EVENT 121 Boys 14/15 Yrs 100m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 2 | Aaron Wilson | 15 | Essex | 56.94 |
| 1 | 4 | JAMES BRETT | 15 | Leics | 56.22 |
| 2 | 6 | Dominic Bools | 14 | Notts | 56.00 |
| 3 | 8 | Filip Fraczek-Krygier | 15 | Hampshire | 55.69 |
| 4 | 10 | Jamie Hanss | 14 | Ox & N Bucks | 54.20 |
| 5 | 9 | Sam Perkins | 15 | Suffolk | 55.11 |
| 6 | 7 | Jacob Copeland | 15 | Cheshire | 55.90 |
| 7 | 5 | John Kean | 15 | Scot East | 56.22 |
| 8 | 3 | Alex Bryant | 15 | Dorset | 56.50 |
| 9 | 1 | Benjamin Kelly | 15 | Sussex | 57.48 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 12 | Billy Lee-Knowles | 14 | Middlesex | 53.80 |
| 1 | 14 | Finlay Maxwell | 15 | Kent | 53.00 |
| 2 | 16 | Will Morris | 15 | N & Durham | 52.46 |
| 3 | 18 | Reid Jones | 15 | Devon | 52.10 |
| 4 | 20 | Huw Williams | 15 | Somerset | 51.40 |
| 5 | 19 | Kyo Tanner | 15 | Lancashire | 51.70 |
| 6 | 17 | Ned Sharp | 14 | Yorkshire | 52.30 |
| 7 | 15 | GEORGE ROBERT SHAW | 15 | Surrey | 52.80 |
| 8 | 13 | Kameron Clarke | 15 | Swim Wales E | 53.03 |
| 9 | 11 | Ryan Robertson | 15 | Scot West | 53.90 |