EVENT 201 Boy 10 Yrs/Over 400m IM - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Aidan Penney | 12 | Wellingboro | 7:18.93 |
| 4 | 2 | Zachary Fraser | 12 | Wellingboro | 6:52.78 |
| 5 | 3 | Michal Wojcik | 13 | Northampton | 6:50.90 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 4 | Harry Lucas | 12 | Co Leicester | 6:39.65 |
| 3 | 5 | Freddie Burdett | 12 | Leic Peng | 6:32.00 |
| 4 | 6 | Oliver Girvan | 15 | Modernian | 6:14.47 |
| 5 | 7 | Adam O'Neal | 14 | Modernian | 6:14.29 |
| 6 | 8 | Ethan Simmonds | 13 | Co Leicester | 6:06.35 |
| 7 | 9 | Matthew Longman | 15 | Loughborough | 5:55.92 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 11 | Louis Booker | 15 | Wellingboro | 5:47.59 |
| 2 | 13 | Max Fletcher | 17 | Market Har | 5:39.72 |
| 3 | 15 | Jack Bignell | 14 | Northampton | 5:26.76 |
| 4 | 17 | Finn Reed | 15 | Loughborough | 5:16.26 |
| 5 | 16 | Alfie Molloy | 15 | Loughborough | 5:26.31 |
| 6 | 14 | Ethan Ford | 15 | Co Leicester | 5:38.53 |
| 7 | 12 | Maximilian Talalayenko | 15 | Northampton | 5:40.82 |
| 8 | 10 | Edward Oscroft | 13 | Northampton | 5:52.30 |