EVENT 305 Womens MC 50m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 0 | 2 | Melina Metaxa-Mariatou | 16 | S5 | Greece | 1:32.38 |
| 1 | 6 | Giulia Ghiretti | 21 | S5 | Italy | 52.65 |
| 2 | 10 | Mina Klausen | 18 | S7 | Norway | 49.50 |
| 3 | 14 | Grace Harvey | 17 | S7 | Hoddesdon | 47.00 |
| 4 | 18 | Sarah Louise Rung | 26 | S5 | Norway | 42.43 |
| 5 | 16 | E Martin-De-La-Torre | 17 | S6 | teamipswich | 43.30 |
| 6 | 12 | Brenda Tilk | 21 | S7 | Estonia | 48.44 |
| 7 | 8 | Sara Josefine Hanssen | 20 | S6 | Norway | 49.69 |
| 8 | 4 | Megan Atkinson | 15 | S6 | Peterlee | 55.88 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 0 | 3 | Suzanne Warren | 36 | S5 | teamipswich | 1:05.83 |
| 1 | 7 | Maisie Summers Newton | 13 | S6 | Wellingboro | 51.04 |
| 2 | 11 | Nicole Turner | 13 | S6 | Ireland | 49.43 |
| 3 | 15 | Tess Routliffe | 17 | S7 | Canada | 45.00 |
| 4 | 19 | Susannah Rodgers | 32 | S7 | Beckenham | 36.14 |
| 5 | 17 | Eleanor Robinson | 14 | S6 | Northampton | 42.79 |
| 6 | 13 | Thelma Bjornsdottir | 19 | S6 | Iceland | 47.69 |
| 7 | 9 | Megan Short | 17 | S7 | Satellite | 49.54 |
| 8 | 5 | Meri-Maari Makinen | 23 | S7 | Finland | 53.53 |
| 9 | 1 | Sophie Woodward | 11 | S3 | Nova Cent'n | 1:33.63 |