EVENT 102 Boy/Girl Open 800m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 1 | Lexie SHEWAN | 11 | Grantham | |
| 3 | 2 | Harriet MCCORMACK | 12 | Grantham | |
| 4 | 3 | Jacob FISH | 12 | Grantham | |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 4 | Grace MACDONALD | 12 | Grantham | |
| 2 | 5 | Jessica-Rose DAVISON | 12 | Grantham | |
| 3 | 6 | Grace HOWITT | 12 | Grantham | |
| 4 | 7 | Zach HOPKINSON | 12 | Grantham | |
| 5 | 8 | Luke DAYBELL | 12 | Grantham | |
| 6 | 9 | Elena ALDENHOFF-KELLY | 13 | Grantham | |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 11 | Alexandra HALLAM-STOTT | 15 | Grantham | 11:08.24 |
| 2 | 13 | Grace TURNER | 14 | Grantham | 10:07.23 |
| 3 | 15 | James DOBNEY | 17 | Grantham | 8:57.25 |
| 4 | 14 | Owen HATHWAY | 15 | Grantham | 9:49.89 |
| 5 | 12 | Francesca HALLAM-STOTT | 14 | Grantham | 10:15.57 |
| 6 | 10 | Rianna ABBOTT | 13 | Grantham | 15:37.14 |