EVENT 103 Mixed 11 Yrs/Over 1500m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Jack Wilson | 13 | Co Coventry | 21:33.50 |
| 4 | 3 | Amy Taylor | 13 | Grantham | 20:34.05 |
| 5 | 2 | Ruby Keetley | 12 | Evesham | 20:41.57 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 5 | Freya Smith | 15 | Co Coventry | 20:20.63 |
| 2 | 7 | Lucy Willatts | 13 | Grantham | 19:57.70 |
| 3 | 9 | Bridie Regan-Morris | 17 | Co Coventry | 19:48.59 |
| 4 | 11 | Grace Whalley | 18 | Biddulph | 19:43.13 |
| 5 | 10 | Lauren Morley | 15 | Kettering | 19:43.70 |
| 6 | 8 | Oliver Horne | 15 | Corby | 19:52.00 |
| 7 | 6 | Sophie Conway | 16 | Lichfield | 20:07.85 |
| 8 | 4 | Katy Smith | 14 | Evesham | 20:30.24 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 14 | Alexander Kabat | 15 | Banbury | 18:12.12 |
| 2 | 16 | Daniel Roche | 15 | Leamington | 17:58.68 |
| 3 | 19 | Ethan Krol | 15 | Co Coventry | 16:55.66 |
| 4 | 21 | James Raw | 17 | EllesmereCSA | 15:54.50 |
| 5 | 20 | Joseph Storr | 15 | Co Coventry | 16:48.90 |
| 6 | 17 | Jamie Wilson | 15 | West Norfolk | 17:22.50 |
| 7 | 15 | Elizabeth Lyons | 16 | Co Liverpool | 18:08.30 |
| 8 | 13 | Ethan Wallis | 13 | Norwich Swan | 18:56.51 |