EVENT 528 Women 12 /Under 200m Breaststroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Esmie Haines | 10 | Northampton | 4:26.12 |
| 4 | 3 | Bhavi-Monisha Gajjala | 11 | Corby | 4:16.20 |
| 5 | 2 | O Zaworska-Benedyka | 11 | Corby | 4:19.20 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 4 | Zara Musukuma | 11 | Daventry | 4:09.45 |
| 2 | 6 | Alice Rowbotham | 12 | Kettering | 3:56.94 |
| 3 | 8 | Lilly Kowal | 12 | Wellingboro | 3:47.44 |
| 4 | 10 | Alice Bolton | 12 | Wellingboro | 3:38.92 |
| 5 | 9 | Saxon Swann | 12 | Corby | 3:41.30 |
| 6 | 7 | Chloe Perkins | 12 | Kettering | 3:50.54 |
| 7 | 5 | Megan James | 10 | Wellingboro | 3:58.59 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 12 | Isobelle Frow | 12 | Corby | 3:35.80 |
| 2 | 14 | Esmee Browne | 12 | Rushden | 3:34.80 |
| 3 | 16 | Teagan Payne | 12 | Northampton | 3:30.03 |
| 4 | 18 | Kennedy McHugh | 12 | Rushden | 3:20.77 |
| 5 | 17 | Sofia Reedha | 12 | Corby | 3:23.92 |
| 6 | 15 | Islay-Mae Underwood | 12 | Kettering | 3:31.66 |
| 7 | 13 | Neve Booker | 11 | Wellingboro | 3:35.22 |
| 8 | 11 | Imogen Langley | 12 | Rushden | 3:37.00 |