EVENT 111 Girls 14/15 Yrs 100m Breaststroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 2 | Beth Dennis | 15 | Cambs | 1:16.80 |
| 1 | 4 | Taylor O'Rourke | 15 | Northants | 1:16.44 |
| 2 | 6 | Daisy Robson-Jones | 14 | Leics | 1:15.00 |
| 3 | 8 | Jessica Morgan | 15 | Lancashire | 1:14.27 |
| 4 | 10 | Clara Von Opel | 14 | Middlesex | 1:14.12 |
| 5 | 9 | Megan Daley | 15 | Berks&SBucks | 1:14.15 |
| 6 | 7 | Penny Evans | 15 | Swim Wales E | 1:14.44 |
| 7 | 5 | Aimee Watson | 14 | Scot West | 1:16.10 |
| 8 | 3 | Rebecca Keetley | 14 | N & Durham | 1:16.64 |
| 9 | 1 | Summer Best | 15 | Swim Wales W | 1:17.52 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 12 | Abigail Miles | 14 | Yorkshire | 1:13.85 |
| 1 | 14 | Amy Brown | 14 | Dorset | 1:13.06 |
| 2 | 16 | Illizane Pinfold | 14 | Ox & N Bucks | 1:12.91 |
| 3 | 18 | Flora Perkin | 15 | Devon | 1:11.29 |
| 4 | 20 | Ellie Reilly | 15 | Scot East | 1:09.73 |
| 5 | 19 | Jemimah Berkeley | 14 | Kent | 1:10.11 |
| 6 | 17 | Isabella Fakkel | 15 | Surrey | 1:12.70 |
| 7 | 15 | Annabelle Burgess | 15 | Suffolk | 1:12.95 |
| 8 | 13 | Alice Chan | 15 | Somerset | 1:13.30 |
| 9 | 11 | Kameliya Stoimenova | 15 | Essex | 1:13.92 |