EVENT 209 Female 10/12 Yrs 100m Backstroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 2 | Eliza Groom | 11 | Corby | 1:56.04 |
| 4 | 4 | Lily Muir | 10 | Rushden | 1:54.40 |
| 5 | 3 | Lilly Knipes | 11 | Northampton | 1:55.00 |
| 6 | 1 | Lyla Hayes | 10 | Corby | 1:56.08 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 6 | Maisie Toseland | 11 | Corby | 1:53.70 |
| 2 | 8 | Erin Grace Jennings | 11 | Daventry | 1:52.50 |
| 3 | 10 | Sofia Williams | 10 | Corby | 1:51.50 |
| 4 | 12 | Daisy-Raie Weekes | 11 | Northampton | 1:48.94 |
| 5 | 11 | Summer Lancefield | 10 | Northampton | 1:49.60 |
| 6 | 9 | Jessica Blenkhorn | 11 | Wellingboro | 1:52.10 |
| 7 | 7 | Sophie Emma Risdale | 11 | Rushden | 1:52.54 |
| 8 | 5 | Ella Legg | 11 | Wellingboro | 1:53.80 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 14 | Chloe Richardson | 11 | Northampton | 1:46.50 |
| 2 | 16 | Sophie Walgate | 11 | Northampton | 1:44.30 |
| 3 | 18 | Catalina Sava | 11 | Corby | 1:39.70 |
| 4 | 20 | Elsie Bailey | 12 | Kettering | 1:38.80 |
| 5 | 19 | Zara Upshall | 12 | Wellingboro | 1:39.30 |
| 6 | 17 | Isabella Horton | 11 | Kettering | 1:43.70 |
| 7 | 15 | Ana Cucoranu | 11 | Corby | 1:45.00 |
| 8 | 13 | Rose Cooper | 10 | Wellingboro | 1:48.10 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 24 | Isabella Gerrett | 12 | Rushden | 1:36.55 |
| 2 | 30 | Ren Wood | 12 | Corby | 1:32.40 |
| 3 | 36 | Leah Whitehead | 12 | Northampton | 1:29.60 |
| 4 | 42 | Milly Webb | 12 | Northampton | 1:22.70 |
| 5 | 39 | Addyson Hicks | 12 | Corby | 1:26.80 |
| 6 | 33 | Annie Callaghan | 12 | Corby | 1:30.30 |
| 7 | 27 | Maria Volosciuc | 12 | Daventry | 1:34.30 |
| 8 | 21 | Isabella Hardinges | 12 | Wellingboro | 1:37.50 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 25 | Ayla Madden | 12 | Northampton | 1:36.20 |
| 2 | 31 | Lara Cooper | 12 | Northampton | 1:32.10 |
| 3 | 37 | A Ursache | 12 | Kettering | 1:28.80 |
| 4 | 43 | Sophie Rees | 11 | Northampton | 1:22.20 |
| 5 | 40 | Daria Bielawski | 12 | Northampton | 1:24.30 |
| 6 | 34 | Olivia Fern | 12 | Northampton | 1:30.00 |
| 7 | 28 | Isabelle Csibi | 12 | Rushden | 1:32.90 |
| 8 | 22 | A Westhead-Newell | 12 | Daventry | 1:37.40 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 26 | Annabelle Lucas | 11 | Northampton | 1:34.60 |
| 2 | 32 | Savannah Koriya | 11 | Northampton | 1:31.20 |
| 3 | 38 | Sophie Quennell | 12 | Northampton | 1:28.00 |
| 4 | 44 | Amber Muir | 12 | Rushden | 1:21.10 |
| 5 | 41 | Wing Yiu Cheung | 12 | Northampton | 1:23.30 |
| 6 | 35 | Jessica Kemp | 12 | Wellingboro | 1:29.70 |
| 7 | 29 | Evie Lewis-Cox | 12 | Nene Valley | 1:32.60 |
| 8 | 23 | Grace Balneaves | 11 | Northampton | 1:37.30 |