EVENT 414 Boys 15 Yrs/Over 100m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 1 | Jai Dhillon | 15 | DerbyPhoenix | 1:17.69 |
| 3 | 3 | Benjamin Cami | 15 | Long Eaton | 1:20.38 |
| 4 | 5 | Samuel Hurst | 20 | Etwall | 1:11.95 |
| 5 | 4 | Taylor Reeves | 18 | Swadlincote | 1:13.32 |
| 6 | 2 | Beau Birtles | 15 | Chesterfield | 1:12.62 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 9 | Ewan Ascott | 18 | Long Eaton | 1:13.31 |
| 1 | 15 | Matthew Foreman | 17 | Buxton | DN:C . |
| 2 | 21 | Noah Van Hoorebeek | 16 | Eckington | 1:04.99 |
| 3 | 27 | Harry Milne | 15 | Repton | 1:04.31 |
| 4 | 33 | Benjamin Twynham | 18 | Co Derby | 1:00.75 |
| 5 | 30 | Oliver Stone | 15 | Ripley | 1:04.67 |
| 6 | 24 | Sam Macer | 15 | Repton | 1:06.64 |
| 7 | 18 | Callum Burch | 17 | Matlock | 1:09.42 |
| 8 | 12 | N Miller-Walters | 19 | BelperMarlin | DN:C . |
| 9 | 6 | Jack Bainbridge | 15 | Chesterfield | 1:14.01 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 10 | Sergei Kulev | 16 | Rykneld | 1:14.86 |
| 1 | 16 | Sam Robertson | 17 | Swadlincote | 1:10.82 |
| 2 | 22 | Nathan Morgan | 17 | Repton | 1:08.06 |
| 3 | 28 | Flynn Mulligan | 18 | Repton | 1:04.46 |
| 4 | 34 | Leo Pollock | 17 | Repton | 58.36 |
| 5 | 31 | Oliver Osborne | 16 | Long Eaton | 1:02.38 |
| 6 | 25 | Oliver Henshaw | 15 | BelperMarlin | 1:04.52 |
| 7 | 19 | Andrew Edgar | 15 | Chesterfield | 1:08.41 |
| 8 | 13 | Dylan Jamieson | 15 | Repton | 1:09.72 |
| 9 | 7 | Riley Errington | 15 | Swadlincote | 1:22.95 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 11 | Christopher Oliver | 16 | Long Eaton | 1:09.64 |
| 1 | 17 | James Duggan | 16 | Swadlincote | 1:14.94 |
| 2 | 23 | Carl Kirsopp | 26 | Rykneld | 1:06.26 |
| 3 | 29 | Sebastian Ebanks | 16 | Co Derby | 1:04.08 |
| 4 | 35 | Joshua Bailye | 18 | Repton | 58.21 |
| 5 | 32 | Ezra Lambert | 17 | Repton | 1:00.44 |
| 6 | 26 | G Sierra Villegas | 18 | Chesterfield | 1:03.65 |
| 7 | 20 | Joshua Bestwick | 23 | DerbyPhoenix | 1:09.46 |
| 8 | 14 | Jacob Helps | 17 | Repton | 1:08.70 |
| 9 | 8 | Harry Maskrey | 16 | BelperMarlin | 1:10.78 |