EVENT 2 Girl Open 100m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 3 | 1 | Isabella Haynes | 14 | S9 | S Bournem'th | 1:53.57 |
| 4 | 3 | Poppy Collins | 11 | | Poole | 1:35.76 |
| 5 | 2 | Heather Sayers | 11 | | Weymouth | 1:40.66 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 2 | 5 | Zoe Russell | 13 | | Seagulls SC | 1:26.54 |
| 3 | 7 | Macie Cailes | 12 | | Poole | 1:25.63 |
| 4 | 9 | Halle Robinson | 12 | | Seagulls SC | 1:22.93 |
| 5 | 8 | Ruby Hindell | 13 | | S Bournem'th | 1:24.05 |
| 6 | 6 | Erin McLean | 13 | | Poole | 1:25.70 |
| 7 | 4 | Daria Korotkova | 11 | | Poole | 1:33.82 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 11 | Poppy Bleazard | 15 | | Poole | 1:21.03 |
| 2 | 13 | Olivia Millar | 15 | | S Bournem'th | 1:20.72 |
| 3 | 15 | Sophie Nixon | 16 | | Bourmth Coll | 1:20.66 |
| 4 | 17 | Natalia Baran | 15 | | Poole | 1:20.16 |
| 5 | 16 | Lilly Davies | 15 | | West Dorset | 1:20.63 |
| 6 | 14 | Evie Loudoun | 14 | | Wareham | 1:20.70 |
| 7 | 12 | Ella Francis | 13 | | Seagulls SC | 1:21.03 |
| 8 | 10 | Holly Kearns | 14 | | West Dorset | 1:21.88 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 19 | Lily Winch | 16 | | Wareham | 1:19.60 |
| 2 | 21 | Lexie Taylor | 13 | | Wareham | 1:19.35 |
| 3 | 23 | Erin Smith | 15 | | S Bournem'th | 1:18.47 |
| 4 | 25 | Jessica St Barbe Baker | 18 | | Bridport Bar | 1:17.78 |
| 5 | 24 | Antonia Bright | 15 | | N Dorset SC | 1:18.45 |
| 6 | 22 | Eva Hourigan | 15 | | S Bournem'th | 1:19.15 |
| 7 | 20 | Mabel Reinelt | 15 | | Wareham | 1:19.49 |
| 8 | 18 | Niamh Bradley | 12 | | West Dorset | 1:19.79 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 27 | Roberta Bryson | 13 | | Poole | 1:17.05 |
| 2 | 29 | Charlotte Griffin | 18 | | Seagulls SC | 1:16.63 |
| 3 | 31 | Isabel Ness | 16 | | S Bournem'th | 1:16.02 |
| 4 | 33 | Harriet Fish | 17 | | S Bournem'th | 1:11.87 |
| 5 | 32 | Abigail Sedwards | 15 | | West Dorset | 1:13.65 |
| 6 | 30 | Freya Coupe | 14 | | Poole | 1:16.59 |
| 7 | 28 | Grace Montague | 13 | | Poole | 1:16.68 |
| 8 | 26 | Tahlia O'Kelly | 16 | | S Bournem'th | 1:17.55 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 35 | Anna Miles-Simmonite | 14 | | West Dorset | 1:11.59 |
| 2 | 37 | Hester Mugford | 18 | | Wareham | 1:09.46 |
| 3 | 39 | Ellie Brown | 17 | | S Bournem'th | 1:08.88 |
| 4 | 41 | Tilly McHugh | 16 | | Poole | 1:07.60 |
| 5 | 40 | Amelia Chaffey | 16 | | West Dorset | 1:08.36 |
| 6 | 38 | Aimie Quarrie | 18 | | Poole | 1:09.21 |
| 7 | 36 | Rachel Pope | 18 | | Poole | 1:09.55 |
| 8 | 34 | Claudia Ashford | 18 | | S Bournem'th | 1:11.75 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 43 | Betsy Vavasour | 16 | | Poole | 1:07.20 |
| 2 | 45 | Jessica Huggins | 14 | | Poole | 1:05.91 |
| 3 | 47 | Lauren McRobbie | 19 | | West Dorset | 1:04.43 |
| 4 | 49 | Ella Chown | 19 | | S Bournem'th | 1:01.35 |
| 5 | 48 | Catherine Eland | 18 | | Poole | 1:01.85 |
| 6 | 46 | Ella McNamara | 19 | | Poole | 1:05.00 |
| 7 | 44 | Amy Brown | 18 | | S Bournem'th | 1:06.01 |
| 8 | 42 | S Monera-Cabarique | 17 | | Poole | 1:07.50 |