EVENT 309 Open/Male 14/15 Yrs 50m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Toby Banks | 14 | Eckington | 38.25 |
| 4 | 3 | Joseph Wright | 14 | Rykneld | 36.70 |
| 5 | 2 | Stanley Jones | 14 | Etwall | 37.02 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 5 | George Quirie | 15 | Long Eaton | 33.97 |
| 2 | 7 | Joshua Day | 15 | Eckington | 33.29 |
| 3 | 9 | Ollie Tranmer | 15 | Eckington | 32.90 |
| 4 | 11 | William Dalton | 14 | Long Eaton | 32.70 |
| 5 | 10 | Ethan Gardiner | 15 | Repton | 32.80 |
| 6 | 8 | Joseph Diacon | 15 | Dronfield | 32.95 |
| 7 | 6 | Peter Wilson | 15 | Buxton | 33.59 |
| 8 | 4 | Harry Aston | 15 | Etwall | 34.10 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 13 | Joseph Maskrey | 15 | BelperMarlin | 32.23 |
| 2 | 15 | Harrison Grix-White | 15 | Dronfield | 31.60 |
| 3 | 17 | Lucas Kimber | 14 | Ripley | 31.60 |
| 4 | 19 | Jack Harris | 14 | Derby Excel | 31.17 |
| 5 | 18 | Benjamin Cami | 15 | Long Eaton | 31.57 |
| 6 | 16 | Samuel Shakespeare | 15 | BelperMarlin | 31.60 |
| 7 | 14 | Danny Barron | 15 | Etwall | 31.80 |
| 8 | 12 | Noah Stevens | 15 | Rykneld | 32.57 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 21 | Riley Errington | 15 | Swadlincote | 30.00 |
| 2 | 23 | Zachary Drayson | 14 | BelperMarlin | 28.70 |
| 3 | 25 | Oliver Henshaw | 15 | BelperMarlin | 28.20 |
| 4 | 27 | Jaden Leo | 14 | BelperMarlin | 27.70 |
| 5 | 26 | Martin Iankov | 15 | DerbyPhoenix | 28.00 |
| 6 | 24 | Oliver Stone | 15 | Ripley | 28.20 |
| 7 | 22 | Jacob Pemberton | 14 | BelperMarlin | 29.54 |
| 8 | 20 | Evan Johnson | 14 | BelperMarlin | 30.50 |