EVENT 106 Boys 14/15 Yrs 100m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 2 | Ryan Wheeler | 15 | Cheshire | 1:02.28 |
| 1 | 4 | Filip Fraczek-Krygier | 15 | Hampshire | 1:01.49 |
| 2 | 6 | Mason Hunnisett | 15 | Essex | 1:01.01 |
| 3 | 8 | Fraser Wilson | 15 | Scot East | 59.95 |
| 4 | 10 | JAMES NEWMAN | 15 | Leics | 59.70 |
| 5 | 9 | Ewan Wilson | 15 | Lancashire | 59.90 |
| 6 | 7 | Nathaniel Rodrigues | 15 | Kent | 1:00.20 |
| 7 | 5 | Maximillian Bolcato | 15 | Ox & N Bucks | 1:01.47 |
| 8 | 3 | Finn Trehane | 15 | Dorset | 1:01.90 |
| 9 | 1 | Dominik Strba | 14 | Sussex | 1:03.90 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 12 | Cole Hewitt | 15 | Notts | 58.70 |
| 1 | 14 | Dillon Chana | 14 | Middlesex | 58.70 |
| 2 | 16 | Mark Ford | 14 | Scot West | 58.10 |
| 3 | 18 | Manfred Battle | 15 | Suffolk | 57.67 |
| 4 | 20 | Huw Williams | 15 | Somerset | 55.90 |
| 5 | 19 | Will Morris | 15 | N & Durham | 57.00 |
| 6 | 17 | Reid Jones | 15 | Devon | 57.70 |
| 7 | 15 | Reuben Visda | 14 | Yorkshire | 58.30 |
| 8 | 13 | LUKE PULLEN | 15 | Surrey | 58.70 |
| 9 | 11 | Benjamin Chooyin | 15 | Swim Wales E | 59.15 |