EVENT 502 Female 10 /Over 200m Breaststroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Ella Bele KHAMA | 10 | Grantham | 3:59.77 |
| 4 | 3 | Madeleine SEAGROATT | 11 | Louth | 3:55.39 |
| 5 | 2 | Amy FOSTER | 11 | Louth | 3:56.19 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 6 | Miley RICHARDSON | 11 | Co Lincoln P | 3:45.88 |
| 3 | 8 | Lucy JENKINSON | 12 | Deepings | 3:41.42 |
| 4 | 10 | Ava MALLOWS | 12 | Louth | 3:39.57 |
| 5 | 9 | Zoe JONES | 11 | Louth | 3:39.84 |
| 6 | 7 | Lucy ABBOTT | 12 | Grantham | 3:42.79 |
| 7 | 4 | Caitlynn EDMEADES | 11 | Deepings | 3:53.69 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 12 | Annie WEBSTER | 12 | Grantham | 3:37.99 |
| 2 | 14 | Remi BERRY | 12 | Co Lincoln P | 3:35.55 |
| 3 | 16 | Florence HENDERSON | 11 | Lincoln Vulc | 3:32.55 |
| 4 | 18 | Eleanor BIRINY | 13 | Lincoln Vulc | 3:26.83 |
| 5 | 17 | Molly CRAUGHAN | 12 | Lincoln Vulc | 3:29.34 |
| 6 | 15 | Freya SHARPE | 12 | Lincoln Vulc | 3:32.81 |
| 7 | 13 | Isla LORMOR | 12 | Gainsborough | 3:36.51 |
| 8 | 11 | Robyn STEEL | 11 | Co Lincoln P | 3:39.15 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 20 | Annabelle JAY | 13 | Grantham | 3:22.59 |
| 2 | 22 | Sophie FOSTER | 13 | Louth | 3:21.50 |
| 3 | 24 | Suzanna BURKE | 13 | Louth | 3:17.24 |
| 4 | 26 | Jessica - Rose DAVISON | 15 | Grantham | 3:16.33 |
| 5 | 25 | Elysia SMITH | 14 | Louth | 3:16.86 |
| 6 | 23 | Erin ARCHER | 13 | Co Lincoln P | 3:17.72 |
| 7 | 21 | Angelina BALLARD | 13 | Co Lincoln P | 3:22.47 |
| 8 | 19 | Ellena HOWITT | 13 | Grantham | 3:26.25 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 28 | Lucy LOVETT | 17 | Co Lincoln P | 3:14.43 |
| 2 | 30 | Amelie MILLNS | 17 | Co Lincoln P | 3:12.61 |
| 3 | 32 | Amy TAYLOR | 13 | Grantham | 3:11.90 |
| 4 | 35 | Amy PALMER | 13 | Co Lincoln P | 3:09.54 |
| 5 | 34 | Evelyn RUSSELL | 14 | Lincoln Vulc | 3:11.03 |
| 6 | 31 | Harriet MCCORMACK | 15 | Grantham | 3:12.24 |
| 7 | 29 | Emily TALKES | 12 | Lincoln Vulc | 3:13.06 |
| 8 | 27 | Lucy WILLATTS | 13 | Grantham | 3:16.28 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 37 | Karolina PARKINSON | 14 | Lincoln Vulc | 3:08.56 |
| 2 | 39 | Jessica HERRIOTT | 16 | South Lincs | 3:07.05 |
| 3 | 41 | Megan LAMB | 15 | Lincoln Vulc | 3:06.02 |
| 4 | 44 | Isobel ALLSOP | 14 | Grantham | 3:03.13 |
| 5 | 42 | Skye HOLMES | 14 | Louth | 3:05.81 |
| 6 | 40 | Isabella WALTER | 15 | Louth | 3:06.62 |
| 7 | 38 | Charlotte BEMROSE | 16 | Louth | 3:07.65 |
| 8 | 36 | Ella BLACKBOURN | 16 | Lincoln Vulc | 3:09.35 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 46 | Daniela BRINGEMAN | 17 | South Lincs | 3:02.00 |
| 2 | 48 | Maisie MATTHEWS | 13 | Louth | 2:59.35 |
| 3 | 50 | Sophie WARD | 15 | Grantham | 2:58.46 |
| 4 | 52 | Helena FIELD | 15 | Louth | 2:57.11 |
| 5 | 51 | Megan BROWN | 15 | Grantham | 2:57.72 |
| 6 | 49 | Isla GRAY | 14 | Grantham | 2:59.32 |
| 7 | 47 | Grace MACDONALD | 15 | Grantham | 3:00.20 |
| 8 | 45 | Liv SPENCER | 18 | Lincoln Vulc | 3:02.57 |
| Heat Number - 8 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 54 | Casey CLEAVER | 18 | Co Lincoln P | 2:55.93 |
| 2 | 56 | Tiegan GRAY | 17 | Gainsborough | 2:54.18 |
| 3 | 58 | Sigourney BOLTON | 15 | South Lincs | 2:47.60 |
| 4 | 60 | Olivia ANSTEY | 16 | Louth | 2:40.89 |
| 5 | 59 | Ellie PARKES | 18 | Co Lincoln P | 2:45.40 |
| 6 | 57 | Alice-Mae DOWNS | 15 | Co Lincoln P | 2:50.60 |
| 7 | 55 | Grace TURNER | 17 | Grantham | 2:54.96 |
| 8 | 53 | Francesca HALLAM-STOTT | 17 | Grantham | 2:57.03 |