EVENT 403 Womens MC 400m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 0 | 1 | Lauren Sullivan | 97 | S6 | Croydon Amph | 8:21.59 |
| 1 | 3 | Morgan Holland | 03 | S8 | Chase | 7:54.28 |
| 2 | 5 | Megan Atkinson | 00 | S6 | Peterlee | 7:41.78 |
| 3 | 7 | Hollie Pinder | 02 | S9 | Adwick | 7:19.67 |
| 4 | 9 | Sallie Phillips | 99 | S8 | Gloucester | 7:06.73 |
| 5 | 8 | Samantha Lewis | 92 | S9 | Satellite | 7:09.71 |
| 6 | 6 | Adele Maguire | 01 | S8 | Warrington W | 7:22.32 |
| 7 | 4 | Laura Pilkington | 97 | S7 | Broxburn | 7:43.56 |
| 8 | 2 | G Cooper-Holmes | 00 | S7 | Carlisle Aq | 7:57.60 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 0 | 11 | Katie Crowhurst | 04 | S13 | Maidenhead | 7:05.55 |
| 1 | 13 | Nicole Turner | 02 | S6 | Ireland | 6:50.49 |
| 2 | 15 | Fabienne Andre | 96 | S8 | Mid Sussex | 6:45.11 |
| 3 | 17 | Rebecca Franks | 97 | S9 | Gainsborough | 6:27.03 |
| 4 | 19 | Grace Harvey | 98 | S7 | Hoddesdon | 6:19.90 |
| 5 | 18 | Katie Rilett-Young | 98 | S6 | Burnley BOBC | 6:26.28 |
| 6 | 16 | Elisabeth Egel | 00 | S11 | Estonia | 6:30.00 |
| 7 | 14 | Sophie Taylor | 96 | S6 | Loughboro Un | 6:48.32 |
| 8 | 12 | Jeannie Darroch | 89 | S8 | Carlisle Aq | 6:53.87 |
| 9 | 10 | Rebecca Lewis | 03 | S10 | Llantrisant | 7:05.95 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 0 | 21 | Levana Hanson | 00 | S8 | Gloucester | 6:08.98 |
| 1 | 23 | Thelma Bjornsdottir | 96 | S6 | Iceland | 6:03.67 |
| 2 | 25 | Jay McCabe | 02 | S9 | Darlington | 5:58.93 |
| 3 | 27 | Jordan Margery | 92 | S8 | Bridgend Cty | 5:54.86 |
| 4 | 29 | Hope Gordon | 94 | S9 | StirlingSwim | 5:51.33 |
| 5 | 28 | Ailbhe Kelly | 98 | S8 | Ireland | 5:54.73 |
| 6 | 26 | Maya Brisco | 00 | S9 | Staines | 5:58.38 |
| 7 | 24 | Tess Routliffe | 98 | S7 | Canada | 5:59.10 |
| 8 | 22 | Eleanor Bamber | 96 | S10 | Glossop | 6:08.72 |
| 9 | 20 | Eleanor Robinson | 01 | S6 | Northampton | 6:13.96 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 0 | 31 | Camille Berube | 95 | S8 | Canada | 5:46.60 |
| 1 | 33 | Ragna Forsa | 98 | S13 | Norway | 5:43.95 |
| 2 | 35 | Stephanie Baumann | 91 | S9 | Switzerland | 5:40.98 |
| 3 | 37 | Ellen Keane | 95 | S9 | Ireland | 5:34.00 |
| 4 | 39 | Lily Macleod | 01 | S13 | RichmondDale | 5:26.04 |
| 5 | 38 | Emely Telle | 97 | S12 | Germany | 5:27.11 |
| 6 | 36 | Beth Johnston | 01 | S10 | B.E.S.T. | 5:36.67 |
| 7 | 34 | Harriet Dickinson | 97 | S10 | Clevedon | 5:42.28 |
| 8 | 32 | Rebecca Redfern | 99 | S13 | Worcester | 5:44.21 |
| 9 | 30 | Erel Halevi | 91 | S7 | Israel | 5:47.50 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 0 | 42 | Megan Richter | 00 | S9 | Orion | 5:23.03 |
| 1 | 46 | Katarina Roxon | 93 | S9 | Canada | 5:15.30 |
| 2 | 50 | Zara Mullooly | 02 | S10 | Woking | 5:03.75 |
| 3 | 54 | Naomi Maike Schnittger | 94 | S12 | Germany | 4:46.20 |
| 4 | 58 | Stephanie Millward | 81 | S9 | Aquae Sulis | 4:41.99 |
| 5 | 56 | Tully Kearney | 97 | S9 | Boldmere | 4:45.79 |
| 6 | 52 | Rosie Bancroft | 95 | S10 | Co Oxford | 4:49.63 |
| 7 | 48 | Marte Heggertveit | 99 | S9 | Norway | 5:13.04 |
| 8 | 44 | Coral Farrell | 01 | S10 | Warrington W | 5:20.80 |
| 9 | 40 | Morgan Bird | 93 | S8 | Canada | 5:26.00 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 0 | 43 | Susannah Rodgers | 83 | S7 | Beckenham | 5:22.74 |
| 1 | 47 | Yulia Gordiychuk | 98 | S9 | Israel | 5:14.39 |
| 2 | 51 | Nuria Marques Soto | 99 | S9 | Spain | 4:55.68 |
| 3 | 55 | Amy Marren | 98 | S9 | Romford Town | 4:45.99 |
| 4 | 59 | Aurelie Rivard | 96 | S10 | Canada | 4:39.10 |
| 5 | 57 | Hannah Russell | 96 | S12 | Woking | 4:44.17 |
| 6 | 53 | Alice Tai | 99 | S10 | Bourmth Coll | 4:47.52 |
| 7 | 49 | Chloe Buck | 97 | S9 | Harrogate | 5:09.79 |
| 8 | 45 | Teresa Neves | 98 | S10 | Portugal | 5:18.60 |
| 9 | 41 | Eleanor Simmonds | 94 | S6 | Loughboro Un | 5:24.35 |