EVENT 104 Womens MC 100m Breaststroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 2 | 2 | Elly Blacknell | 15 | SB8 | Nova Cent'n | |
| 3 | 4 | Elizabeth Foster | 12 | SB7 | Havant & Wat | 3:24.58 |
| 4 | 6 | Charlotte Ryan | 16 | SB6 | Runnymede | 3:05.67 |
| 5 | 5 | Bethany Levett | 13 | SB8 | Stowmarket | 3:11.73 |
| 6 | 3 | Fern Sneddon | 10 | SB6 | RTW Monson | 3:31.08 |
| 7 | 1 | Ella O'Donnell | 13 | SB7 | Man & NW Dis | |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 8 | Jordan Quinn | 15 | SB8 | Putteridge | 2:47.71 |
| 2 | 10 | Ellie Spokes | 13 | SB6 | Loughborough | 2:38.38 |
| 3 | 12 | Ella O'Donnell | 13 | SB7 | Man & NW Dis | 2:30.70 |
| 4 | 14 | Eliza Humphrey | 11 | SB12 | Northampton | 2:26.90 |
| 5 | 13 | Hollie Pinder | 14 | SB8 | Adwick | 2:29.95 |
| 6 | 11 | Charlotte Hyde | 14 | SB6 | Bark & Dagen | 2:31.79 |
| 7 | 9 | Isla Howe | 14 | SB8 | Nova Cent'n | 2:41.90 |
| 8 | 7 | Kayleigh Haggo | 17 | SB5 | Sth Ayrshire | 2:47.78 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 16 | Olivia Pickering | 16 | SB7 | Gloucester | 2:21.70 |
| 2 | 18 | Leah O'Connell | 14 | SB7 | Camden Swiss | 2:18.84 |
| 3 | 20 | Annabelle Ireland | 13 | SB9 | West Suffolk | 2:17.25 |
| 4 | 22 | Megan Short | 18 | SB7 | Satellite | 2:11.12 |
| 5 | 21 | Sophie Taylor | 20 | SB6 | South Lincs | 2:15.90 |
| 6 | 19 | Sallie Phillips | 17 | SB7 | Gloucester | 2:18.25 |
| 7 | 17 | Charlotte McGuinness | 15 | SB6 | Harrogate | 2:21.42 |
| 8 | 15 | Genevieve Hunter | 14 | SB7 | Beachfield | 2:26.65 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 24 | Isabel Dean | 12 | SB9 | Leic Peng | 2:00.84 |
| 2 | 26 | Georgia Howell | 14 | SB6 | Littleh'pton | 1:58.35 |
| 3 | 28 | Emily Stewart | 17 | SB9 | Gates &Whick | 1:57.53 |
| 4 | 30 | Sarah Paschoud | 25 | SB14 | London Dis | 1:54.50 |
| 5 | 29 | Samantha Lewis | 24 | SB8 | Satellite | 1:55.05 |
| 6 | 27 | Scarlett Humphrey | 11 | SB12 | Northampton | 1:57.65 |
| 7 | 25 | Bethany Taylor | 18 | SB14 | Northampton | 1:58.62 |
| 8 | 23 | Madeleine Harris | 13 | SB8 | Elmbridge | 2:10.77 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 32 | Maisie Summers-Newton | 14 | SB6 | Northampton | 1:50.47 |
| 2 | 34 | Anya Falkus | 14 | SB13 | Wisbech | 1:50.26 |
| 3 | 36 | Hayley Milne | 17 | SB7 | Grantham | 1:46.39 |
| 4 | 38 | Cerys Jones | 15 | SB14 | Swansea Aq | 1:45.70 |
| 5 | 37 | Annalise Burgess | 15 | SB9 | Plymouth Lea | 1:45.78 |
| 6 | 35 | Bethan Eckley | 16 | SB9 | Co Cardiff | 1:47.46 |
| 7 | 33 | Porsha Jones | 14 | SB9 | Shrewsbury | 1:50.30 |
| 8 | 31 | Grace Harvey | 18 | SB6 | Hoddesdon | 1:50.96 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 40 | Amy Macfarlane | 23 | SB14 | Motherwell W | 1:43.05 |
| 2 | 42 | Cara Smyth | 15 | SB9 | Incas | 1:41.17 |
| 3 | 44 | Charli Vines | 18 | SB14 | Harrogate | 1:40.61 |
| 4 | 46 | Harriet Dickinson | 19 | SB9 | Gloucester | 1:39.01 |
| 5 | 45 | Aliya Bacakoglu | 12 | SB9 | Halifax | 1:39.79 |
| 6 | 43 | Megan Neave | 13 | SB14 | Swadlincote | 1:40.78 |
| 7 | 41 | Hasna Hakim | 18 | SB9 | Orion | 1:41.95 |
| 8 | 39 | Katie Crowhurst | 12 | SB13 | Wycombe Dist | 1:44.41 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 48 | Abby Kane | 13 | SB13 | Ren 96 | 1:26.70 |
| 2 | 50 | Jessica-Jane Applegate | 20 | SB14 | UEA Norwich | 1:22.72 |
| 3 | 52 | Louise Fiddes | 15 | SB14 | Hatfield | 1:17.93 |
| 4 | 54 | Bethany Firth | 20 | SB14 | Newcastle | 1:12.90 |
| 5 | 53 | Rebecca Redfern | 17 | SB13 | Worcester | 1:13.81 |
| 6 | 51 | Danielle Hartin | 14 | SB14 | Basildon Ph | 1:20.78 |
| 7 | 49 | Chloe Davies | 18 | SB14 | Swansea Aq | 1:25.17 |
| 8 | 47 | Coral Farrell | 15 | SB9 | Warrington W | 1:33.11 |