EVENT 204 Womens Open 200m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 3 | 1 | Rebecca HOWELL | 13 | Basildon Ph | 2:34.80 |
| 4 | 3 | Erin LEE | 14 | Basildon Ph | 2:34.29 |
| 5 | 2 | Megan PYE | 14 | UEA Norwich | 2:34.69 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 2 | 11 | Lauren YOUNG | 13 | Hatfield | 2:31.47 |
| 3 | 17 | Madeleine CHAMBERS | 16 | St Felix Sch | 2:29.87 |
| 4 | 23 | Abbie LOW | 14 | Chelmsford | 2:24.50 |
| 5 | 20 | Millie EMMANS | 17 | Co Cambridge | 2:27.14 |
| 6 | 14 | Sara KALAWSKA | 13 | Hatfield | 2:30.53 |
| 7 | 8 | Hannah CURRELL | 17 | Hitchin | 2:32.21 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 6 | Tegan WOLLASTON | 17 | Cheshunt | 2:32.57 |
| 2 | 12 | Georgina CURTIS | 16 | Mid Beds | 2:31.31 |
| 3 | 18 | Lauren STOTT | 14 | Co St Albans | 2:29.50 |
| 4 | 24 | Shannon STOTT | 16 | Co St Albans | 2:18.10 |
| 5 | 21 | Amber SHINE | 16 | Hatfield | 2:26.26 |
| 6 | 15 | Lauren GRICE | 17 | Mid Beds | 2:30.10 |
| 7 | 9 | Millie WARD | 14 | Brentwood | 2:31.70 |
| 8 | 4 | Jessica FARROW | 16 | Hatfield | 2:33.49 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 7 | Lauren HARRISON | 15 | Co Peterboro | 2:32.50 |
| 2 | 13 | Katy CHAMBERS | 14 | St Felix Sch | 2:30.87 |
| 3 | 19 | Annabelle KITCHING | 14 | Chelmsford | 2:28.10 |
| 4 | 25 | Poppy RICHARDSON | 15 | Co Peterboro | 2:17.71 |
| 5 | 22 | Mia LEECH | 14 | Co Peterboro | 2:25.20 |
| 6 | 16 | Niamh PERRY | 14 | West Suffolk | 2:30.10 |
| 7 | 10 | Hannah MCNAUL | 16 | West Suffolk | 2:31.60 |
| 8 | 5 | Sophie PICKERING | 16 | teamipswich | 2:32.73 |