EVENT 501 Boy/Girl 09 Yrs/Over 400m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | E Versluis White | 9 | Retford | 8:50.00 |
| 2 | 3 | Lily Pashley | 10 | Retford | 8:50.00 |
| 3 | 5 | Isla O'Connor | 11 | Retford | 8:30.00 |
| 4 | 4 | Athena Pearson | 11 | Retford | 8:30.00 |
| 5 | 2 | Isla Richards | 9 | Retford | 8:50.00 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 7 | Mia Richards | 12 | Retford | 8:00.00 |
| 2 | 9 | Ava Pashley | 12 | Retford | 7:33.00 |
| 3 | 11 | Elizabeth Smith | 12 | Retford | 7:30.27 |
| 4 | 10 | Harrison Clark | 12 | Retford | 7:31.53 |
| 5 | 8 | Iona Watson | 12 | Retford | 7:33.00 |
| 6 | 6 | Imogen Howitt | 9 | Retford | 8:10.00 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 13 | Kacey Bryan | 12 | Retford | 7:21.30 |
| 2 | 15 | S Slater-Rowley | 12 | Retford | 7:03.20 |
| 3 | 17 | Lucy-Mae Osborne | 10 | Retford | 7:03.00 |
| 4 | 16 | Isabelle Rafferty | 10 | Retford | 7:03.00 |
| 5 | 14 | Harvey Bartrop | 11 | Retford | 7:20.00 |
| 6 | 12 | Rubie Slater-Rowley | 12 | Retford | 7:23.00 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 19 | Charlotte Clements | 11 | Retford | 6:55.00 |
| 2 | 21 | Thomas Collins | 11 | Retford | 6:55.00 |
| 3 | 23 | Jacob Hodkinson | 14 | Retford | 6:27.65 |
| 4 | 22 | Evie Holmes | 13 | Retford | 6:54.82 |
| 5 | 20 | Samuel Green | 11 | Retford | 6:55.00 |
| 6 | 18 | Reuben Meadows | 11 | Retford | 6:55.00 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 25 | Eve Milner | 14 | Retford | 5:11.00 |
| 2 | 27 | Freya Peace | 14 | Retford | 4:54.10 |
| 3 | 29 | Harry Brancham | 15 | Retford | 4:50.44 |
| 4 | 28 | Jennifer Walker | 13 | Retford | 4:52.35 |
| 5 | 26 | Kaitlyn Butters | 13 | Retford | 4:56.90 |
| 6 | 24 | Owen Rafferty | 13 | Retford | 5:25.40 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 31 | Seth Hinitt | 15 | Retford | 4:39.97 |
| 2 | 33 | Callum Kettlewell | 17 | Retford | 4:17.43 |
| 3 | 35 | Kacie Morgan | 14 | Retford | 4:06.00 |
| 4 | 34 | Cillian McGuinness | 16 | Retford | 4:15.82 |
| 5 | 32 | Lewis Warner | 16 | Retford | 4:32.20 |
| 6 | 30 | Amelia Stevenson | 16 | Retford | 4:49.50 |