EVENT 303 Mens Open 200m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 3 | 1 | Todd Last | 15 | Deben | 2:33.32 |
| 4 | 3 | Sean Hogan | 16 | Team Luton | 2:25.95 |
| 5 | 2 | Christopher Murphy | 16 | Flitwick | 2:31.12 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 5 | Alex Mason | 16 | Team Luton | 2:27.82 |
| 2 | 7 | Aidan Robinson | 16 | Basildon Ph | 2:23.53 |
| 3 | 9 | Joshua Graves | 15 | Co Peterboro | 2:17.56 |
| 4 | 11 | Matthew Winnell | 20 | Runnymede | 2:17.63 |
| 5 | 10 | Ryan Clay | 17 | teamipswich | 2:24.38 |
| 6 | 8 | Kieran Whight | 16 | Deben | 2:21.91 |
| 7 | 6 | Alexander Proffitt | 15 | West Suffolk | 2:23.53 |
| 8 | 4 | Daniel Mills | 15 | Co Cambridge | 2:27.33 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 13 | Tommy Sheldrick | 24 | Berkhamtead | 2:18.06 |
| 2 | 15 | Sonny Ford | 17 | Basildon Ph | 2:10.60 |
| 3 | 17 | Jake Tyson | 15 | teamipswich | 2:14.49 |
| 4 | 19 | Jack Hollis | 19 | teamipswich | 2:15.38 |
| 5 | 18 | Barton Townley | 16 | Bo Southend | 2:15.37 |
| 6 | 16 | Daniel Brown | 15 | Co Peterboro | 2:10.97 |
| 7 | 14 | Liam Doonan | 17 | Co Cambridge | 2:18.72 |
| 8 | 12 | Bradley Slavinec | 16 | Hatfield | 2:15.15 |