EVENT 332 Women 10/12 Yrs 100m Breaststroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 4 | O Zaworska-Benedyka | 11 | | Corby | 1:59.71 |
| 2 | 10 | Faye Martinot | 12 | | Nene Valley | 1:47.56 |
| 3 | 16 | Esmee Browne | 12 | | Rushden | 1:43.27 |
| 4 | 22 | Sofia Reedha | 12 | | Corby | 1:36.20 |
| 5 | 19 | Imogen Langley | 12 | | Rushden | 1:40.80 |
| 6 | 13 | Mackenzie Wainwright | 12 | | Northampton | 1:46.21 |
| 7 | 7 | Megan James | 10 | | Wellingboro | 1:54.09 |
| 8 | 1 | Rose Webb | 12 | SB6 | Northampton | 2:16.56 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 5 | A Thorpe-Williams | 11 | | Northampton | 1:57.82 |
| 2 | 11 | Georgina Beeby | 12 | | Kettering | 1:47.14 |
| 3 | 17 | Lilly Kowal | 12 | | Wellingboro | 1:42.71 |
| 4 | 23 | Islay-Mae Underwood | 12 | | Kettering | 1:35.67 |
| 5 | 20 | Isobelle Frow | 12 | | Corby | 1:38.66 |
| 6 | 14 | Chloe Perkins | 12 | | Kettering | 1:46.19 |
| 7 | 8 | Alice Rowbotham | 12 | | Kettering | 1:52.60 |
| 8 | 2 | Esmie Haines | 10 | | Northampton | 2:10.57 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 6 | Jasmin Dodds | 11 | | Wellingboro | 1:55.57 |
| 2 | 12 | Neve Booker | 11 | | Wellingboro | 1:46.48 |
| 3 | 18 | Alice Bolton | 12 | | Wellingboro | 1:42.57 |
| 4 | 24 | Kennedy McHugh | 12 | | Rushden | 1:34.51 |
| 5 | 21 | Teagan Payne | 12 | | Northampton | 1:36.50 |
| 6 | 15 | Saxon Swann | 12 | | Corby | 1:45.00 |
| 7 | 9 | Safiyah Pawlyszyn | 11 | | Wellingboro | 1:50.55 |
| 8 | 3 | Jessica Barrett | 11 | | Kettering | 2:01.81 |