EVENT 229 Women 10/12 Yrs 50m Breaststroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Esmie Haines | 10 | Northampton | 1:03.93 |
| 4 | 3 | Isabelle Pawlowski | 11 | Corby | 1:01.17 |
| 5 | 2 | Elizabeth Chisholm | 11 | Wellingboro | 1:03.59 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 5 | Mya Blair | 11 | Corby | 1:01.01 |
| 2 | 7 | Phillippa Cutmore | 11 | Corby | 57.31 |
| 3 | 9 | O Zaworska-Benedyka | 11 | Corby | 56.00 |
| 4 | 11 | A Thorpe-Williams | 11 | Northampton | 55.05 |
| 5 | 10 | Mea Moore | 10 | Corby | 55.50 |
| 6 | 8 | Isla Adams | 10 | Northampton | 57.20 |
| 7 | 6 | Carys Thomas | 11 | Nene Valley | 57.99 |
| 8 | 4 | Bowan Wainwright | 11 | Northampton | 1:01.10 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 15 | Jasmin Dodds | 11 | Wellingboro | 52.68 |
| 2 | 21 | Alice Rowbotham | 12 | Kettering | 50.93 |
| 3 | 27 | Neve Booker | 11 | Wellingboro | 47.49 |
| 4 | 33 | Kennedy McHugh | 12 | Rushden | 42.32 |
| 5 | 30 | Isobelle Frow | 12 | Corby | 46.40 |
| 6 | 24 | Saxon Swann | 12 | Corby | 48.64 |
| 7 | 18 | Beth Rebhan | 12 | Corby | 51.94 |
| 8 | 12 | Jessica Barrett | 11 | Kettering | 54.93 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 16 | Mackenzie Wainwright | 12 | Northampton | 52.06 |
| 2 | 22 | Georgina Beeby | 12 | Kettering | 50.84 |
| 3 | 28 | Kimberley Hayes | 12 | Kettering | 47.17 |
| 4 | 34 | Sofia Reedha | 12 | Corby | 41.58 |
| 5 | 31 | Chloe Perkins | 12 | Kettering | 45.96 |
| 6 | 25 | Imogen Langley | 12 | Rushden | 48.20 |
| 7 | 19 | Lexie Webb | 12 | Rushden | 51.71 |
| 8 | 13 | Megan James | 10 | Wellingboro | 53.82 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 17 | M Plakogianni | 12 | Kettering | 52.05 |
| 2 | 23 | Holly Coleman | 12 | Wellingboro | 50.24 |
| 3 | 29 | Esmee Browne | 12 | Rushden | 47.11 |
| 4 | 35 | Islay-Mae Underwood | 12 | Kettering | 41.49 |
| 5 | 32 | Teagan Payne | 12 | Northampton | 43.91 |
| 6 | 26 | Lilly Kowal | 12 | Wellingboro | 48.01 |
| 7 | 20 | Faye Martinot | 12 | Nene Valley | 51.38 |
| 8 | 14 | Safiyah Pawlyszyn | 11 | Wellingboro | 52.91 |