EVENT 501 Mens Open 400m IM - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 0 | 2 | Kyriacos Papa-Adams | 97 | Thanet Swim | 4:48.28 |
| 1 | 8 | Joseph Poynter | 95 | Millfield | 4:33.78 |
| 2 | 14 | Duncan Scott | 97 | F.I.R.S.T. | 4:37.53 |
| 3 | 20 | Chris Suggitt | 93 | Swim Swansea | 4:25.10 |
| 4 | 26 | Thomas Haffield | 88 | Co Cardiff | 4:27.40 |
| 5 | 23 | Xavier Mohammed | 90 | Co Cardiff | 4:25.14 |
| 6 | 17 | Fabian Whitbread | 92 | Warrender Ba | 4:33.81 |
| 7 | 11 | Earl Radtschenko | 96 | Co Coventry | 4:35.20 |
| 8 | 5 | James Row | 97 | Newburn | 4:50.75 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 0 | 3 | Paul Hentschel | 97 | SC Chemnitz | DQ:T . |
| 1 | 9 | Mark Szaranek | 95 | Carnegie | 4:30.73 |
| 2 | 15 | Rikki Morris | 90 | Co Coventry | 4:30.93 |
| 3 | 21 | Max Litchfield | 95 | Donc Dartes | 4:22.22 |
| 4 | 27 | Matthew Johnson | 95 | Co Sheffield | 4:22.26 |
| 5 | 24 | Ross Muir | 91 | F.I.R.S.T. | 4:28.27 |
| 6 | 18 | Nicholas Grainger | 94 | Co Sheffield | 4:25.16 |
| 7 | 12 | Charlie Dentith | 95 | BorRedbridge | 4:34.62 |
| 8 | 6 | David Richardson | 97 | Warrington W | 4:44.82 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 0 | 4 | Jarvis Parkinson | 98 | Donc Dartes | 4:40.68 |
| 1 | 10 | Martyn Walton | 97 | Hatfield | DN:C . |
| 2 | 16 | David Maxwell | 93 | Co Leeds | 4:35.68 |
| 3 | 22 | David Gregory | 92 | Co Sheffield | 4:28.66 |
| 4 | 28 | Roberto Pavoni | 91 | Loughboro Un | 4:22.80 |
| 5 | 25 | Lewis Smith | 88 | Warrender Ba | 4:26.88 |
| 6 | 19 | Fraser Minnican | 95 | Millfield | 4:30.77 |
| 7 | 13 | Alex Mackay | 92 | Co Cardiff | 4:35.21 |
| 8 | 7 | Luke Greenbank | 97 | Cockermouth | 4:42.87 |
| 9 | 1 | Joseph Hulme | 97 | Leek | 4:44.62 |