EVENT 119 Boys 12/13 Yrs 100m Backstroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Oliver Birtwistle | 13 | Shropshire | 1:16.15 |
| 2 | 3 | Toby Robinson | 13 | Gloucs | 1:11.93 |
| 3 | 5 | Louis Robson | 13 | SE Herts | 1:11.40 |
| 4 | 7 | Dominik Bartoletti | 12 | Wiltshire | 1:10.35 |
| 5 | 6 | Oscar Hunter | 13 | Norfolk | 1:10.82 |
| 6 | 4 | O Vasconcellos-Blanch | 13 | Northants | 1:11.84 |
| 7 | 2 | Marley Griffiths | 13 | Cumbria | 1:15.58 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 9 | Jacob Fish | 13 | Lincolnshire | 1:10.01 |
| 1 | 11 | Reuben Hubinger | 13 | Derbyshire | 1:08.89 |
| 2 | 13 | Stanley Yeats | 13 | Sussex | 1:07.99 |
| 3 | 15 | Oscar Devaal | 13 | Staffs | 1:06.95 |
| 4 | 17 | Xander Tovey | 12 | Warwicks | 1:05.18 |
| 5 | 16 | Wilfred Leigh | 13 | Dorset | 1:06.94 |
| 6 | 14 | Toby Stoddard | 13 | Cornwall | 1:07.19 |
| 7 | 12 | Raul Digregorio | 13 | Hampshire | 1:08.36 |
| 8 | 10 | Daniel De Filippo | 13 | Bedfordshire | 1:09.26 |
| 9 | 8 | Max Offord | 13 | Cheshire | 1:10.11 |