EVENT 305 Female 12 /Under 50m Breaststroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Grace WADE | 9 | Deepings | |
| 4 | 3 | A HATCHER BRENNAN | 9 | Deepings | 1:22.41 |
| 5 | 4 | Iona BREWSTER | 10 | Deepings | 1:13.98 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 7 | Evangeline KINNEAR | 10 | Grantham | 1:08.31 |
| 2 | 8 | Eva REDMILE | 9 | Lincoln Vulc | 1:07.29 |
| 3 | 9 | Annabel HILLSON | 9 | Grantham | 1:07.03 |
| 4 | 10 | Francesca MORGAN | 11 | Grantham | 1:06.96 |
| 5 | 11 | Olivia LEVERTON | 10 | Co Lincoln P | 1:06.67 |
| 6 | 12 | Ruby CLARK | 11 | Lincoln Vulc | 1:06.64 |
| 7 | 13 | Charlotte BATTYE | 11 | Lincoln Vulc | 1:04.39 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 14 | Ava MORGAN | 10 | Co Lincoln P | 1:03.99 |
| 2 | 17 | Amelie HUNT | 10 | Deepings | 1:01.96 |
| 3 | 18 | Millie MACKIE | 11 | Co Lincoln P | 1:01.73 |
| 4 | 19 | Abigail WORTHINGTON | 10 | Lincoln Vulc | 1:01.56 |
| 5 | 20 | Aoife HICKEY | 9 | Deepings | 1:01.38 |
| 6 | 21 | Bella HARLEY | 10 | Co Lincoln P | 1:01.31 |
| 7 | 22 | Merryn JOHNSON-ROOK | 11 | Lincoln Vulc | 1:00.79 |
| 8 | 23 | Florence HARPER | 11 | Grantham | 59.52 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 24 | Amelia BELL | 12 | Lincoln Vulc | 58.35 |
| 2 | 25 | Emily CLAYTON | 9 | Grantham | 58.18 |
| 3 | 26 | Olivia CHARITY | 12 | Grantham | 57.30 |
| 4 | 27 | Abigail TAYLOR | 10 | Grantham | 57.29 |
| 5 | 28 | Katie BEASTALL | 10 | Co Lincoln P | 57.11 |
| 6 | 29 | Hollie-Ann CROOK | 9 | Grantham | 56.90 |
| 7 | 30 | Elise HEMMINGS | 10 | Lincoln Vulc | 56.84 |
| 8 | 32 | Amaya MONTEALEGRE | 10 | Lincoln Vulc | 56.54 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 33 | Isla ROBINSON | 10 | Co Lincoln P | 56.00 |
| 2 | 34 | Madeline SURTEES | 11 | Grantham | 55.88 |
| 3 | 35 | Matilda MCDONNELL | 11 | Grantham | 55.48 |
| 4 | 36 | Evie SKILLINGTON | 12 | Lincoln Vulc | 55.16 |
| 5 | 38 | Evangeline CHRISPIN | 12 | Lincoln Vulc | 54.13 |
| 6 | 39 | Bethany WILKINSON | 12 | Lincoln Vulc | 53.78 |
| 7 | 42 | Isabella TRAGNI | 11 | Co Lincoln P | 53.40 |
| 8 | 43 | Catherine SINCLAIR | 11 | Co Lincoln P | 52.99 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 44 | Ava CUTTS | 12 | Co Lincoln P | 52.66 |
| 2 | 45 | Jessica WYTHE | 12 | Co Lincoln P | 52.54 |
| 3 | 46 | Connie PITTS | 12 | Lincoln Vulc | 52.20 |
| 4 | 47 | Poppy HATHWAY | 12 | Grantham | 52.16 |
| 5 | 48 | Arin ELVIDGE | 10 | Lincoln Vulc | 51.69 |
| 6 | 49 | Sophie OWEN | 12 | Lincoln Vulc | 51.45 |
| 7 | 51 | Juliette KIM | 9 | Grantham | 50.66 |
| 8 | 52 | Amy BARKER | 10 | Lincoln Vulc | 50.63 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 53 | Eden DYSON | 12 | Grantham | 50.31 |
| 2 | 54 | Alice MCMASTER | 12 | Lincoln Vulc | 50.12 |
| 3 | 55 | Ella Bele KHAMA | 10 | Grantham | 50.04 |
| 4 | 56 | Helena HAMILTON | 12 | Grantham | 49.91 |
| 5 | 57 | Annabel SHEPHERD | 11 | Deepings | 49.69 |
| 6 | 58 | Isabelle CLAYTON | 11 | Grantham | 49.36 |
| 7 | 59 | Octavia SHEARN | 11 | Grantham | 49.32 |
| 8 | 60 | Caitlynn EDMEADES | 10 | Deepings | 49.26 |
| Heat Number - 8 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 62 | Ella-Rose HUNTER | 11 | Lincoln Vulc | 48.84 |
| 2 | 63 | Millie EDWARDS | 11 | Deepings | 48.82 |
| 3 | 64 | Charlotte WELGEMOED | 12 | Co Lincoln P | 48.81 |
| 4 | 65 | Ava-Grace GREGORY | 12 | Grantham | 48.58 |
| 5 | 66 | Scarlett HART | 12 | Co Lincoln P | 48.02 |
| 6 | 67 | Connie MILLNS | 12 | Co Lincoln P | 47.60 |
| 7 | 68 | Charlotte JAY | 11 | Grantham | 46.65 |
| 8 | 69 | Florence HENDERSON | 11 | Lincoln Vulc | 46.49 |
| Heat Number - 9 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 70 | Angelina BALLARD | 12 | Co Lincoln P | 46.06 |
| 2 | 71 | Lucy ABBOTT | 12 | Grantham | 45.27 |
| 3 | 72 | Remi BERRY | 11 | Co Lincoln P | 44.74 |
| 4 | 73 | Lucy JENKINSON | 12 | Deepings | 44.49 |
| 5 | 74 | Evie NEWMAN | 11 | Lincoln Vulc | 44.13 |
| 6 | 76 | Robyn STEEL | 10 | Co Lincoln P | 43.97 |
| 7 | 77 | Miley RICHARDSON | 10 | Co Lincoln P | 43.81 |
| 8 | 78 | Sophie ALLISTON | 12 | Deepings | 43.80 |
| Heat Number - 10 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 80 | Imogen ROTHWELL | 12 | Co Lincoln P | 42.60 |
| 2 | 82 | Lucy WILLATTS | 12 | Grantham | 41.63 |
| 3 | 85 | Ellena HOWITT | 12 | Grantham | 41.07 |
| 4 | 87 | Amy TAYLOR | 12 | Grantham | 38.31 |
| 5 | 86 | Annabelle JAY | 12 | Grantham | 40.69 |
| 6 | 83 | Darcey WOOD | 12 | Grantham | 41.61 |
| 7 | 81 | Freya SHARPE | 11 | Lincoln Vulc | 41.67 |
| 8 | 79 | E LERESCHE HANDS | 12 | Grantham | 43.57 |