EVENT 201 Open/Male 09/12 Yrs 50m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Rex Morley | 10 | Rykneld | |
| 4 | 3 | Louie Mackin | 9 | Derby Excel | |
| 5 | 2 | Leo Dowdall | 9 | BelperMarlin | |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 5 | Pierce Pollard | 9 | Chesterfield | |
| 3 | 7 | Edward Clarke | 9 | Chesterfield | |
| 4 | 9 | Oliver Adsetts | 9 | Chesterfield | |
| 5 | 8 | Roman Steinborn | 9 | Chesterfield | |
| 6 | 6 | Leo Joly | 11 | Derby Excel | |
| 7 | 4 | Lucas Pearson | 10 | Chesterfield | |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 11 | Jensen Pickard | 9 | Chesterfield | |
| 3 | 13 | Noah Lee | 12 | Eckington | |
| 4 | 15 | Luke Garner | 10 | Buxton | |
| 5 | 14 | Jacob Farrar | 10 | Eckington | |
| 6 | 12 | Oscar Robinson | 10 | Chesterfield | |
| 7 | 10 | Philip Grzelak | 12 | Chesterfield | |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 17 | Ralph Williams | 12 | Ashbourne | |
| 3 | 19 | Lennon Dutton | 11 | Long Eaton | |
| 4 | 21 | Arben Dushi | 11 | Chesterfield | |
| 5 | 20 | Alex Lewis | 11 | Ashbourne | |
| 6 | 18 | Ewan Hendry | 12 | Bakewell SC | |
| 7 | 16 | Jasper Stott | 9 | Buxton | |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 23 | Osian Richards-Jones | 12 | Ashbourne | |
| 3 | 25 | Tymofii Persianov | 12 | Chesterfield | |
| 4 | 27 | Kaito Mackin | 12 | Derby Excel | |
| 5 | 26 | Matthew Ferreira | 11 | DerbyPhoenix | |
| 6 | 24 | Arlo Sleigh | 9 | Long Eaton | |
| 7 | 22 | Lucas Ferreira | 11 | DerbyPhoenix | |