EVENT 207 Boys 200m Backstroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 1 | William PENNOCK | 9 | Grantham | |
| 3 | 2 | Oscar CHEN REES | 11 | Grantham | |
| 4 | 3 | Leo BARNETT | 11 | Grantham | |
| 5 | 4 | Barnaby DURANT | 10 | Grantham | |
| 6 | 5 | Thomas KINNEAR | 13 | Grantham | |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 6 | Woody CLARK | 9 | Grantham | |
| 2 | 7 | Alex NEVARD | 11 | Grantham | |
| 3 | 8 | Henry DOLAN | 10 | Grantham | |
| 4 | 9 | George LEONARD | 11 | Grantham | 3:33.61 |
| 5 | 10 | Samuel NICHOLS | 11 | Grantham | 3:33.47 |
| 6 | 11 | Thomas HILLSON | 10 | Grantham | 3:26.53 |
| 7 | 12 | Elliot GLEAVE | 10 | Grantham | 3:20.83 |
| 8 | 13 | Alfie HAIGH | 14 | Grantham | 3:10.36 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 15 | Theo BACON | 13 | Grantham | 3:04.02 |
| 2 | 17 | Ben CARLYLE | 13 | Grantham | 2:50.88 |
| 3 | 19 | Jacob FISH | 14 | Grantham | 2:21.00 |
| 4 | 21 | Owen HATHWAY | 17 | Grantham | 2:20.10 |
| 5 | 20 | Daniel DEGNAN | 15 | Grantham | 2:20.45 |
| 6 | 18 | Zach HOPKINSON | 14 | Grantham | 2:31.19 |
| 7 | 16 | Joel SADLER | 12 | Grantham | 3:02.12 |
| 8 | 14 | Oscar DURANT | 12 | Grantham | 3:08.12 |