EVENT 103 Girls 12/13 Yrs 100m Breaststroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 1 | Hannah Kelly | 13 | Bedfordshire | 1:27.96 |
| 1 | 3 | Ellie Hutchings | 12 | Shropshire | 1:21.97 |
| 2 | 5 | Lauren Kelly | 13 | Sussex | 1:21.89 |
| 3 | 7 | Abi Rawlings | 12 | Gloucs | 1:21.11 |
| 4 | 9 | Kate Davies | 12 | Warwicks | 1:20.68 |
| 5 | 8 | Lucy Clayton | 12 | Worcs | 1:20.83 |
| 6 | 6 | Molly Peters | 12 | Cornwall | 1:21.50 |
| 7 | 4 | Lucy-Jane Wilson | 13 | Cumbria | 1:21.93 |
| 8 | 2 | Anya Bennett | 13 | Northants | 1:22.70 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 11 | Lauren Doughty | 13 | Scot Midland | 1:20.10 |
| 1 | 13 | Rebecca Cook | 13 | Wiltshire | 1:19.57 |
| 2 | 15 | Christy Gold | 13 | Devon | 1:18.66 |
| 3 | 17 | Lana Mo | 13 | Suffolk | 1:17.81 |
| 4 | 19 | Kate Little | 13 | Cambs | 1:14.20 |
| 5 | 18 | Katie Rees | 13 | Swim Wales W | 1:17.59 |
| 6 | 16 | Leah Roughan | 13 | Lincolnshire | 1:18.58 |
| 7 | 14 | Isabel Holmes | 13 | Norfolk | 1:19.49 |
| 8 | 12 | Milly Scotchbrook | 12 | Leics | 1:19.94 |
| 9 | 10 | Caitlin Xerrie | 13 | Swim Wales E | 1:20.30 |