EVENT 119 Open/Male 12/13 100m Backstroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Charlie Scollard-Kerr | 13 | Shropshire | 1:14.71 |
| 2 | 3 | Iolo Thomas | 13 | SW Wales | 1:12.65 |
| 3 | 5 | Lewis Cooper | 13 | Cumbria | 1:11.42 |
| 4 | 7 | Thomas Rickels | 12 | Cheshire | 1:10.32 |
| 5 | 6 | Callum White | 13 | Gloucs | 1:11.40 |
| 6 | 4 | Philip Spalding | 13 | Bedfordshire | 1:12.07 |
| 7 | 2 | Aaron Mountford | 13 | Northants | 1:14.59 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 9 | William Oxley | 13 | Leics | 1:09.02 |
| 1 | 11 | Patryk Nowak | 13 | Cambs | 1:08.61 |
| 2 | 13 | Nathaniel Costelloe | 13 | Ox & N Bucks | 1:07.66 |
| 3 | 15 | Zach Montgomery | 13 | Norfolk | 1:07.52 |
| 4 | 17 | Dominik Bartoletti | 13 | Wiltshire | 1:05.67 |
| 5 | 16 | Jack Palmer | 13 | Dorset | 1:07.48 |
| 6 | 14 | Noah Cartlidge | 13 | Staffs | 1:07.65 |
| 7 | 12 | Daniel Hepplestone | 13 | Lincolnshire | 1:07.79 |
| 8 | 10 | William Davies | 13 | Cornwall | 1:08.72 |
| 9 | 8 | Rachata Khowboonchai | 13 | Scot North | 1:09.37 |