EVENT 22 Open/Male 200m Backstroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | George OLA | 10 | Lincoln TSA | 4:25.61 |
| 4 | 2 | George DOLAN | 9 | Grantham | 3:50.60 |
| 5 | 3 | Benjamin BROWN | 10 | Deepings | 3:45.00 |
| 6 | 4 | Logan SHARPE | 12 | Lincoln Vulc | 3:30.00 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 5 | William PENNOCK | 12 | Grantham | 3:30.00 |
| 2 | 6 | Henry LEONARD | 9 | Grantham | 3:30.00 |
| 3 | 7 | Ethan PEART | 10 | Deepings | 3:19.58 |
| 4 | 8 | Louis WRIGHT | 12 | Grantham | 3:14.86 |
| 5 | 9 | Hayden WHITTAKER | 12 | Louth | 3:09.86 |
| 6 | 10 | Toby BROWN | 13 | Deepings | 3:02.84 |
| 7 | 11 | Derrin BROCKLEBANK | 12 | Grantham | 3:02.18 |
| 8 | 12 | Freddie HIRST | 11 | Grantham | 2:58.08 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 14 | Cameron JAMISON | 11 | Lincoln TSA | 2:52.81 |
| 2 | 16 | Thomas HILLSON | 12 | Grantham | 2:37.92 |
| 3 | 18 | Chris WILLERTON | 41 | Skegness | 2:33.20 |
| 4 | 20 | Oliver CLARKE | 13 | Deepings | 2:29.02 |
| 5 | 19 | George LEONARD | 13 | Grantham | 2:32.85 |
| 6 | 17 | Oliver SHEPHERD | 16 | Deepings | 2:36.30 |
| 7 | 15 | Toby EDMONDSON | 11 | Grantham | 2:50.36 |
| 8 | 13 | Oscar WOOD | 13 | Lincoln Vulc | 2:53.93 |