EVENT 106 Girl 100m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 3 | Casey-Leigh Cartwright | 11 | Bo Stockton | 1:52.19 |
| 2 | 5 | Emily Lynn | 13 | Hartlepool | 1:40.00 |
| 3 | 7 | Darcey Draper | 13 | Bo Stockton | 1:30.60 |
| 4 | 6 | Catherine Dawson | 12 | Billingham | 1:40.00 |
| 5 | 4 | Freya Dobbison | 14 | Gates &Whick | 1:42.93 |
| 6 | 1 | Maisie Mack | 14 | Billingham | |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 9 | Eleanor Sharp | 14 | Billingham | 1:29.77 |
| 2 | 11 | Faye Brown | 14 | Gates &Whick | 1:27.37 |
| 3 | 13 | Lola Timmins | 13 | Bo Stockton | 1:24.39 |
| 4 | 12 | Evie Harding | 14 | Bo Stockton | 1:25.28 |
| 5 | 10 | Chloe Harding | 15 | Sedgefield | 1:28.40 |
| 6 | 8 | Zara Hogg | 14 | Billingham | 1:30.47 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 15 | Kayleigh Hatfield | 14 | Billingham | 1:23.01 |
| 2 | 17 | Phoebe Fixter | 17 | Billingham | 1:22.33 |
| 3 | 19 | Heidi Carr | 12 | Gates &Whick | 1:20.70 |
| 4 | 18 | Emily Robson | 15 | Darlington | 1:21.72 |
| 5 | 16 | Rachael Hague | 15 | Guisborough | 1:23.00 |
| 6 | 14 | Eve Walton | 16 | Guisborough | 1:23.39 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 21 | Alisha Hodgson | 13 | Gates &Whick | 1:19.91 |
| 2 | 23 | Rosie Jackson | 15 | Gates &Whick | 1:18.83 |
| 3 | 25 | Molly Gould | 14 | South Tyne | 1:18.15 |
| 4 | 24 | Molly Scott | 13 | Gates &Whick | 1:18.79 |
| 5 | 22 | Arthiga Rajeev | 12 | Bo Stockton | 1:19.39 |
| 6 | 20 | Isobel Omoregbe | 12 | Gates &Whick | 1:20.06 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 27 | Emily Hutchinson | 15 | Hartlepool | 1:16.40 |
| 2 | 29 | Ruby Diment | 14 | Darlington | 1:15.80 |
| 3 | 31 | Holly Marran | 15 | South Tyne | 1:14.13 |
| 4 | 30 | Katrina Ho | 15 | Gates &Whick | 1:14.28 |
| 5 | 28 | Alice Ward | 13 | Bo Stockton | 1:16.10 |
| 6 | 26 | Isobelle Troop | 15 | Guisborough | 1:17.57 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 33 | Lucy Oliver | 11 | Darlington | 1:13.40 |
| 2 | 35 | Emma Price | 13 | Sedgefield | 1:12.53 |
| 3 | 37 | Lucy Betsho | 17 | Billingham | 1:12.37 |
| 4 | 36 | Nadine Wilson | 13 | Bo Stockton | 1:12.50 |
| 5 | 34 | Ava Alderson | 13 | Bo Stockton | 1:12.80 |
| 6 | 32 | Eva Lamb | 14 | Guisborough | 1:13.58 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 39 | Lois Hickson | 15 | Loftus Dol | 1:11.00 |
| 2 | 41 | Isbabel Fox | 13 | Gates &Whick | 1:09.83 |
| 3 | 44 | Becky Watson | 14 | Bo Stockton | 1:07.30 |
| 4 | 43 | Leone Young | 17 | Billingham | 1:07.70 |
| 5 | 40 | Faith Omoregbe | 14 | Gates &Whick | 1:10.83 |
| 6 | 38 | Sarah Shears | 17 | Hartlepool | 1:12.30 |