EVENT 102 Men Open 1500m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Daniel Clayton | 16 | teamipswich | 18:02.80 |
| 4 | 3 | Finlay Neve | 14 | Co Norwich | 17:54.07 |
| 5 | 2 | George Hooper | 15 | Co St Albans | 17:56.22 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 4 | Corey Hare | 16 | Colchester | 17:52.20 |
| 2 | 6 | Lewis Archer | 25 | Halstead | 17:40.85 |
| 3 | 8 | Patch Robinson | 15 | teamipswich | 17:31.50 |
| 4 | 10 | Charlie McKinnon | 15 | St Felix Sch | 17:27.34 |
| 5 | 9 | James Peacock | 16 | Co Peterboro | 17:29.50 |
| 6 | 7 | Daniel Thompson | 15 | Thurrock | 17:39.22 |
| 7 | 5 | Jack Abram | 17 | Co Norwich | 17:43.53 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 12 | Daniel Belsey | 14 | Hatfield | 17:22.60 |
| 2 | 14 | Thomas Ford | 16 | Basildon Ph | 17:05.31 |
| 3 | 16 | Daniel Moyses | 16 | Co Peterboro | 16:58.80 |
| 4 | 18 | Daniel McGuinness | 16 | Basildon Ph | 16:09.57 |
| 5 | 17 | Ryan Wall | 15 | Co Cambridge | 16:45.50 |
| 6 | 15 | Joe Power | 15 | Basildon Ph | 17:02.31 |
| 7 | 13 | Orlando Dearing | 14 | Co Peterboro | 17:14.30 |
| 8 | 11 | Jack Barnard | 17 | Potters Bar | 17:22.74 |