EVENT 403 Open/Male 200m Breaststroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 1 | William COOKE | 11 | South Lincs Competitive SC | 4:30.21 |
| 3 | 3 | Callum LOYNES | 11 | City of Linc Pentaqua SC | 4:09.08 |
| 4 | 2 | Harry BEASTALL | 12 | City of Linc Pentaqua SC | 4:14.44 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 5 | Toby BROWN | 11 | Deepings SC | 4:00.06 |
| 3 | 7 | William NEWMAN-CARTER | 10 | Bassetlaw Swim Squad | 3:47.91 |
| 4 | 6 | Emilijus BINKIS | 12 | South Lincs Competitive SC | 3:50.07 |
| 5 | 4 | Oscar DURHAM | 10 | Bassetlaw Swim Squad | 4:08.43 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 9 | Michael SCOTT | 14 | South Lincs Competitive SC | 3:45.78 |
| 2 | 11 | Noeh SMITH | 10 | Bassetlaw Swim Squad | 3:30.38 |
| 3 | 13 | Noah DEWSNAP | 12 | Bassetlaw Swim Squad | 3:18.70 |
| 4 | 12 | Reuben OWEN | 13 | South Lincs Competitive SC | 3:21.93 |
| 5 | 10 | Oliver WILKINSON | 11 | Lincoln Vulcans SC | 3:44.50 |
| 6 | 8 | Bertie ROSE | 10 | Lincoln Vulcans SC | 3:47.12 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 15 | Isaac GREENSLADE | 14 | Lincoln Vulcans SC | 3:13.13 |
| 2 | 17 | Cole COOPER | 11 | City of Linc Pentaqua SC | 3:11.18 |
| 3 | 19 | James THOMAS | 13 | Gainsborough Dolphins SC | 3:03.55 |
| 4 | 18 | Boyen CHESTNUTT | 17 | Bircotes SC | 3:04.38 |
| 5 | 16 | Anas LACHHEB | 14 | South Lincs Competitive SC | 3:11.79 |
| 6 | 14 | Noah SKINNER | 13 | Deepings SC | 3:13.24 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 21 | William VERE | 15 | South Lincs Competitive SC | 2:51.82 |
| 2 | 23 | Archie FRENCH | 14 | Lincoln Vulcans SC | 2:48.54 |
| 3 | 25 | Aidan FITZGIBBON | 16 | City of Linc Pentaqua SC | 2:44.05 |
| 4 | 24 | Morgan FARRAR | 14 | City of Linc Pentaqua SC | 2:47.85 |
| 5 | 22 | Thomas COLLINS | 13 | Bassetlaw Swim Squad | 2:49.02 |
| 6 | 20 | Sebastian WILKINSON | 18 | Bircotes SC | 2:53.46 |