EVENT 208 Open/Male 09 /Over 100m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 1 | Jayden Cross | 10 | Retford | 1:58.00 |
| 3 | 3 | Ethan Maskrey | 12 | BelperMarlin | 1:42.79 |
| 4 | 5 | Matthew Windeler | 13 | Trafford Met | 1:33.69 |
| 5 | 4 | Alexander Saunders | 9 | Calv Bing | 1:40.00 |
| 6 | 2 | Leo Ko | 11 | Calv Bing | 1:43.00 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 7 | Daniel Mason | 11 | Newark | 1:27.82 |
| 1 | 9 | Justin Hallam | 14 | Calv Bing | 1:24.91 |
| 2 | 11 | Oliver Taylor | 11 | Dronfield | 1:23.74 |
| 3 | 13 | Sebastian Ferrar | 12 | Calv Bing | 1:20.00 |
| 4 | 15 | Reuben Meadows | 13 | Retford | 1:15.66 |
| 5 | 14 | Joshua Gill | 20 | Gainsborough | 1:18.44 |
| 6 | 12 | Noah Lodge | 13 | Eckington | 1:20.62 |
| 7 | 10 | Archie Barrett | 12 | BelperMarlin | 1:24.80 |
| 8 | 8 | Jakob Nelson | 14 | Newark | 1:25.02 |
| 9 | 6 | Michael Pudjianto | 11 | Trafford Met | 1:28.26 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 17 | Jacob Harness | 14 | Bircotes SC | 1:11.30 |
| 1 | 19 | Sebastian Wilkinson | 19 | Bircotes SC | 1:10.76 |
| 2 | 21 | C Butterell-Quanbrough | 14 | Retford | 1:09.50 |
| 3 | 23 | Rishan Chuhan | 15 | Sherwood | 1:07.50 |
| 4 | 25 | Joseph Stirland | 14 | Kimberley | 1:03.80 |
| 5 | 24 | Harry Maskrey | 17 | BelperMarlin | 1:04.83 |
| 6 | 22 | Matthew Wilson | 19 | Dronfield | 1:07.93 |
| 7 | 20 | Noah Dewsnap | 12 | Retford | 1:10.00 |
| 8 | 18 | David Smurawa | 13 | Rykneld | 1:10.87 |
| 9 | 16 | Isaac Shaw | 16 | Newark | 1:12.53 |