EVENT 201 Boys 11/13 Yrs 400m IM - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 3 | 1 | Thomas Gartside | 11 | Northampton | 6:05.50 |
| 4 | 2 | Tomos Beech | 12 | Nova Cent'n | 6:03.30 |
| 5 | 3 | James Annable | 12 | Kettering | 6:03.00 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 2 | 4 | Cameron Breedon | 12 | Nova Cent'n | 6:02.50 |
| 3 | 5 | Sebastian Lee | 12 | Co Derby | 6:02.10 |
| 4 | 6 | Samuel Leveridge | 12 | Calv Bing | 5:59.15 |
| 5 | 7 | Zak Frisby | 11 | Radford | 5:57.24 |
| 6 | 8 | Callum Melville | 12 | Grantham | 5:55.61 |
| 7 | 9 | Oliver Oxley | 12 | Co Leicester | 5:54.79 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 10 | Luke Stevens | 12 | Leic Sharks | 5:53.50 |
| 2 | 11 | Malachy Watt | 12 | Derventio | 5:50.40 |
| 3 | 12 | Kieran Howard | 12 | Nova Cent'n | 5:49.29 |
| 4 | 13 | Declan Luff | 12 | Leic Sharks | 5:46.40 |
| 5 | 14 | Isaac Caddy | 13 | Derventio | 5:45.61 |
| 6 | 15 | Oliver Silver | 12 | Nova Cent'n | 5:45.59 |
| 7 | 16 | Lucas Ellis | 12 | Nova Cent'n | 5:44.48 |
| 8 | 17 | Thomas Polley | 12 | Nova Cent'n | 5:43.79 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 18 | Noah Rai | 12 | Nova Cent'n | 5:42.09 |
| 2 | 19 | Matthew Jackson | 13 | Nova Cent'n | 5:41.86 |
| 3 | 20 | Henry Knight | 13 | Rushden | 5:40.50 |
| 4 | 21 | Sammy Rahimzadeh | 13 | Nova Cent'n | 5:40.26 |
| 5 | 22 | Elliot Sibley | 13 | Nova Cent'n | 5:39.90 |
| 6 | 23 | Lewis Brown | 13 | Derventio | 5:39.06 |
| 7 | 24 | Adam Read | 13 | Nova Cent'n | 5:38.58 |
| 8 | 25 | George Whittle | 12 | Derventio | 5:34.69 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 27 | Max Davies | 13 | Nova Cent'n | 5:28.01 |
| 2 | 29 | Billy Reed | 13 | Grantham | 5:20.17 |
| 3 | 31 | Rico Bringeman | 13 | Boston | 5:11.77 |
| 4 | 33 | Finley Bunhejee | 13 | NottmLeander | 4:58.09 |
| 5 | 32 | Liam Dawson | 13 | Nova Cent'n | 5:04.29 |
| 6 | 30 | Samuel Smith | 13 | Northampton | 5:16.10 |
| 7 | 28 | Connor Byron | 13 | Nova Cent'n | 5:20.30 |
| 8 | 26 | Michael Senior | 13 | Nova Cent'n | 5:34.01 |