EVENT 404 Womens Open 100m Breaststroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 3 | 2 | Scarlett HUMPHREY | 12 | SB12 | Northampton | 1:52.40 |
| 4 | 4 | Elle HUMPHRIES | 15 | | Northgate | 1:17.91 |
| 5 | 3 | Maisie SUMMERS-NEWTON | 15 | SB6 | Northampton | 1:33.70 |
| 6 | 1 | Eliza HUMPHREY | 12 | SB12 | Northampton | 2:03.75 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 6 | Madeleine BARNES | 15 | | Grantham | 1:17.80 |
| 2 | 8 | Katie HAWKINS | 15 | | Royal Wolv | 1:17.70 |
| 3 | 10 | Megan HANSON | 15 | | Kimberley | 1:17.60 |
| 4 | 12 | Bethany SMITH | 12 | | Royal Wolv | 1:17.40 |
| 5 | 11 | Alexandra BARTLEY | 15 | | Boldmere | 1:17.60 |
| 6 | 9 | Isabella SHERIDAN | 15 | | Radford | 1:17.60 |
| 7 | 7 | Lara STEEL | 15 | | Braunstone | 1:17.73 |
| 8 | 5 | Poppy SPANNER | 14 | | Lichfield | 1:17.86 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 14 | Lucy FAIRBANKS | 19 | | Shrewsbury | 1:17.30 |
| 2 | 16 | Clarice ELLINGWORTH | 15 | | Melton M'bry | 1:17.18 |
| 3 | 18 | Michaella GLENISTER | 15 | | Co Leicester | 1:16.80 |
| 4 | 20 | Teigan PARKER | 17 | | Team Mercia | 1:16.41 |
| 5 | 19 | Mia LARKE | 16 | | Loughborough | 1:16.70 |
| 6 | 17 | Maddison NUTTALL | 13 | | Team Mercia | 1:17.04 |
| 7 | 15 | Taylor O'ROURKE | 14 | | Northampton | 1:17.30 |
| 8 | 13 | Faraday SAXTON | 14 | | Nova Cent'n | 1:17.30 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 22 | Sophie BAKER | 13 | | Chesterfield | 1:16.18 |
| 2 | 24 | Maria-Magdalena VASSIL | 16 | | Co Derby | 1:16.12 |
| 3 | 26 | Hollie-Mae DOVE | 14 | | Nova Cent'n | 1:15.20 |
| 4 | 28 | Bethan THOMAS | 16 | | Derventio | 1:14.93 |
| 5 | 27 | Tia KEIGHTLEY | 13 | | Co Leicester | 1:15.18 |
| 6 | 25 | Kelsie GEARY | 16 | | Derventio | 1:15.80 |
| 7 | 23 | Freya COLE | 16 | | Rushden | 1:16.18 |
| 8 | 21 | Merewyn JONES | 13 | | Nova Cent'n | 1:16.40 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 32 | Cira FLETCHER | 19 | | Nova Cent'n | 1:14.40 |
| 2 | 38 | Rebecca WINN | 17 | | Co Coventry | 1:13.40 |
| 3 | 44 | Carys O'REILLY | 14 | | Co Leicester | 1:11.70 |
| 4 | 50 | Angharad EVANS | 14 | | Ellesmere Co | 1:08.00 |
| 5 | 47 | Ailsa MCDONALD | 16 | | Northampton | 1:11.09 |
| 6 | 41 | Michaela STEPHEN | 15 | | Co Derby | 1:12.20 |
| 7 | 35 | Holly MCGARVA | 16 | | Radford | 1:13.90 |
| 8 | 29 | Grace WILSON | 16 | | Lincoln Vulc | 1:14.81 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 33 | Elinor BIRD | 18 | | Strat Sharks | 1:14.01 |
| 2 | 39 | Emily GORDON | 21 | | Boldmere | 1:12.90 |
| 3 | 45 | Laura HAWKINS | 17 | | Royal Wolv | 1:11.70 |
| 4 | 51 | Grace GILROY | 20 | | Loughboro Un | 1:08.00 |
| 5 | 48 | Courtney SMITH | 17 | | Co Leicester | 1:10.72 |
| 6 | 42 | Rebecca TWARDOCHLEB | 18 | | Newcastle St | 1:12.09 |
| 7 | 36 | Charly NEILSON | 18 | | Nova Cent'n | 1:13.80 |
| 8 | 30 | Kate DURNO | 15 | | Northampton | 1:14.69 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 34 | Chloe BATES | 18 | | Derventio | 1:14.00 |
| 2 | 40 | Hannah COX | 22 | | Long Eaton | 1:12.80 |
| 3 | 46 | Maia HALL | 15 | | Ellesmere Co | 1:11.20 |
| 4 | 52 | Jocelyn ULYETT | 22 | | Loughboro Un | 1:05.30 |
| 5 | 49 | Megan MORRISON | 19 | | Loughboro Un | 1:08.10 |
| 6 | 43 | Bethany WALKER | 17 | | Co Lincoln P | 1:12.05 |
| 7 | 37 | Jessica GILLATT | 20 | | Retford | 1:13.70 |
| 8 | 31 | Olivia JAY | 15 | | Halesowen | 1:14.60 |