EVENT 125 Boys 12/13 Yrs 100m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 1 | William Carter | 13 | Shropshire | 1:17.04 |
| 1 | 3 | Tom Robinson | 12 | Cumbria | 1:14.64 |
| 2 | 5 | Scott McLay | 13 | Scot Midland | 1:12.00 |
| 3 | 7 | Matthew Williams | 13 | Swim Wales E | 1:10.32 |
| 4 | 9 | Alex Seymour | 12 | Gloucs | 1:09.10 |
| 5 | 8 | Iestyn Cole | 13 | Swim Wales W | 1:10.00 |
| 6 | 6 | Sean Purvis | 13 | Wiltshire | 1:11.20 |
| 7 | 4 | Charlie Coulthard | 12 | Cornwall | 1:12.24 |
| 8 | 2 | Joseph Murray | 13 | Bedfordshire | 1:16.30 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 11 | Jordan Bull | 13 | Lincolnshire | 1:08.40 |
| 1 | 13 | Luke Elliman | 13 | Sussex | 1:07.72 |
| 2 | 15 | Jonathon McMahon | 13 | Worcs | 1:06.97 |
| 3 | 17 | Danny Savage | 12 | Northants | 1:06.80 |
| 4 | 19 | Ryan Gordon | 13 | Leics | 1:05.67 |
| 5 | 18 | Thomas Downs | 13 | Devon | 1:06.36 |
| 6 | 16 | Dominic Scifo | 12 | Suffolk | 1:06.93 |
| 7 | 14 | Matthew Price | 12 | Warwicks | 1:07.10 |
| 8 | 12 | George Clarke | 13 | Norfolk | 1:08.37 |
| 9 | 10 | Daniel Leigh | 13 | Cambs | 1:08.44 |