EVENT 110 Mens Open 400m IM - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 3 | 1 | Jackson O'Rourke | 14 | Northampton | 4:55.53 |
| 4 | 3 | Edward Mildred | 13 | Northampton | 4:53.50 |
| 5 | 2 | Jim Fergie | 15 | Nova Cent'n | 4:54.11 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 4 | Christopher Hooper | 15 | Ellesmere Co | 4:52.80 |
| 2 | 6 | Billy Pettit | 15 | Northampton | 4:51.91 |
| 3 | 8 | Joseph Kingsland | 13 | Nova Cent'n | 4:50.68 |
| 4 | 10 | Ben Cope | 15 | Royal Wolv | 4:49.20 |
| 5 | 9 | Ryan Wilcox | 14 | Nova Cent'n | 4:49.34 |
| 6 | 7 | Huw Hillson | 14 | Droitwich | 4:51.30 |
| 7 | 5 | Luke Skelding | 14 | Co Birm'ham | 4:52.00 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 12 | Simon Scully | 17 | Co Leicester | 4:48.40 |
| 2 | 14 | Blake Stanley | 16 | Northampton | 4:48.19 |
| 3 | 16 | Matthew Richards | 14 | Royal Wolv | 4:46.93 |
| 4 | 18 | Edward Bromley | 17 | Lincoln Vulc | 4:46.50 |
| 5 | 17 | Thomas Smith | 18 | Northampton | 4:46.80 |
| 6 | 15 | Bradley Capell | 18 | Co Leicester | 4:47.10 |
| 7 | 13 | Harry Bamforth | 16 | Ellesmere Co | 4:48.20 |
| 8 | 11 | Liam Snook | 18 | Northampton | 4:49.15 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 22 | James Bilbao | 15 | Co Hereford | 4:45.00 |
| 2 | 28 | Samuel Blackett | 18 | Northampton | 4:41.50 |
| 3 | 34 | Caleb Mackey | 17 | Grantham | 4:34.60 |
| 4 | 40 | Luke Greenbank | 19 | Co Derby | 4:27.10 |
| 5 | 37 | Edward Baxter | 18 | Co Derby | 4:31.52 |
| 6 | 31 | Joshua Harris | 15 | Nova Cent'n | 4:38.98 |
| 7 | 25 | James Millar | 18 | Loughboro Un | 4:43.10 |
| 8 | 19 | Kyle Swannick | 17 | Co Derby | 4:45.99 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 23 | Oliver Watson | 14 | Co Birm'ham | 4:44.74 |
| 2 | 29 | Luke Elliott | 17 | South Lincs | 4:41.48 |
| 3 | 35 | William Slawson | 19 | Wrekin Coll | 4:33.30 |
| 4 | 41 | Charlie Hutchison | 14 | Ellesmere Co | 4:24.60 |
| 5 | 38 | Kieran Wheatley | 17 | Co Leicester | 4:29.10 |
| 6 | 32 | William Foster | 16 | Co Derby | 4:38.40 |
| 7 | 26 | Aron Preece | 17 | Wrekin Coll | 4:42.68 |
| 8 | 20 | Kane Murcott | 16 | Royal Wolv | 4:45.64 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 24 | Matthew Holland | 18 | Wolv'hampton | 4:44.10 |
| 2 | 30 | Archie Plowman | 15 | Northampton | 4:39.14 |
| 3 | 36 | William Bell | 14 | Co Leicester | 4:32.60 |
| 4 | 42 | Craig Munden | 19 | Loughboro Un | 4:23.60 |
| 5 | 39 | James Brown | 19 | Loughboro Un | 4:27.40 |
| 6 | 33 | Harry Hathaway | 19 | Leic Peng | 4:36.50 |
| 7 | 27 | Gregory Butler | 16 | Co Derby | 4:42.51 |
| 8 | 21 | Leo Karski | 15 | Boldmere | 4:45.20 |