EVENT 502 Open/Male 15 /Over 100m Backstroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Benjamin Cami | 15 | Long Eaton | 1:14.66 |
| 4 | 3 | Jai Dhillon | 15 | DerbyPhoenix | 1:12.17 |
| 5 | 2 | Ethelbert Hems Gillson | 15 | Repton | 1:13.01 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 5 | Zachary Stephenson | 16 | Repton | 1:12.04 |
| 2 | 7 | Danny Barron | 15 | Etwall | 1:09.80 |
| 3 | 9 | James Duggan | 16 | Swadlincote | 1:08.20 |
| 4 | 11 | Ryan Ingram | 15 | Repton | 1:06.79 |
| 5 | 10 | Thomas Earl | 16 | Dronfield | 1:07.52 |
| 6 | 8 | Sam Macer | 15 | Repton | 1:08.50 |
| 7 | 6 | Ollie Tranmer | 15 | Eckington | 1:10.65 |
| 8 | 4 | Noah Stevens | 15 | Rykneld | 1:12.10 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 13 | Cole Webster | 16 | Derby Excel | 1:06.00 |
| 2 | 15 | Arron Simpson | 16 | Long Eaton | 1:05.74 |
| 3 | 17 | Dylan Jamieson | 15 | Repton | 1:04.10 |
| 4 | 19 | Charlie Jeanes | 15 | Repton | 1:03.40 |
| 5 | 18 | Cole Stevens | 16 | Chesterfield | 1:03.66 |
| 6 | 16 | Leo Allanson | 17 | Ripley | 1:05.73 |
| 7 | 14 | Ryan Cornish | 17 | Buxton | 1:05.98 |
| 8 | 12 | Carlos Sierra Villegas | 15 | Chesterfield | 1:06.03 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 21 | Leo Pollock | 17 | Repton | 1:03.00 |
| 2 | 23 | Martin Iankov | 15 | DerbyPhoenix | 1:01.30 |
| 3 | 25 | Nathan Morgan | 17 | Repton | 59.79 |
| 4 | 27 | George Whittle | 17 | Ripley | 56.70 |
| 5 | 26 | Cameron Jamieson | 16 | Repton | 57.60 |
| 6 | 24 | Harry Milne | 15 | Repton | 1:00.20 |
| 7 | 22 | Findlay Cordle | 16 | Repton | 1:02.01 |
| 8 | 20 | Alfie Lynch | 15 | DerbyPhoenix | 1:03.40 |