EVENT 208 Open/Male 09 /Over 200m Backstroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Oscar BEMBRIDGE | 10 | Grantham | |
| 2 | 2 | Benjamin SHEARN | 12 | Grantham | 3:38.12 |
| 3 | 3 | George DOLAN | 10 | Grantham | 3:35.99 |
| 4 | 4 | Henry LEONARD | 10 | Grantham | 3:31.29 |
| 5 | 5 | Benjamin GODDARD | 13 | Grantham | 3:25.86 |
| 6 | 6 | Daniel GODDARD | 11 | Grantham | 3:17.36 |
| 7 | 7 | Henry DOLAN | 13 | Grantham | 3:10.34 |
| 8 | 8 | Cyril BAO | 10 | Grantham | 3:09.39 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 9 | William PENNOCK | 12 | Grantham | 2:59.52 |
| 2 | 10 | Freddie HIRST | 12 | Grantham | 2:58.08 |
| 3 | 11 | Joshua KIM | 14 | Grantham | 2:57.37 |
| 4 | 12 | Jimmin BAO | 13 | Grantham | 2:56.59 |
| 5 | 13 | Louis WRIGHT | 13 | Grantham | 2:53.91 |
| 6 | 14 | Leo BARNETT | 14 | Grantham | 2:53.83 |
| 7 | 15 | Elliot GLEAVE | 13 | Grantham | 2:50.95 |
| 8 | 16 | Toby EDMONDSON | 12 | Grantham | 2:50.36 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 18 | Thomas HILLSON | 13 | Grantham | 2:37.08 |
| 2 | 20 | Zach HOPKINSON | 17 | Grantham | 2:28.83 |
| 3 | 22 | Francesco MONACO | 14 | Grantham | 2:21.89 |
| 4 | 24 | Ben CARLYLE | 16 | Grantham | 2:05.46 |
| 5 | 23 | James DOBNEY | 22 | Grantham | 2:18.00 |
| 6 | 21 | Kieran LUCY | 16 | Grantham | 2:22.70 |
| 7 | 19 | George LEONARD | 14 | Grantham | 2:32.85 |
| 8 | 17 | Markas PARAPIJONAVICIU | 13 | Grantham | 2:37.23 |