EVENT 106 Boys 14/15 Yrs 100m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 2 | Owen Ray | 14 | Scot East | 1:01.96 |
| 1 | 4 | George Smith | 15 | Shropshire | 1:00.84 |
| 2 | 6 | Lucas Horton | 14 | Cheshire | 1:00.69 |
| 3 | 8 | Sunni Johnson | 14 | Ox & N Bucks | 1:00.19 |
| 4 | 10 | Kaden Edwards | 15 | Swim Wales E | 59.51 |
| 5 | 9 | Jacob Whittle | 15 | Derbyshire | 59.56 |
| 6 | 7 | Adam Strickland | 15 | N & Durham | 1:00.60 |
| 7 | 5 | Kyle Merryweather | 15 | Notts | 1:00.78 |
| 8 | 3 | Ruairi McKinnon | 15 | Scot West | 1:00.91 |
| 9 | 1 | Thomas Page | 15 | Suffolk | 1:02.46 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 12 | Evan Jones | 15 | Somerset | 59.41 |
| 1 | 14 | Alessandro Rioda | 15 | Essex | 58.75 |
| 2 | 16 | Thomas Currie | 15 | Northants | 58.40 |
| 3 | 18 | Samuel Tucker | 15 | Berks&SBucks | 57.77 |
| 4 | 20 | James Hart | 15 | Devon | 55.69 |
| 5 | 19 | Louis Hayes | 15 | Kent | 57.29 |
| 6 | 17 | Matthew Woodhall | 15 | Yorkshire | 58.00 |
| 7 | 15 | Ellis Cleworth | 15 | Lancashire | 58.67 |
| 8 | 13 | Sam Cornish | 15 | Middlesex | 59.27 |
| 9 | 11 | Hendrik Van Der Leest | 15 | Surrey | 59.45 |