EVENT 13 Girl Open 100m Breaststroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 2 | Annabelle JAY | 10 | Grantham | 2:45.00 |
| 4 | 3 | Connie PITTS | 10 | Lincoln Vulc | 2:45.00 |
| 5 | 4 | Molly CRAUGHAN | 10 | Lincoln Vulc | 2:45.00 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 5 | Florence HENDERSON | 9 | Lincoln Vulc | 2:40.00 |
| 2 | 6 | Indra DEAVES | 11 | Grantham | 2:38.23 |
| 3 | 7 | Emma AFFLECK | 10 | Deepings | 2:33.19 |
| 4 | 8 | Floria PERRATON- WILLI | 10 | Grantham | 2:30.00 |
| 5 | 9 | Emily HUNT | 12 | Lincoln Vulc | 2:30.00 |
| 6 | 10 | Annabella WALKER | 11 | Lincoln Vulc | 2:24.00 |
| 7 | 11 | Lucy JENKINSON | 10 | Deepings | 2:20.40 |
| 8 | 12 | Clea TREHARNE | 10 | Deepings | 2:20.00 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 13 | Lottie Ava FLATTERS | 9 | Deepings | 2:20.00 |
| 2 | 14 | Ava MACKFALL | 11 | Lincoln Vulc | 2:20.00 |
| 3 | 15 | Emily TALKES | 10 | Lincoln Vulc | 2:16.51 |
| 4 | 16 | Jessica WHITFIELD | 12 | Grantham | 2:13.00 |
| 5 | 17 | Iris FRENCH | 11 | Lincoln Vulc | 2:10.95 |
| 6 | 18 | Lucy ABBOTT | 10 | Grantham | 2:10.00 |
| 7 | 19 | Elizabeth ( Lizzie) BO | 14 | Grantham | 2:10.00 |
| 8 | 20 | Katherine FLETCHER | 9 | Loughborough | 2:09.31 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 21 | Francesca BACCO | 12 | Loughborough | 2:04.48 |
| 2 | 22 | Olivia KING | 10 | Deepings | 2:03.60 |
| 3 | 23 | Chelsea TODD | 12 | Lincoln Vulc | 2:01.02 |
| 4 | 24 | Sarah VICKERS | 11 | Loughborough | 2:00.46 |
| 5 | 25 | Lily-May CRANE | 11 | Grantham | 1:58.31 |
| 6 | 26 | Emiliyana KOKINOVA | 12 | Louth | 1:56.20 |
| 7 | 27 | Orlaith STANLEY | 13 | Grantham | 1:55.78 |
| 8 | 28 | Ellie POULTON-BURBANK | 10 | Loughborough | 1:55.25 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 29 | Ava RHODES | 13 | Louth | 1:55.18 |
| 2 | 30 | Matilda DON | 11 | Loughborough | 1:55.00 |
| 3 | 31 | Ellena HOWITT | 10 | Grantham | 1:55.00 |
| 4 | 32 | Lucy TAYLOR | 13 | Deepings | 1:55.00 |
| 5 | 33 | Amy TAYLOR | 10 | Grantham | 1:55.00 |
| 6 | 34 | Amber DUFFIELD | 12 | Louth | 1:54.80 |
| 7 | 35 | Lexie SHEWAN | 11 | Grantham | 1:54.00 |
| 8 | 36 | Sophie FOSTER | 11 | Louth | 1:52.80 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 37 | Eva KOURSIS | 11 | Loughborough | 1:52.12 |
| 2 | 38 | Harriet MCCORMACK | 12 | Grantham | 1:51.92 |
| 3 | 39 | Charlotte GILL | 13 | Grantham | 1:51.82 |
| 4 | 40 | Summer PARKER | 12 | Lincoln Vulc | 1:51.47 |
| 5 | 41 | Suzanna BURKE | 10 | Louth | 1:51.06 |
| 6 | 42 | Isabella REYNOLDS | 11 | Deepings | 1:49.60 |
| 7 | 43 | Freya JOHNSTON | 14 | Lincoln Vulc | 1:48.96 |
| 8 | 44 | Hannah TAYLOR | 11 | Louth | 1:48.50 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 45 | Georgia MOORE | 11 | Grantham | 1:45.78 |
| 2 | 46 | Marcelina DEBICKA | 14 | Grantham | 1:45.75 |
| 3 | 47 | Elysia SMITH | 12 | Louth | 1:45.31 |
| 4 | 48 | Lea HILAROWICZ | 13 | Lincoln Vulc | 1:42.90 |
| 5 | 49 | Grace HOWITT | 13 | Grantham | 1:42.55 |
| 6 | 50 | Cora FARLEY | 13 | Grantham | 1:42.15 |
| 7 | 51 | Karolina PARKINSON | 11 | Lincoln Vulc | 1:40.72 |
| 8 | 52 | Emilie WEBB | 12 | Grantham | 1:40.04 |
| Heat Number - 8 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 53 | Maisie MATTHEWS | 11 | Louth | 1:38.59 |
| 2 | 54 | Ella BLACKBOURN | 13 | Lincoln Vulc | 1:37.80 |
| 3 | 55 | Elena ALDENHOFF-KELLY | 13 | Grantham | 1:36.19 |
| 4 | 56 | Lucy CARTER | 13 | Louth | 1:35.50 |
| 5 | 57 | Poppy PRICE | 11 | Louth | 1:34.80 |
| 6 | 58 | Eliza BARTON | 17 | Louth | 1:34.14 |
| 7 | 59 | Megan LAMB | 12 | Lincoln Vulc | 1:33.74 |
| 8 | 60 | Isla GRAY | 12 | Grantham | 1:33.55 |
| Heat Number - 9 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 61 | Rianna ABBOTT | 14 | Grantham | 1:31.91 |
| 2 | 62 | Madison LAMB | 15 | Lincoln Vulc | 1:31.83 |
| 3 | 63 | Rosie HICKS | 15 | Lincoln Vulc | 1:30.52 |
| 4 | 64 | Sophie WARD | 12 | Grantham | 1:30.48 |
| 5 | 65 | Skye HOLMES | 12 | Louth | 1:29.60 |
| 6 | 66 | Olivia SPENCER | 15 | Lincoln Vulc | 1:28.30 |
| 7 | 67 | Evie LILLEY | 12 | Lincoln Vulc | 1:27.85 |
| 8 | 69 | Ruby WARING | 16 | Louth | 1:27.29 |
| Heat Number - 10 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 71 | Megan BROWN | 12 | Grantham | 1:25.78 |
| 2 | 74 | Katie ATTER | 17 | Lincoln Vulc | 1:23.14 |
| 3 | 76 | Grace TURNER | 14 | Grantham | 1:21.84 |
| 4 | 78 | Chloe HOPKINSON | 17 | Grantham | 1:15.94 |
| 5 | 77 | Matilda HERRIES | 14 | Loughborough | 1:21.43 |
| 6 | 75 | Laura JEANES | 17 | Louth | 1:22.90 |
| 7 | 72 | Evie TURNER | 16 | Grantham | 1:24.34 |
| 8 | 70 | Grace TWILTON | 14 | Lincoln Vulc | 1:26.16 |