EVENT 304 Open/Male 15 /Over 100m Breaststrok - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Ethan Gardiner | 15 | Repton | 1:25.90 |
| 4 | 3 | Joseph Maskrey | 15 | BelperMarlin | 1:24.98 |
| 5 | 2 | Joshua Day | 15 | Eckington | 1:24.99 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 5 | Harry Aston | 15 | Etwall | 1:22.31 |
| 3 | 7 | Charlie Jeanes | 15 | Repton | 1:20.56 |
| 4 | 9 | Martin Iankov | 15 | DerbyPhoenix | 1:19.40 |
| 5 | 8 | Harry Milne | 15 | Repton | 1:20.02 |
| 6 | 6 | Ryan Ingram | 15 | Repton | 1:21.78 |
| 7 | 4 | Ollie Tranmer | 15 | Eckington | 1:23.09 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 11 | Oliver Henshaw | 15 | BelperMarlin | 1:16.80 |
| 2 | 13 | Sam Macer | 15 | Repton | 1:14.80 |
| 3 | 15 | Sebastian Ebanks | 16 | Derby Excel | 1:13.92 |
| 4 | 17 | Aaron Johnson | 17 | Repton | 1:13.16 |
| 5 | 16 | Christopher Oliver | 16 | Long Eaton | 1:13.30 |
| 6 | 14 | Ewan Ascott | 18 | Long Eaton | 1:14.52 |
| 7 | 12 | Harrison Grix-White | 15 | Dronfield | 1:14.96 |
| 8 | 10 | Quinn Coppen | 15 | Long Eaton | 1:18.98 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 19 | Nathan Morgan | 17 | Repton | 1:12.97 |
| 2 | 21 | Oliver Gillott | 17 | Dronfield | 1:10.61 |
| 3 | 23 | George Whittle | 17 | Ripley | 1:05.40 |
| 4 | 25 | Jack Blair | 25 | Chesterfield | 1:01.62 |
| 5 | 24 | Jacob Hamblen | 18 | Etwall | 1:03.80 |
| 6 | 22 | Luke Witten | 19 | Long Eaton | 1:09.67 |
| 7 | 20 | Findlay Cordle | 16 | Repton | 1:10.64 |
| 8 | 18 | Yury Bocharnikov | 42 | Derby Excel | 1:13.11 |