EVENT 403 Women MC 100m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | YoB | Cat | Club | Time |
| 0 | 1 | Abigail WICKENS | 07 | S8 | Flitwick | |
| 1 | 2 | Brock WHISTON | 96 | S8 | GBR - BACL | |
| 2 | 3 | Ela LETTON-JONES | 06 | S13 | Caernarfon | 1:39.62 |
| 3 | 4 | Mwaba MKWASA | 05 | S8 | Norwich Swan | 1:33.97 |
| 4 | 5 | Astrid CARROLL | 09 | S13 | Bo Kirklees | 1:33.55 |
| 5 | 6 | Abigail DALY | 05 | S14 | Devonport | 1:32.73 |
| 6 | 7 | Mira Jeanne MAACK | 04 | S8 | Germany | 1:31.90 |
| 7 | 8 | Evie LAMBERT | 07 | S9 | Bo Kirklees | 1:30.53 |
| 8 | 9 | Fern IOANNOU | 03 | S14 | Reading Cygn | 1:25.58 |
| 9 | 10 | Amber HAYCOCK | 07 | S10 | GBR - RUSA | 1:23.22 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | YoB | Cat | Club | Time |
| 0 | 11 | Natalia CHOCIAJ | 03 | S13 | Aberdeen Dol | 1:21.60 |
| 1 | 12 | Nahia ZUDAIRE BORREZO | 04 | S9 | Spain | 1:19.97 |
| 2 | 13 | Rebecca LEWIS | 03 | S10 | GBR - RCTY | 1:19.60 |
| 3 | 14 | Amy SHERIDAN | 04 | S9 | Ireland | 1:16.26 |
| 4 | 15 | Janina BREUER | 98 | S14 | Germany | 1:12.06 |
| 5 | 16 | Poppy MASKILL | 05 | S14 | GBR - ALSN | 1:10.72 |
| 6 | 17 | Roisin NI RIAIN | 05 | S13 | Ireland | 1:08.18 |
| 7 | 18 | Toni SHAW | 03 | S9 | GBR - WUSX | 1:07.83 |
| 8 | 19 | Louise FIDDES | 01 | S14 | GBR - HATT | 1:07.21 |
| 9 | 20 | Jessica-Jane APPLEGATE | 96 | S14 | GBR - NORT | 1:04.26 |