EVENT 303 Boys Open 200m Breaststroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Michal Wojcik | 12 | Northampton | 4:20.43 |
| 2 | 2 | Harry Wilson | 11 | Northampton | 4:19.31 |
| 3 | 3 | Jasper Woodhead | 11 | Northampton | 4:10.56 |
| 4 | 4 | Alex Bartlam | 11 | Co Leicester | 4:06.65 |
| 5 | 5 | Ryan Hejraty | 11 | Co Leicester | 4:06.16 |
| 6 | 6 | Charlie Roberts | 13 | Northampton | 3:57.60 |
| 7 | 7 | James Yates | 12 | Co Leicester | 3:47.23 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 8 | Max Noon | 13 | Northampton | 3:45.89 |
| 2 | 9 | Oliver Ashman | 11 | Co Leicester | 3:41.99 |
| 3 | 10 | Edward Oscroft | 12 | Northampton | 3:35.82 |
| 4 | 11 | Joel Yates | 14 | Leicester Ne | 3:32.14 |
| 5 | 12 | Noah Tyers | 13 | Co Leicester | 3:25.03 |
| 6 | 13 | Emerson-Blu Gupwell | 11 | Co Leicester | 3:22.50 |
| 7 | 14 | Ethan Simmonds | 12 | Co Leicester | 3:22.31 |
| 8 | 15 | Harvey Brind | 13 | Co Leicester | 3:20.76 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 17 | Finlay Gibson | 13 | Co Leicester | 2:58.03 |
| 2 | 19 | Lewis Cotterell | 15 | Co Leicester | 2:45.50 |
| 3 | 21 | Oliver Kang | 15 | Co Leicester | 2:40.77 |
| 4 | 23 | Alexander Casey | 17 | Co Leicester | 2:28.00 |
| 5 | 22 | Oliver Oxley | 15 | Co Leicester | 2:38.56 |
| 6 | 20 | Paul Page | 14 | Co Leicester | 2:42.19 |
| 7 | 18 | Patrick Mahney | 18 | Northampton | 2:47.44 |
| 8 | 16 | Isaac Yates | 15 | Leicester Ne | 3:17.98 |