EVENT 401 Boys 11/13 Yrs 400m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 3 | 1 | Thomas Currie | 12 | Northampton | 5:11.84 |
| 4 | 2 | Oliver Sydenham | 12 | Boston | 5:08.72 |
| 5 | 3 | Samual Nicholls | 12 | Chesterfield | 5:06.58 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 4 | Angus McCallion | 12 | Nova Cent'n | 5:06.10 |
| 2 | 5 | Younis Peach | 12 | Northampton | 5:04.45 |
| 3 | 6 | Jacob Whittle | 12 | Derventio | 5:03.52 |
| 4 | 7 | Callum Kettlewell | 12 | Nova Cent'n | 5:03.27 |
| 5 | 8 | Joseph Vickers | 11 | Boston | 5:00.95 |
| 6 | 9 | Bradley Knight | 12 | Leic Sharks | 5:00.93 |
| 7 | 10 | Alex Keeble | 12 | Leic Sharks | 5:00.50 |
| 8 | 11 | Oliver Crane | 12 | Co Leicester | 4:59.13 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 12 | Razvan Grumazescu | 12 | Northampton | 4:58.80 |
| 2 | 13 | James Cox | 12 | Nova Cent'n | 4:58.34 |
| 3 | 14 | Brandon Hotham | 12 | Chesterfield | 4:58.14 |
| 4 | 15 | Jack Edis | 13 | Nova Cent'n | 4:57.30 |
| 5 | 16 | Charlie Kaletha | 12 | Co Leicester | 4:57.02 |
| 6 | 17 | Kieran Bott | 13 | Co Leicester | 4:56.99 |
| 7 | 18 | Joshua Hill | 13 | Daventry | 4:56.96 |
| 8 | 19 | Alexander Casey | 12 | Co Leicester | 4:55.36 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 20 | Edward Durham | 13 | Nova Cent'n | 4:54.91 |
| 2 | 21 | Luke Jeal | 13 | Leic Sharks | 4:54.20 |
| 3 | 22 | Ben Willison | 13 | Northampton | 4:53.00 |
| 4 | 23 | William Beasley | 13 | Co Leicester | 4:52.40 |
| 5 | 24 | Benjamin Pierpoint | 13 | Nova Cent'n | 4:50.80 |
| 6 | 25 | Joshua Vance | 13 | Northampton | 4:50.50 |
| 7 | 26 | Kai Bacon | 13 | Co Leicester | 4:50.33 |
| 8 | 27 | Adam Banks | 13 | Derventio | 4:49.90 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 28 | Nicholas Meldrum | 13 | Nova Cent'n | 4:48.24 |
| 2 | 29 | Bradley Evans | 13 | Long Eaton | 4:48.00 |
| 3 | 30 | Matthew Fearn | 13 | Nova Cent'n | 4:46.50 |
| 4 | 31 | Joshua Skinner | 13 | Nova Cent'n | 4:46.40 |
| 5 | 32 | Guy Farnsworth | 13 | Co Derby | 4:46.30 |
| 6 | 33 | Joseph Sadler | 13 | Nova Cent'n | 4:46.16 |
| 7 | 34 | Patrick Mahney | 13 | Northampton | 4:45.50 |
| 8 | 35 | Thomas Deeley | 13 | Nova Cent'n | 4:45.40 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 37 | Jevon Penny | 13 | Northampton | 4:42.50 |
| 2 | 39 | Jimi Knowles | 13 | Nova Cent'n | 4:39.70 |
| 3 | 41 | Joseph Kingsland | 13 | Nova Cent'n | 4:31.40 |
| 4 | 43 | Edward Mildred | 13 | Northampton | 4:24.40 |
| 5 | 42 | Dominic Bools | 13 | Nova Cent'n | 4:30.10 |
| 6 | 40 | Joey Tippin | 13 | Leic Peng | 4:31.60 |
| 7 | 38 | James Bartley | 13 | Co Leicester | 4:42.20 |
| 8 | 36 | Jack Gartside | 13 | Northampton | 4:44.60 |