EVENT 205 Men Open 200m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 2 | Robert Fenner | 14 | Basildon Ph | 2:27.48 |
| 3 | 4 | Orlando Dearing | 14 | Co Peterboro | 2:26.73 |
| 4 | 6 | Reece Barclay | 31 | Epping For't | 2:25.60 |
| 5 | 5 | Harrison Shaw | 15 | Flitwick | 2:26.33 |
| 6 | 3 | Dylan Nutt | 23 | DunmowAtlant | 2:26.83 |
| 7 | 1 | Kian Lee | 14 | Co Peterboro | 2:27.70 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 10 | Corey Hare | 16 | Colchester | 2:24.40 |
| 2 | 16 | Jack Barnard | 17 | Potters Bar | 2:18.19 |
| 3 | 22 | Sandijs Cecins | 15 | Colchester | 2:16.70 |
| 4 | 28 | Harry Jones | 22 | Co Norwich | 2:04.84 |
| 5 | 25 | Daniel McGuinness | 16 | Basildon Ph | 2:11.10 |
| 6 | 19 | Calin Bosianu | 14 | Watford SC | 2:17.40 |
| 7 | 13 | Rufus Bennett | 14 | Co Peterboro | 2:22.10 |
| 8 | 7 | Daniel Kendall | 16 | Co Ely | 2:24.92 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 11 | Jude Gunner | 13 | St Felix Sch | 2:24.00 |
| 2 | 17 | Isaac Farrugia | 15 | Basildon Ph | 2:18.00 |
| 3 | 23 | Jason Ho | 16 | Hatfield | 2:14.07 |
| 4 | 29 | Matthew Wright | 24 | Team Luton | 2:04.50 |
| 5 | 26 | Nikita Charykin | 16 | Thurrock | 2:08.91 |
| 6 | 20 | Joshua Shepherd | 14 | Thurrock | 2:16.93 |
| 7 | 14 | Harry Stagg | 16 | Basildon Ph | 2:21.44 |
| 8 | 8 | Archie Rann | 15 | Ware | 2:24.87 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 12 | James Peacock | 16 | Co Peterboro | 2:23.74 |
| 2 | 18 | Oliver Pike | 15 | Co Norwich | 2:17.80 |
| 3 | 24 | Zak Troman | 15 | teamipswich | 2:13.80 |
| 4 | 30 | James Woodward | 22 | Hatfield | 1:57.75 |
| 5 | 27 | Jake Thomas-Mansfield | 22 | West Suffolk | 2:05.23 |
| 6 | 21 | Matthew Brown | 17 | Stowmarket | 2:16.70 |
| 7 | 15 | Patch Robinson | 15 | teamipswich | 2:18.20 |
| 8 | 9 | Daniel Moyses | 16 | Co Peterboro | 2:24.70 |