EVENT 127 Boys 14/15 Yrs 100m Backstroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 2 | Cole Hewitt | 15 | Notts | 1:03.60 |
| 1 | 4 | Liam McLaughlin | 15 | Scot East | 1:03.44 |
| 2 | 6 | Gabriel Glynn | 14 | Lancashire | 1:01.90 |
| 3 | 8 | Reuben Visda | 14 | Yorkshire | 1:01.60 |
| 4 | 10 | WILLIAM BELL | 15 | Leics | 1:01.17 |
| 5 | 9 | Ollie Fairman | 15 | Dorset | 1:01.50 |
| 6 | 7 | Pietro Forconi | 14 | Hampshire | 1:01.69 |
| 7 | 5 | Jolan Bennett | 14 | Cheshire | 1:02.90 |
| 8 | 3 | Alexander Sargeant | 15 | Somerset | 1:03.60 |
| 9 | 1 | Theo Matanle | 15 | Sussex | 1:06.66 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 12 | James Cooper | 15 | Essex | 1:00.71 |
| 1 | 14 | Jack Bowyer | 15 | Suffolk | 1:00.40 |
| 2 | 16 | RA'EEZ WARLEY | 15 | Devon | 59.70 |
| 3 | 18 | Aaron Beckford | 15 | N & Durham | 59.30 |
| 4 | 20 | LUKE PULLEN | 15 | Surrey | 56.70 |
| 5 | 19 | Mark Ford | 14 | Scot West | 59.00 |
| 6 | 17 | Ioan Evans | 15 | Swim Wales E | 59.33 |
| 7 | 15 | Nicholas Skelton | 14 | Ox & N Bucks | 1:00.25 |
| 8 | 13 | Finlay Maxwell | 15 | Kent | 1:00.50 |
| 9 | 11 | Dillon Chana | 14 | Middlesex | 1:00.80 |