| Place | Name | AaD | Club | Time | 50 | |||||
| 1. | Henry DOLAN | 11 | Grantham | 1:38.48 | 47.18 | |||||
| 2. | Bertie ROSE | 11 | Lincoln Vulc | 1:39.94 | 48.03 | |||||
| 3. | Oscar WOOD | 11 | Lincoln Vulc | 1:43.22 | 49.63 | |||||
| 4. | Dan PALMER | 11 | Co Lincoln P | 1:44.06 | 50.14 | |||||
| 5. | Toby EDMONDSON | 10 | Grantham | 1:46.28 | 52.38 | |||||
| 6. | Kai HILAROWICZ | 11 | Co Lincoln P | 1:49.85 | 53.74 | |||||
| 7. | Derrin BROCKLEBANK | 10 | Grantham | 1:51.88 | 51.51 | |||||
| Benjamin GODDARD | 11 | Grantham | DQ SL 1L |