EVENT 409 Womens MC 50m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 3 | Morgan Holland | 12 | S8 | Chase | 47.39 |
| 2 | 9 | Maisie Summers-Newton | 13 | S6 | Wellingboro | 40.13 |
| 3 | 15 | Anya Falkus | 13 | S13 | Wisbech | 38.08 |
| 4 | 21 | Megan Richter | 15 | S9 | Orion | 32.73 |
| 5 | 18 | Jay McCabe | 13 | S9 | Derwentside | 34.66 |
| 6 | 12 | Levana Hanson | 15 | S8 | Gloucester | 39.11 |
| 7 | 6 | Isabel Dean | 11 | S10 | Leic Peng | 42.42 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 4 | Miki Lin-Gao | 10 | S8 | Deepings | 47.39 |
| 2 | 10 | Katie Crowhurst | 11 | S13 | Wycombe Dist | 39.28 |
| 3 | 16 | Eleanor Bamber | 19 | S10 | Glossop | 35.56 |
| 4 | 22 | Keira Shepherd | 25 | S9 | Nova Cent'n | 32.01 |
| 5 | 19 | Hope Gordon | 21 | S9 | StirlingSwim | 34.38 |
| 6 | 13 | Hayley Milne | 16 | S8 | Grantham | 38.74 |
| 7 | 7 | Megan Russ | 14 | S10 | Swim WM | 41.00 |
| 8 | 1 | Georgia Howell | 13 | S6 | Littleh'pton | 50.60 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 5 | G Cooper-Holmes | 15 | S7 | Carlisle Aq | 42.99 |
| 2 | 11 | Porsha Jones | 13 | S10 | Shrewsbury | 39.25 |
| 3 | 17 | Harriet Dickinson | 18 | S10 | Clevedon | 35.39 |
| 4 | 23 | Lily Macleod | 14 | S13 | RichmondDale | 31.87 |
| 5 | 20 | Coral Farrell | 14 | S10 | Warrington W | 33.13 |
| 6 | 14 | Olivia-Mae Cameron | 16 | S8 | Guildford Ct | 38.60 |
| 7 | 8 | Katie Rilett-Young | 17 | S6 | Burnley BOBC | 40.72 |
| 8 | 2 | Charlotte Mills | 14 | S8 | Hoddesdon | 48.22 |