EVENT 119 Boys 12/13 Yrs 100m Backstroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 2 | Lewis Turner | 13 | Cheshire | 1:10.31 |
| 1 | 4 | Henry Gray | 13 | Middlesex | 1:09.62 |
| 2 | 6 | Edgar Stepliuk | 13 | Ox & N Bucks | 1:09.44 |
| 3 | 8 | Calum Peebles | 13 | Scot East | 1:08.89 |
| 4 | 10 | Jake Hutchinson | 13 | Shropshire | 1:07.93 |
| 5 | 9 | Jake Christon | 13 | Lancashire | 1:08.81 |
| 6 | 7 | Adam White | 12 | Somerset | 1:09.00 |
| 7 | 5 | Kyle Wong | 13 | Scot West | 1:09.53 |
| 8 | 3 | George Whittle | 13 | Derbyshire | 1:09.82 |
| 9 | 1 | Thomas Gartside | 12 | Northants | 1:11.85 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 12 | Daniel Clayton | 13 | Suffolk | 1:07.18 |
| 1 | 14 | Toby Clausen | 13 | Yorkshire | 1:07.06 |
| 2 | 16 | Finn Broekhoven | 13 | Devon | 1:06.23 |
| 3 | 18 | Nikita Charykin | 13 | Essex | 1:05.28 |
| 4 | 20 | Thomas Maskell | 13 | N & Durham | 1:04.11 |
| 5 | 19 | Andrew Brett | 13 | Surrey | 1:05.26 |
| 6 | 17 | Joshua Prendergast | 13 | Kent | 1:06.22 |
| 7 | 15 | Alfie Silver | 13 | Notts | 1:06.34 |
| 8 | 13 | Thomas Pearce | 13 | Berks&SBucks | 1:07.16 |
| 9 | 11 | Tristyn James | 13 | Swim Wales E | 1:07.85 |