| Heat Number - 1 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Luca HALLAM | 10 | Grantham | 4:20.00 |
| 4 | 2 | Ashton HUNTER | 9 | Deepings | 4:13.14 |
| 5 | 3 | James HUCKLE | 10 | Lincoln Vulc | 4:00.00 |
| Heat Number - 2 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 4 | Oscar DURANT | 11 | Grantham | 3:50.00 |
| 2 | 6 | Matthew LONGMAN | 15 | Loughborough | 3:10.00 |
| 3 | 9 | Jacob SOWDEN | 15 | Lincoln Vulc | 2:46.95 |
| 4 | 12 | Owen HATHWAY | 15 | Grantham | 2:20.74 |
| 5 | 11 | Jacob BRIERS | 14 | Deepings | 2:39.28 |
| 6 | 7 | Zach HOPKINSON | 13 | Grantham | 3:05.71 |
| 7 | 5 | Adrian ELERTS | 12 | Grantham | 3:39.58 |