EVENT 204 Female 200m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Chloe TAYLOR | 10 | Middlesboro | 4:21.20 |
| 4 | 3 | Eva LONGLEY | 11 | Donc Dartes | 3:59.60 |
| 5 | 2 | Zoe FEATHER | 10 | Co Leeds | 4:10.00 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 5 | Sienna FAWCETT | 11 | Borocuda T | 3:50.00 |
| 1 | 7 | Grace O'HARA | 11 | Co Leeds | 3:34.64 |
| 2 | 9 | Jessica ROLLINGS | 12 | Co Leeds | 3:22.40 |
| 3 | 11 | Elizabeth BOND | 11 | Co Leeds | 3:10.90 |
| 4 | 13 | Amelie COTTERILL | 11 | Co Leeds | 3:08.48 |
| 5 | 12 | Lily VEEVERS | 12 | Co Leeds | 3:10.00 |
| 6 | 10 | Emily ENGLAND-HALL | 11 | Co Leeds | 3:13.00 |
| 7 | 8 | Amit MALTZ | 13 | Co Leeds | 3:29.44 |
| 8 | 6 | Evelyn ATKINSON | 10 | Co Leeds | 3:40.00 |
| 9 | 4 | Madeleine FLAHERTY | 10 | Co Leeds | 3:51.43 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 15 | Imogen PEEL | 15 | Borocuda T | 3:07.00 |
| 1 | 17 | Sophia GRAVILLE | 12 | Co Leeds | 3:00.00 |
| 2 | 19 | Darcey BLACKER | 15 | Co Leeds | 2:47.50 |
| 3 | 21 | Ella PROUD | 16 | Middlesboro | 2:37.90 |
| 4 | 23 | Ella MCDERMOTT | 15 | Co Leeds | 2:30.00 |
| 5 | 22 | Katie PINK | 16 | Middlesboro | 2:30.70 |
| 6 | 20 | Imogen HOLBROOK | 21 | York City | 2:45.40 |
| 7 | 18 | Emily MARRISON | 13 | Co Leeds | 2:57.40 |
| 8 | 16 | Addison CROPPER | 10 | Co Leeds | 3:03.80 |
| 9 | 14 | Ella JORDAN | 13 | Co Leeds | 3:07.10 |