EVENT 209 Boys Open 400m IM - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 2 | 1 | Benjamin FOULSTON | 15 | Nova Cent'n | |
| 3 | 3 | Christopher SNEESBY | 13 | Leicester Ne | 6:46.27 |
| 4 | 5 | Austin JOHNS | 11 | Co Leicester | 6:41.76 |
| 5 | 4 | Nathan ALLEN | 11 | Co Leicester | 6:45.00 |
| 6 | 2 | Alex SUTTON | 11 | Leic Sharks | 7:41.41 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 7 | Adam TILLEY | 12 | Co Leicester | 6:38.50 |
| 2 | 9 | Ashley LUCAS | 10 | Northampton | 6:34.28 |
| 3 | 11 | Razvan GRUMAZESCU | 11 | Northampton | 6:13.30 |
| 4 | 13 | Luke BLANCHARD | 14 | South Lincs | 6:04.06 |
| 5 | 12 | James WATSON | 13 | Co Leicester | 6:11.11 |
| 6 | 10 | Younis PEACH | 11 | Northampton | 6:17.06 |
| 7 | 8 | Alexander CASEY | 11 | Co Leicester | 6:37.21 |
| 8 | 6 | Bradley KNIGHT | 11 | Leic Sharks | 6:40.46 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 15 | Luca DE ZILVA | 12 | Leic Sharks | 5:58.82 |
| 2 | 17 | Joseph FLETCHER | 13 | Leic Sharks | 5:55.46 |
| 3 | 19 | Louis BOOT | 14 | Rushden | 5:54.73 |
| 4 | 21 | Owen HALL | 15 | Louth | 5:10.90 |
| 5 | 20 | Kai BACON | 12 | Co Leicester | 5:47.73 |
| 6 | 18 | Rakshansingh PARMESSUR | 14 | Co Leicester | 5:55.13 |
| 7 | 16 | James BARTLEY | 12 | Co Leicester | 5:58.73 |
| 8 | 14 | Jonathan HARRISON | 14 | Coalville | 6:01.49 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 23 | Jonathan BENNETT | 17 | Leic Sharks | 5:09.00 |
| 2 | 25 | Caleb MACKEY | 16 | Grantham | 5:08.12 |
| 3 | 27 | Aron PREECE | 16 | Shrewsbury | 5:03.53 |
| 4 | 29 | Kieran WHEATLEY | 16 | Co Leicester | 4:40.90 |
| 5 | 28 | Jack WILSON | 17 | Nova Cent'n | 5:00.57 |
| 6 | 26 | Samuel BLACKETT | 17 | Northampton | 5:05.20 |
| 7 | 24 | Michael DOYLE | 15 | Shrewsbury | 5:08.89 |
| 8 | 22 | Thomas LEWIS | 15 | Grantham | 5:09.17 |