EVENT 605 Women's MC 100m Breaststroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | YoB | Cat | Club | Time |
| 1 | 1 | Amanda Readhead | 77 | SB6 | Maxwell | 1:50.98 |
| 2 | 2 | Fern Sneddon | 06 | SB6 | RTW Monson | 1:46.91 |
| 3 | 3 | Lily Rice | 04 | SB7 | Pembs Cty | 1:45.99 |
| 4 | 4 | Grace Harvey | 98 | SB5 | Hoddesdon | 1:44.78 |
| 5 | 5 | Iona Winnifrith | 11 | SB7 | Tonbridge | 1:38.31 |
| 6 | 6 | Eliza Humphrey | 05 | SB11 | Northampton | 1:35.99 |
| 7 | 7 | Maisie Summers-Newton | 02 | SB6 | Northampton | 1:31.34 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | YoB | Cat | Club | Time |
| 0 | 8 | Scarlett Humphrey | 05 | SB11 | Northampton | 1:29.27 |
| 1 | 9 | Georgia Sheffield | 05 | SB14 | Bolton Metro | 1:26.75 |
| 2 | 10 | Eva French | 07 | SB9 | Nuneaton | 1:25.68 |
| 3 | 11 | Grace Robinson | 07 | SB14 | Co Manch Aq | 1:21.83 |
| 4 | 12 | Poppy Maskill | 05 | SB14 | Alsager | 1:21.51 |
| 5 | 13 | Siena Oxby | 07 | SB14 | Stockport Mo | 1:20.14 |
| 6 | 14 | Olivia Newman-Baronius | 06 | SB14 | Maxwell | 1:18.19 |
| 7 | 15 | Brock Whiston | 96 | SB8 | Bark & Dagen | 1:16.82 |
| 8 | 16 | Louise Fiddes | 01 | SB14 | Hatfield | 1:15.90 |
| 9 | 17 | Rebecca Redfern | 99 | SB13 | Worcester | 1:14.89 |