| Heat Number - 1 | |||||
| Lane | Comp.No. | Name | A.G. | Club | Time |
| 1 | 1 | Deepings SC | Deepings | 5:24.00 | |
| 2 | 3 | Lincoln Vulcans SC | Lincoln Vulc | 4:57.60 | |
| 3 | 5 | Grantham SC | Grantham | 4:35.00 | |
| 4 | 7 | Louth Dolphins SC | Louth | 4:32.99 | |
| 5 | 6 | City of Linc Pentaqua | Co Lincoln P | 4:35.00 | |
| 6 | 4 | South Lincs Competitiv | South Lincs | 4:35.90 | |
| 7 | 2 | Gainsborough Dolphins | Gainsborough | 5:05.19 | |