EVENT 402 Girls Open 100m Backstroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | EVE O'DONNELL | 10 | DerbyPhoenix | |
| 2 | 3 | TILLIE ROBINSON | 9 | Chesterfield | |
| 3 | 5 | JAMELIA MANSELL | 10 | Co Sheffield | 2:08.80 |
| 4 | 7 | EMILY BELL | 9 | Co Sheffield | 2:01.70 |
| 5 | 6 | EVIE CASEY | 11 | Co Sheffield | 2:02.01 |
| 6 | 4 | SYDNEY WHITE | 11 | Buxton | |
| 7 | 2 | AMANDA ILJINA-MOHAMMAD | 13 | DerbyPhoenix | |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 9 | MADDISON EATON-BROOKES | 9 | Hucknall | 2:00.00 |
| 2 | 11 | ANISSIA IOANA TILEA | 9 | Co Sheffield | 1:55.01 |
| 3 | 13 | ZARA JONES | 9 | Co Sheffield | 1:52.50 |
| 4 | 15 | MARNIE WORTHINGTON | 9 | Sherwood | 1:50.00 |
| 5 | 14 | CHARLOTTE ELAM | 11 | Dronfield | 1:51.11 |
| 6 | 12 | EVA ROLFE | 11 | Eckington | 1:54.60 |
| 7 | 10 | EVA BELL | 9 | Co Sheffield | 1:56.56 |
| 8 | 8 | ERIN WILLIAMS | 13 | Eckington | 2:00.00 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 17 | EMILY BUCZKO | 12 | Sherwood | 1:47.31 |
| 2 | 19 | EMILY GOODACRE | 11 | Retford | 1:42.07 |
| 3 | 21 | BRONTE EASEY | 10 | Retford | 1:40.52 |
| 4 | 23 | AMELIA HINCHLIFFE | 11 | Chesterfield | 1:37.13 |
| 5 | 22 | MOLLY BOAM | 13 | Buxton | 1:40.00 |
| 6 | 20 | ABBIE CHAPMAN-HALE | 13 | Sherwood | 1:41.08 |
| 7 | 18 | SEREN MASON | 9 | Hucknall | 1:44.50 |
| 8 | 16 | SOFIA SLOBODYUK | 13 | Swadlincote | 1:48.55 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 25 | ISLA WORTHINGTON | 11 | Sherwood | 1:35.00 |
| 2 | 27 | HARRIET BAGSHAW | 11 | Buxton | 1:32.50 |
| 3 | 29 | ESMAE IRONS | 11 | Sherwood | 1:31.70 |
| 4 | 31 | JESSICA LEE | 12 | Dronfield | 1:30.00 |
| 5 | 30 | CHARLOTTE BROWNLESS | 11 | Lincoln TSA | 1:30.09 |
| 6 | 28 | AMELIA SHEIL | 11 | Derby Excel | 1:32.30 |
| 7 | 26 | MILLIE FLAXMAN | 13 | Co Sheffield | 1:32.80 |
| 8 | 24 | CONSTANCE BRINKWORTH | 10 | Derby Excel | 1:36.40 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 33 | ZOE PARSONS | 14 | Lincoln TSA | 1:29.55 |
| 2 | 35 | HOLLY HUNTER | 12 | Chesterfield | 1:29.03 |
| 3 | 37 | CHRISTABELLA TURNER | 14 | Eckington | 1:28.50 |
| 4 | 39 | MEGAN CRUNKHORN | 12 | Co Sheffield | 1:25.10 |
| 5 | 38 | EVA WILLIAMS | 12 | Eckington | 1:27.50 |
| 6 | 36 | ISLA PULVERTAFT | 10 | Buxton | 1:28.60 |
| 7 | 34 | LUCY WALL | 11 | Buxton | 1:29.10 |
| 8 | 32 | MOLLY BUCKLEY | 11 | Co Sheffield | 1:29.66 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 41 | ELIZABETH MARTINDALE | 11 | Sherwood | 1:24.00 |
| 2 | 43 | RUBY-GRACE GREGORY | 14 | Sherwood | 1:23.52 |
| 3 | 45 | SOPHIA LICHFIELD | 15 | Chesterfield | 1:21.44 |
| 4 | 47 | ISABELLE BUNTING | 12 | Sherwood | 1:20.88 |
| 5 | 46 | OLIVIA LEE | 12 | Derby Excel | 1:21.20 |
| 6 | 44 | ANNABEL BAGSHAW | 13 | Buxton | 1:21.50 |
| 7 | 42 | EMILY BATES | 15 | Chesterfield | 1:23.60 |
| 8 | 40 | ESMEE DOWNES | 13 | Derby Excel | 1:24.80 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 49 | OLIVIA CAWAR | 14 | Sherwood | 1:20.44 |
| 2 | 51 | LUCY REDMOND | 13 | Chesterfield | 1:20.17 |
| 3 | 53 | LILLIE HARRIS | 15 | Sherwood | 1:20.06 |
| 4 | 55 | ISLA CRAFT | 12 | Swadlincote | 1:19.50 |
| 5 | 54 | HANNAH O'BRIAN | 16 | Swadlincote | 1:20.04 |
| 6 | 52 | SCARLETT HOWE | 12 | DerbyPhoenix | 1:20.07 |
| 7 | 50 | ALISHA CAMERON | 13 | Co Sheffield | 1:20.42 |
| 8 | 48 | SOPHIA LEWIS | 15 | Derby Excel | 1:20.53 |
| Heat Number - 8 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 57 | ALANA SWIFT | 14 | Eckington | 1:18.37 |
| 2 | 59 | POPPY IRELAND | 13 | Sherwood | 1:15.94 |
| 3 | 61 | JESSICA LINDRIDGE | 18 | Chesterfield | 1:13.96 |
| 4 | 63 | KT TAYLOR | 17 | Chesterfield | 1:08.88 |
| 5 | 62 | HEBE SPOONER | 14 | Dronfield | 1:12.60 |
| 6 | 60 | LIBBY COOPER | 13 | Sherwood | 1:14.60 |
| 7 | 58 | AMELIE RATLIFF | 12 | Derby Excel | 1:18.18 |
| 8 | 56 | JESSICA WASS | 14 | Derby Excel | 1:19.30 |