EVENT 102 Boy 10 Yrs/Over 400m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Henry CARTER | 11 | Co Cambridge | 6:30.50 |
| 4 | 2 | Mawulinam ITO | 11 | Co Cambridge | 6:11.19 |
| 5 | 3 | William BARR | 14 | Royston | 5:54.22 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 4 | Marton MOLNAR | 12 | Co Cambridge | 5:33.77 |
| 2 | 5 | William WRATTEN | 13 | Co Cambridge | 5:29.16 |
| 3 | 6 | George CARTER | 13 | Co Cambridge | 5:21.84 |
| 4 | 7 | Gavin WHITE | 43 | Co Cambridge | 5:12.88 |
| 5 | 8 | Kirtan UTTARKAR | 15 | Co Peterboro | 5:08.88 |
| 6 | 9 | Francesco CLELAND FERD | 13 | Co Cambridge | 5:04.12 |
| 7 | 10 | Csanad REHUS | 12 | Co Peterboro | 5:02.52 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 12 | Kian LEE | 13 | Co Peterboro | 4:51.96 |
| 2 | 14 | James WILLIAMSON | 14 | Co Cambridge | 4:37.78 |
| 3 | 17 | Daniel MOYSES | 15 | Co Peterboro | 4:30.21 |
| 4 | 19 | Matthew MONIE | 16 | Co Cambridge | 4:18.90 |
| 5 | 18 | James PEACOCK | 15 | Co Peterboro | 4:29.07 |
| 6 | 16 | Orlando DEARING | 14 | Co Peterboro | 4:31.02 |
| 7 | 13 | Janos KADAR | 15 | Co Cambridge | 4:46.63 |
| 8 | 11 | Corey HUCKSTEP | 13 | West Suffolk | 4:59.18 |