EVENT 106 Boys 200m Breaststroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 1 | Thomas KINNEAR | 13 | Grantham | |
| 3 | 2 | Woody CLARK | 9 | Grantham | |
| 4 | 3 | Oscar CHEN REES | 11 | Grantham | |
| 5 | 4 | Barnaby DURANT | 10 | Grantham | |
| 6 | 5 | Alex NEVARD | 11 | Grantham | |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 6 | Alfie HAIGH | 14 | Grantham | |
| 2 | 7 | Benjamin GODDARD | 10 | Grantham | 4:58.21 |
| 3 | 8 | Leo BARNETT | 11 | Grantham | 4:12.00 |
| 4 | 9 | Elliot GLEAVE | 10 | Grantham | 4:04.81 |
| 5 | 10 | Henry DOLAN | 10 | Grantham | 3:50.00 |
| 6 | 11 | George LEONARD | 11 | Grantham | 3:46.50 |
| 7 | 12 | Ben CARLYLE | 13 | Grantham | 3:41.48 |
| 8 | 13 | A BREARLEY-NEWSOME | 12 | Grantham | 3:36.38 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 15 | Joel SADLER | 12 | Grantham | 3:25.86 |
| 2 | 17 | James NICHOLS | 14 | Grantham | 2:55.94 |
| 3 | 19 | Jack ZERAVICA | 15 | Grantham | 2:48.08 |
| 4 | 21 | Zach HOPKINSON | 14 | Grantham | 2:37.62 |
| 5 | 20 | Daniel DEGNAN | 15 | Grantham | 2:47.09 |
| 6 | 18 | Jacob FISH | 14 | Grantham | 2:51.89 |
| 7 | 16 | Samuel NICHOLS | 11 | Grantham | 3:25.81 |
| 8 | 14 | Oscar DURANT | 12 | Grantham | 3:31.87 |