EVENT 306 Womens MC 100m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 2 | 2 | Maya Brisco | 16 | S9 | Staines | 1:44.70 |
| 3 | 4 | Katie Crowhurst | 12 | S13 | Wycombe Dist | 1:37.36 |
| 4 | 6 | Charli Vines | 18 | S14 | Harrogate | 1:32.55 |
| 5 | 5 | Anya Falkus | 14 | S13 | Wisbech | 1:33.25 |
| 6 | 3 | Rebecca Franks | 19 | S9 | Gainsborough | 1:39.09 |
| 7 | 1 | Hollie Pinder | 14 | S9 | Adwick | 2:19.00 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 8 | Cara Smyth | 15 | S10 | Incas | 1:30.52 |
| 2 | 10 | Rebecca Lewis | 13 | S10 | RCT Squad | 1:28.94 |
| 3 | 12 | Bethan Eckley | 16 | S10 | Co Cardiff | 1:26.61 |
| 4 | 14 | Eleanor Bamber | 20 | S10 | Satellite | 1:22.10 |
| 5 | 13 | Coral Farrell | 15 | S10 | Warrington W | 1:24.60 |
| 6 | 11 | Hayley Milne | 17 | S8 | Grantham | 1:27.80 |
| 7 | 9 | Harriet Dickinson | 19 | S10 | Gloucester | 1:29.20 |
| 8 | 7 | Aliya Bacakoglu | 12 | S10 | Halifax | 1:30.83 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 16 | Zara Mullooly | 14 | S10 | Guildford Ct | 1:17.42 |
| 2 | 18 | Lily Macleod | 15 | S13 | Mt Kelly | 1:13.49 |
| 3 | 20 | Alice Tai | 17 | S10 | Bourmth Coll | 1:09.20 |
| 4 | 22 | Jessica-Jane Applegate | 20 | S14 | UEA Norwich | 1:07.11 |
| 5 | 21 | Louise Fiddes | 15 | S14 | Hatfield | 1:08.48 |
| 6 | 19 | Amy Marren | 18 | S9 | Romford Town | 1:11.32 |
| 7 | 17 | Toni Shaw | 13 | S10 | Cults Otters | 1:14.10 |
| 8 | 15 | Megan Richter | 16 | S9 | Orion | 1:21.46 |