EVENT 201 Boys 11/13 Yrs 400m IM - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 1 | Thomas Daft | 12 | Coalville | 6:14.90 |
| 2 | 2 | Reuben Heywood | 12 | Louth | 6:13.55 |
| 3 | 3 | Matthew Jackson | 12 | Nova Cent'n | 5:58.85 |
| 4 | 4 | Max Davies | 12 | Nova Cent'n | 6:03.78 |
| 5 | 5 | Sammy Rahimzadeh | 12 | Nova Cent'n | 6:23.69 |
| 6 | 6 | Max Shaw | 12 | Northampton | 5:58.43 |
| 7 | 7 | Jake Hotham | 12 | Chesterfield | 6:10.81 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 8 | Jack Robinson | 12 | Boston | DQ:T . |
| 2 | 9 | Michael Senior | 12 | Nova Cent'n | 5:49.68 |
| 3 | 10 | Adam Read | 12 | Nova Cent'n | 5:56.12 |
| 4 | 11 | Connor Wilcox | 13 | Nova Cent'n | 5:44.01 |
| 5 | 12 | Callum Peel | 13 | Nova Cent'n | 5:42.52 |
| 6 | 13 | Samuel Smith | 12 | Northampton | 5:37.39 |
| 7 | 14 | James Dobney | 13 | Grantham | 5:46.31 |
| 8 | 15 | Connor Byron | 12 | Nova Cent'n | 5:44.36 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 16 | Joseph Vickers | 12 | Boston | 5:38.07 |
| 2 | 17 | William Turnock | 13 | Nova Cent'n | 6:01.22 |
| 3 | 18 | Younis Peach | 13 | Northampton | 5:36.63 |
| 4 | 19 | Callum Kettlewell | 13 | Retford | 5:33.63 |
| 5 | 20 | Samual Nicholls | 13 | Chesterfield | 5:30.90 |
| 6 | 21 | Finley Bunhejee | 12 | Nova Cent'n | 5:21.55 |
| 7 | 22 | Rico Bringeman | 12 | Boston | 5:41.69 |
| 8 | 23 | Liam Dawson | 12 | Derventio | 5:33.84 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 25 | Razvan Grumazescu | 13 | Northampton | 5:34.55 |
| 2 | 27 | Brandon Hotham | 13 | Chesterfield | DQ:T . |
| 3 | 29 | Harvey Freeman | 13 | Northampton | 5:15.62 |
| 4 | 31 | Jacob Whittle | 13 | Derventio | 5:07.78 |
| 5 | 30 | Nathan Allen | 13 | Co Leicester | 5:19.22 |
| 6 | 28 | Austin Johns | 13 | Co Leicester | 5:25.78 |
| 7 | 26 | Matthew Woodhall | 13 | Nova Cent'n | 5:19.68 |
| 8 | 24 | Alexander Casey | 13 | Co Leicester | 5:19.30 |