EVENT 102 Boys 16/17 Yrs 100m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 2 | Tyler Berry | 17 | Essex | 54.14 |
| 1 | 4 | Ben Samuel | 16 | Dorset | 53.80 |
| 2 | 6 | Balazs Toth | 17 | Hampshire | 53.54 |
| 3 | 8 | Daniel Ferguson | 16 | Scot East | 52.77 |
| 4 | 10 | Billy Martin | 17 | Ox & N Bucks | 52.30 |
| 5 | 9 | SAM DAILLEY | 16 | Devon | 52.40 |
| 6 | 7 | Samuel Cottee | 17 | Suffolk | 53.43 |
| 7 | 5 | Jake Clappison | 17 | Cheshire | 53.63 |
| 8 | 3 | Ben Sherman | 17 | Swim Wales E | 53.88 |
| 9 | 1 | Samuel Williams | 17 | Notts | 55.80 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 12 | HENRY OFFIN | 17 | Surrey | 52.16 |
| 1 | 14 | Daniel Morley | 16 | N & Durham | 51.80 |
| 2 | 16 | Hamish Milne-Skillman | 17 | Somerset | 51.10 |
| 3 | 18 | Ben Martin | 17 | Lancashire | 51.00 |
| 4 | 20 | LEWIS KERROD | 17 | Leics | 49.50 |
| 5 | 19 | Joel Thompson | 16 | Sussex | 50.90 |
| 6 | 17 | Myles Stirk | 17 | Yorkshire | 51.10 |
| 7 | 15 | Ryan Retson | 17 | Scot West | 51.20 |
| 8 | 13 | Oscar Jameson | 17 | Middlesex | 51.90 |
| 9 | 11 | Joseph Dobb | 17 | Kent | 52.30 |