EVENT 201 Mens 14 Yrs/Over 400m IM - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 3 | 2 | Lewis Brown | 14 | Derventio | 5:30.21 |
| 4 | 4 | Tristan Dixon-Teasdale | 14 | Nova Cent'n | 5:25.88 |
| 5 | 3 | Charlie Canavan | 14 | Nova Cent'n | 5:30.04 |
| 6 | 1 | Robert Taylor | 14 | Corby | 5:31.70 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 6 | Henry Knight | 14 | Rushden | 5:24.40 |
| 1 | 8 | McKenzie Matthews | 14 | Nova Cent'n | 5:22.23 |
| 2 | 10 | Joseph Lund | 15 | South Lincs | 5:19.65 |
| 3 | 12 | Billy Reed | 14 | Grantham | 5:17.60 |
| 4 | 14 | James Cox | 15 | Calv Bing | 5:17.00 |
| 5 | 13 | Max Davies | 14 | Nova Cent'n | 5:17.60 |
| 6 | 11 | Connor Byron | 14 | NottmLeander | 5:17.80 |
| 7 | 9 | Declan Breedon | 15 | Calv Bing | 5:20.15 |
| 8 | 7 | Sammy Rahimzadeh | 14 | Nova Cent'n | 5:22.70 |
| 9 | 5 | Michael Senior | 14 | Nova Cent'n | 5:24.70 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 16 | Gabriel Oyaide-Nicholl | 16 | Nova Cent'n | 5:14.47 |
| 1 | 18 | Elliot Sibley | 14 | Nova Cent'n | 5:13.80 |
| 2 | 20 | Jack Stretton | 15 | Co Leicester | 5:13.00 |
| 3 | 22 | Alex Keeble | 15 | Leic Sharks | 5:10.99 |
| 4 | 24 | Kyle Merryweather | 15 | Nova Cent'n | 5:09.30 |
| 5 | 23 | Henry Crust | 14 | Co Lincoln P | 5:10.80 |
| 6 | 21 | James Dobney | 15 | Grantham | 5:11.80 |
| 7 | 19 | Jack Coleman | 15 | Coalville | 5:13.10 |
| 8 | 17 | Thomas Dixon | 14 | Co Leicester | 5:14.46 |
| 9 | 15 | Aidan Joubert | 14 | Co Derby | 5:14.80 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 26 | Ashley Lucas | 14 | Northampton | 5:06.86 |
| 1 | 28 | Samuel Smith | 14 | Northampton | 5:05.91 |
| 2 | 30 | Razvan Grumazescu | 15 | Northampton | 5:03.74 |
| 3 | 32 | Atticus Strickland | 16 | South Lincs | 5:02.70 |
| 4 | 34 | Luke Blanchard | 18 | South Lincs | 4:59.60 |
| 5 | 33 | Connor Thorpe | 14 | Derventio | 5:01.98 |
| 6 | 31 | Thomas Currie | 15 | Northampton | 5:02.83 |
| 7 | 29 | Joseph Vickers | 14 | Boston | 5:05.40 |
| 8 | 27 | Samual Nicholls | 15 | Chesterfield | 5:06.09 |
| 9 | 25 | George Berwick | 16 | Grantham | 5:07.80 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 36 | James Newman | 17 | Market Har | 4:58.40 |
| 1 | 38 | Joseph Fletcher | 17 | Leic Sharks | 4:57.80 |
| 2 | 40 | Christopher Snow | 17 | Leic Sharks | 4:56.60 |
| 3 | 42 | Jacob Whittle | 15 | Derventio | 4:54.72 |
| 4 | 44 | Liam Dawson | 14 | Nova Cent'n | 4:53.30 |
| 5 | 43 | Ethan Grace Riches | 16 | Co Lincoln P | 4:53.30 |
| 6 | 41 | Adam Banks | 16 | Derventio | 4:56.60 |
| 7 | 39 | Luke Jeal | 16 | Leic Sharks | 4:57.69 |
| 8 | 37 | Finlay Chapman | 18 | Braunstone | 4:57.90 |
| 9 | 35 | Rico Bringeman | 14 | Boston | 4:58.48 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 47 | Thomas White | 17 | Nova Cent'n | 4:51.44 |
| 1 | 51 | Daniel Kennedy | 15 | Co Leicester | 4:47.72 |
| 2 | 55 | Harvey Freeman | 15 | Northampton | 4:40.70 |
| 3 | 59 | Jack Buswell | 18 | Northampton | 4:37.10 |
| 4 | 63 | Max Murphy | 19 | Loughboro Un | 4:27.90 |
| 5 | 61 | Archie Plowman | 18 | Northampton | 4:33.00 |
| 6 | 57 | Aron Preece | 20 | Nova Cent'n | 4:40.20 |
| 7 | 53 | Joshua Vance | 16 | Northampton | 4:44.55 |
| 8 | 49 | Ryan Wilcox | 17 | Nova Cent'n | 4:48.44 |
| 9 | 45 | Patrick Mahney | 16 | Northampton | 4:53.13 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 48 | Ryan Huddart | 18 | Derventio | 4:49.10 |
| 1 | 52 | Liam Snook | 21 | Northampton | 4:45.77 |
| 2 | 56 | Daniel Wilson | 20 | Loughboro Un | 4:40.30 |
| 3 | 60 | Jackson O'Rourke | 17 | Northampton | 4:34.80 |
| 4 | 64 | William Bell | 17 | Co Leicester | 4:26.60 |
| 5 | 62 | Michael Rees | 19 | Nova Cent'n | 4:30.60 |
| 6 | 58 | Samuel Blackett | 21 | Northampton | 4:38.83 |
| 7 | 54 | Joseph Kingsland | 16 | Nova Cent'n | 4:43.22 |
| 8 | 50 | Jevon Penny | 16 | Northampton | 4:47.80 |
| 9 | 46 | Xeimon Parker-Cox | 17 | Leic Sharks | 4:51.70 |