EVENT 502 Female 15 Yrs/Over 100m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 2 | 1 | Tylia Glynn | 19 | S14 | Knutsford | 1:15.60 |
| 3 | 3 | Rosie Ellison | 15 | | Knutsford | 1:12.10 |
| 4 | 5 | Chloe Hardcastle | 15 | | Blackpool Aq | 1:11.60 |
| 5 | 4 | Lily Hanrahan | 15 | | Co Salford | 1:11.91 |
| 6 | 2 | Isabelle Carter | 15 | | Prescot | 1:12.70 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 7 | Bethan James | 15 | | Wirral Metro | 1:11.20 |
| 2 | 9 | Marley-Rose Garrett | 15 | | Co Liverpool | 1:10.70 |
| 3 | 11 | Ruby Sims | 16 | | Stockport Mo | 1:09.99 |
| 4 | 13 | Weronika Rozwarska | 15 | | Co Manch Aq | 1:09.81 |
| 5 | 12 | Faith Fellows | 17 | | Southport | 1:09.93 |
| 6 | 10 | Amelia Gerrard | 16 | | Co Liverpool | 1:10.30 |
| 7 | 8 | Pippa Vegh | 16 | | Southport | 1:10.92 |
| 8 | 6 | Georgia Cork | 16 | | Bolton Metro | 1:11.59 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 18 | Erin Meath | 16 | | Co Liverpool | 1:09.40 |
| 2 | 20 | Annabelle Chan | 15 | | Winsford | 1:09.05 |
| 3 | 22 | Jessica McNiven | 16 | | Blackpool Aq | 1:08.80 |
| 4 | 24 | Lauren Berry | 15 | | Wirral Metro | 1:08.30 |
| 5 | 23 | Martha Sumnall | 15 | | Co Liverpool | 1:08.57 |
| 6 | 21 | Sophie Whittles | 16 | | Co Salford | 1:09.03 |
| 7 | 19 | Hermione Coakley-Hines | 15 | | Wirral Metro | 1:09.30 |
| 8 | 15 | Evie Blackburn | 17 | | Knutsford | 1:09.70 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 28 | Peiqi Wu | 16 | | Stockport Mo | 1:08.10 |
| 2 | 34 | Letian Wu | 16 | | Trafford Met | 1:06.90 |
| 3 | 40 | Iris Hurst | 15 | | Warrington W | 1:05.66 |
| 4 | 47 | Aleksandra Moskwa | 17 | | Stockport Mo | 1:03.85 |
| 5 | 43 | Jade Phiri | 19 | | Co Manch Aq | 1:04.80 |
| 6 | 37 | Emily Hall | 15 | | Warrington W | 1:06.40 |
| 7 | 31 | Emily Wade | 17 | | Leyland Barr | 1:07.60 |
| 8 | 25 | Emilia Leslie | 17 | | Stockport Mo | 1:08.30 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 29 | Sophia Sugden | 15 | | Co Manch Aq | 1:08.06 |
| 2 | 35 | Lisa Barzaghi | 18 | | Bolton Metro | 1:06.60 |
| 3 | 41 | Ella Faulkner | 16 | | Stockport Mo | 1:05.29 |
| 4 | 48 | Naomi Parker | 19 | | Co Manch Aq | 1:03.80 |
| 5 | 44 | Lily O'Neill | 17 | | Stockport Mo | 1:04.14 |
| 6 | 38 | Eve Horton | 19 | | Wigan BEST | 1:05.93 |
| 7 | 32 | Libby Woods | 16 | | Wigan BEST | 1:07.50 |
| 8 | 26 | Ruby Sheehan | 18 | | Wigan BEST | 1:08.23 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 30 | Lily Smith | 20 | | Ulverston | 1:07.70 |
| 2 | 36 | Maisy Smith | 20 | | Stockport Mo | 1:06.47 |
| 3 | 42 | Henrietta Chick | 16 | | Winsford | 1:05.27 |
| 4 | 50 | Lucia Lesti | 16 | | Co Salford | 1:02.98 |
| 5 | 45 | Zahra Davies | 19 | | Co Manch Aq | 1:04.12 |
| 6 | 39 | Evie Cutter | 16 | | Wigan BEST | 1:05.76 |
| 7 | 33 | Zoey Rogers | 15 | | Trafford Met | 1:07.20 |
| 8 | 27 | Ellie Schofield | 15 | | Aquabears | 1:08.20 |