EVENT 551 Men/Women Open 400m Freestyle - Heats
Not Competing : 6
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 1 | Elliot BARKWAY | 12 | DOTT | |
| 2 | 3 | Amber DALY | 12 | DOTT | |
| 3 | 2 | Paul PERRIN | 43 | DOTT | |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 5 | Noah BLAIR | 11 | DOTT | 6:58.30 |
| 2 | 8 | Imogen GRIMES | 16 | DOTT | 5:39.73 |
| 3 | 7 | Ciaran STRIKE | 12 | DOTT | 6:07.38 |
| 4 | 4 | Molly WILSON | 13 | DOTT | 7:03.92 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 10 | Thea IRVINE | 15 | DOTT | 5:05.62 |
| 2 | 12 | Harry DALY | 16 | DOTT | 4:51.09 |
| 3 | 11 | Adam LELEAN | 58 | DOTT | 4:53.91 |
| 4 | 9 | Finlay NEVE | 12 | DOTT | 5:38.70 |