EVENT 451 Female 15 Yrs/Over 200m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 2 | Lottie Abbott Beck | 15 | Wirral Metro | 2:44.38 |
| 2 | 5 | Niamh Khan | 17 | Co Manch Aq | |
| 3 | 7 | Mollie Ingram | 15 | Leyland Barr | 2:40.44 |
| 4 | 9 | Ava Gibson | 18 | Prescot | |
| 5 | 8 | Georgia Cork | 17 | Bolton Metro | |
| 6 | 6 | Weronika Rozwarska | 16 | Co Manch Aq | |
| 7 | 3 | Florence Simcock | 16 | Warrington W | 2:42.48 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 13 | Emily Rowe | 15 | Co Salford | 2:33.95 |
| 2 | 22 | Faith Fellows | 18 | Southport | 2:35.28 |
| 3 | 29 | Emily Hall | 16 | Warrington W | 2:41.31 |
| 4 | 35 | Zahra Davies | 20 | Manc Met Uni | 2:24.67 |
| 5 | 32 | Lauren Berry | 16 | Wirral Metro | 2:24.62 |
| 6 | 26 | Letian Wu | 17 | Trafford Met | |
| 7 | 18 | Libby Woods | 17 | Wigan BEST | |
| 8 | 10 | Ava Halliwell | 15 | Wirral Metro | 2:37.10 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 14 | Mia Burslem | 20 | Co Liverpool | 2:33.59 |
| 2 | 24 | Bethan James | 16 | Wirral Metro | 2:30.60 |
| 3 | 30 | Ruby Sheehan | 19 | Wigan BEST | 2:26.73 |
| 4 | 36 | Iris Hurst | 16 | Warrington W | 2:35.06 |
| 5 | 33 | Henrietta Chick | 17 | Winsford | 2:25.75 |
| 6 | 27 | Camilla Holland | 15 | Wigan BEST | 2:27.27 |
| 7 | 19 | Emily Wade | 18 | Leyland Barr | |
| 8 | 11 | Isabelle Taylor | 18 | Wirral Metro | |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 17 | Sophie Grindley | 21 | Winsford | 2:30.99 |
| 2 | 25 | Martha Sumnall | 16 | Co Liverpool | |
| 3 | 31 | Allanah Donlan | 15 | Warrington W | 2:40.36 |
| 4 | 37 | Abbie Roscoe | 17 | Wirral Metro | 2:19.24 |
| 5 | 34 | Eve Horton | 20 | Wigan BEST | 2:24.17 |
| 6 | 28 | Ellie Schofield | 16 | Aquabears | 2:31.95 |
| 7 | 20 | Hermione Coakley-Hines | 16 | Wirral Metro | 2:31.29 |
| 8 | 12 | Charlotte Ainscough | 15 | Winsford | 2:35.42 |