 18 | West Suffolk | 2:10.45 |
| 3 | 26 | Nathan WOODROW | 16 | Co Norwich | 2:07.00 |
| 4 | 32 | James WOODWARD | 19 | Hatfield | 1:59.10 |
| 5 | 29 | Matthew WRIGHT | 21 | Team Luton | 2:05.43 |
| 6 | 23 | Joshua BRIDGELAND | 16 | Hatfield | 2:08.70 |
| 7 | 17 | J THURSTON-WOOLNOUGH | 16 | Beccles Town | 2:15.14 |
| 8 | 11 | Mohamed ZEMZAMI | 14 | Bishop Stort | 2:19.84 |