| Final | |||||
| Lane | Comp.No. | Name | YoB | Club | Time |
| 1 | 1 | Zach HOPKINSON | 09 | Grantham SC | 1:16.53 |
| 2 | 2 | Matteo MONACO | 09 | South Lincs Competitive SC | 1:13.74 |
| 3 | 3 | Frank LAMB | 09 | South Lincs Competitive SC | 1:12.85 |
| 4 | 4 | Jacob FISH | 09 | Grantham SC | 1:10.31 |
| 5 | 5 | James NICHOLS | 09 | Grantham SC | 1:10.33 |
| 6 | 6 | Layton ANNISON-SNOWDEN | 09 | Louth Dolphins SC | 1:13.39 |
| 7 | 7 | Oliver SHEPHERD | 09 | Deepings SC | 1:14.05 |
| 8 | 8 | Freddie TRAGNI | 09 | City of Linc Pentaqua SC | 1:20.20 |