EVENT 205 Mixed 12 Yrs/Under 25m Backstroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Timothy PENNOCK | 8 | Grantham | |
| 4 | 2 | Beatrix ELLERINGTON | 8 | Grantham | |
| 5 | 3 | Maja BALL | 10 | Grantham | |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 4 | Evelyn CHARITY | 10 | Grantham | |
| 3 | 5 | Jia CHEN-REES | 9 | Grantham | |
| 4 | 6 | Ariana HANTON | 8 | Grantham | |
| 5 | 7 | Cleo HARRIS | 8 | Grantham | |
| 6 | 8 | Holly PEARSON | 10 | Grantham | |
| 7 | 9 | Oscar BEMBRIDGE | 10 | Grantham | |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 11 | Matilda HARPER | 10 | Grantham | |
| 2 | 13 | Jack CHAMBERS | 9 | Grantham | |
| 3 | 15 | Harry BIBBY | 9 | Grantham | |
| 4 | 17 | Margot ASSENZA | 9 | Grantham | 30.00 |
| 5 | 16 | Neel NAIR | 10 | Grantham | |
| 6 | 14 | Charlie BLACKSHAW | 10 | Grantham | |
| 7 | 12 | George SPENCER | 9 | Grantham | |
| 8 | 10 | Gilbert NICHOLLS | 9 | Grantham | |