EVENT 206 Open/Male 11 Yrs/Over 400m IM - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Ted Marshall | 11 | Leic Sharks | 6:09.10 |
| 4 | 3 | Tyler Shaw | 13 | Derby Excel | 5:50.60 |
| 5 | 2 | Harry Callaghan-Wetton | 12 | Nova Cent'n | 5:51.80 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 4 | Mark Kiraly | 12 | Nova Cent'n | 5:50.27 |
| 2 | 6 | Noah Dewsnap | 13 | Bassetlaw SS | 5:49.30 |
| 3 | 8 | Charlie Bisby | 13 | South Lincs | 5:43.50 |
| 4 | 10 | George Howard | 12 | Co Leicester | 5:36.90 |
| 5 | 9 | Toby Drayson | 13 | BelperMarlin | 5:39.96 |
| 6 | 7 | Francesco Monaco | 12 | South Lincs | 5:45.50 |
| 7 | 5 | Edward Gregory | 12 | Nova Cent'n | 5:49.84 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 12 | Kais Alhijazi | 13 | Co Leicester | 5:34.10 |
| 2 | 14 | Jacson Crabb | 13 | Co Leicester | 5:25.50 |
| 3 | 16 | Thomas Collins | 14 | Bassetlaw SS | 5:19.90 |
| 4 | 18 | William Oxley | 14 | Co Leicester | 5:17.80 |
| 5 | 17 | Samuel Green | 14 | Bassetlaw SS | 5:18.40 |
| 6 | 15 | Freddie Burdett | 14 | Co Leicester | 5:20.28 |
| 7 | 13 | Theo Gilham | 13 | Nova Cent'n | 5:31.10 |
| 8 | 11 | Maxwell Burdett | 12 | Co Leicester | 5:35.80 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 20 | Joseph Lauda | 15 | Repton | 5:13.83 |
| 2 | 22 | Joel Harby | 15 | Nova Cent'n | 5:10.90 |
| 3 | 24 | Lawrence Chapman | 16 | Worksop | 5:08.80 |
| 4 | 26 | Jack Smith | 14 | Co Leicester | 5:06.50 |
| 5 | 25 | Billy Harding | 15 | Repton | 5:07.30 |
| 6 | 23 | Edun Rowe | 16 | Northampton | 5:09.90 |
| 7 | 21 | Oliver Smith | 15 | Nova Cent'n | 5:11.10 |
| 8 | 19 | Harry Lucas | 14 | Co Leicester | 5:14.50 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 30 | Jacob Pemberton | 15 | Derby Excel | 5:01.00 |
| 2 | 36 | Daniel Walker | 17 | Nova Cent'n | 4:56.20 |
| 3 | 42 | Paul Page | 17 | Hinckley | 4:54.40 |
| 4 | 48 | Joseph Mulligan | 18 | Nova Cent'n | 4:41.20 |
| 5 | 45 | James Lake | 17 | Loughborough | 4:47.70 |
| 6 | 39 | Oliver Oxley | 18 | Co Leicester | 4:55.17 |
| 7 | 33 | Jack Goldfinch | 18 | Loughborough | 4:59.20 |
| 8 | 27 | Thomas Townsend | 15 | Repton | 5:04.04 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 31 | Noah Van Hoorebeek | 17 | Chesterfield | 4:59.40 |
| 2 | 37 | Niklas Saukko-Paavola | 16 | Nova Cent'n | 4:56.00 |
| 3 | 43 | Jack Bignell | 16 | Northampton | 4:52.65 |
| 4 | 49 | Elliot Sibley | 19 | Nova Cent'n | 4:41.20 |
| 5 | 46 | Luke Stevens | 18 | Co Leicester | 4:44.90 |
| 6 | 40 | Daniel Harris | 17 | Co Leicester | 4:54.90 |
| 7 | 34 | Jacob Fish | 15 | Grantham | 4:57.80 |
| 8 | 28 | Oliver Richmond | 16 | Nova Cent'n | 5:02.00 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 32 | Harrison Clarke | 16 | Nova Cent'n | 4:59.30 |
| 2 | 38 | Oscar Goldsmith | 16 | South Lincs | 4:55.30 |
| 3 | 44 | Austyn Manley | 14 | Repton | 4:49.44 |
| 4 | 50 | Samuel Cooke | 18 | Corby | 4:39.30 |
| 5 | 47 | Findlay Cordle | 17 | Repton | 4:43.90 |
| 6 | 41 | Luke Chambers | 16 | Nova Cent'n | 4:54.60 |
| 7 | 35 | Jack Hurry | 15 | Northampton | 4:56.63 |
| 8 | 29 | Manav Mistry | 17 | Northampton | 5:01.02 |