| Final | |||||
| Lane | Comp.No. | Name | YoB | Club | Time |
| 1 | 1 | Luca HALLAM | 12 | Grantham SC | 52.16 |
| 2 | 2 | Oliver WILKINSON | 12 | Lincoln Vulcans SC | 49.11 |
| 3 | 3 | Francesco MONACO | 12 | South Lincs Competitive SC | 48.27 |
| 4 | 4 | Samuel NICHOLS | 12 | Grantham SC | 45.11 |
| 5 | 5 | Cole COOPER | 12 | City of Linc Pentaqua SC | 46.35 |
| 6 | 6 | Oliver CLARKE | 12 | Deepings SC | 48.72 |
| 7 | 7 | Jonathan GBYLICZEK | 12 | Lincoln Vulcans SC | 50.45 |
| 8 | 8 | Arlo HAMER | 12 | City of Linc Pentaqua SC | 52.32 |