EVENT 233 Open/Male 15 /Over 100m Backstroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 1 | Ryan Bullock | 15 | Long Eaton | 1:22.79 |
| 1 | 7 | Noah Stevens | 16 | Rykneld | 1:13.01 |
| 2 | 13 | Jack Harris | 15 | Derby Excel | 1:16.96 |
| 3 | 19 | Ewan Ascott | 19 | Long Eaton | 1:09.99 |
| 4 | 25 | Sebastian Ebanks | 17 | Derby Excel | 1:03.36 |
| 5 | 22 | Jacob Pemberton | 15 | BelperMarlin | 1:06.07 |
| 6 | 16 | Carlos Sierra Villegas | 16 | Chesterfield | 1:08.70 |
| 7 | 10 | Joshua Bestwick | 24 | DerbyPhoenix | 1:14.93 |
| 8 | 4 | Finley Maingay | 16 | Derby Excel | 1:17.58 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 2 | Evan Johnson | 15 | BelperMarlin | 1:21.70 |
| 1 | 8 | James Missin | 15 | DerbyPhoenix | 1:19.49 |
| 2 | 14 | Leo Allanson | 18 | Ripley | 1:09.23 |
| 3 | 20 | Cole Webster | 17 | BelperMarlin | 1:05.68 |
| 4 | 26 | Harry Milne | 16 | Repton | 1:00.54 |
| 5 | 23 | Dylan Jamieson | 16 | Derby Excel | 1:04.72 |
| 6 | 17 | Ryan Cornish | 18 | Buxton | 1:07.65 |
| 7 | 11 | Elliott Penney | 18 | Eckington | 1:08.91 |
| 8 | 5 | Benjamin Cami | 16 | Long Eaton | 1:16.87 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 3 | Marcel Barszcz | 15 | Rykneld | 1:15.77 |
| 1 | 9 | Ollie Tranmer | 16 | Eckington | 1:14.05 |
| 2 | 15 | Danny Barron | 16 | Etwall | 1:08.16 |
| 3 | 21 | Charlie Jeanes | 16 | Repton | 1:06.36 |
| 4 | 27 | Ethan Lawton | 23 | Derby Excel | DN:C . |
| 5 | 24 | Ezra Lambert | 18 | Derby Excel | 1:03.57 |
| 6 | 18 | Arron Simpson | 17 | Long Eaton | 1:07.77 |
| 7 | 12 | Gye Whitlam | 43 | DerbyPhoenix | 1:11.76 |
| 8 | 6 | Ethelbert Hems Gillson | 16 | Repton | 1:13.94 |