EVENT 303 Mixed 12 Yrs/Under 25m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Sofia ASHLEY | 8 | Grantham | |
| 2 | 2 | Holly PEARSON | 10 | Grantham | |
| 3 | 3 | Neel NAIR | 10 | Grantham | |
| 4 | 4 | Evelyn CHARITY | 10 | Grantham | |
| 5 | 5 | Oscar BEMBRIDGE | 10 | Grantham | |
| 6 | 6 | Harry BIBBY | 9 | Grantham | |
| 7 | 7 | Jia CHEN-REES | 9 | Grantham | |
| 8 | 8 | Gilbert NICHOLLS | 9 | Grantham | |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 10 | Jack CHAMBERS | 9 | Grantham | |
| 2 | 12 | Cleo HARRIS | 8 | Grantham | |
| 3 | 14 | Alfie JAMES | 10 | Grantham | |
| 4 | 16 | Charlie BLACKSHAW | 10 | Grantham | |
| 5 | 15 | Tabitha GODDARD | 9 | Grantham | |
| 6 | 13 | Timothy PENNOCK | 8 | Grantham | |
| 7 | 11 | George SPENCER | 9 | Grantham | |
| 8 | 9 | Maja BALL | 10 | Grantham | |