EVENT 13 Boys/Girls Open 1500m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 1 | Elizabeth MCCLUSKEY | 12 | Co Cambridge | 25:00.00 |
| 2 | 2 | James WILLIAMSON | 11 | Co Cambridge | 24:43.59 |
| 3 | 3 | Ryan HOWE | 12 | Co Cambridge | 24:00.00 |
| 4 | 4 | Austin HARROP | 12 | Co Cambridge | 24:00.00 |
| 5 | 5 | Archie SCOTT | 12 | Co Cambridge | 23:00.00 |
| 6 | 6 | Stephen BUCKLEY | 41 | Co Cambridge | 22:30.00 |
| 7 | 7 | Max WITHERS | 13 | Co Cambridge | 20:28.00 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 9 | Christopher WILLIAMSON | 13 | Co Cambridge | 19:30.90 |
| 2 | 11 | Kathryn GILL | 30 | Co Cambridge | 18:45.00 |
| 3 | 13 | Sebastian VANDERMEER | 15 | Co Cambridge | 18:07.00 |
| 4 | 15 | Almudena VISSER VELEZ | 16 | Co Cambridge | 18:03.29 |
| 5 | 14 | Oskar FARKAS | 13 | Co Cambridge | 18:05.50 |
| 6 | 12 | Meghan MULHERN | 22 | Co Cambridge | 18:45.00 |
| 7 | 10 | Matthew MONIE | 13 | Co Cambridge | 19:29.50 |
| 8 | 8 | Oliver RANA-BEADLE | 13 | Co Cambridge | 20:00.20 |