EVENT 122 Girls 16/17 Yrs 100m Breaststroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 1 | Kate Grindley | 16 | Shropshire | 1:24.75 |
| 1 | 3 | Melissa Dolby | 16 | Northants | 1:24.30 |
| 2 | 5 | Dara Fitzgerald | 16 | Swim Wales E | 1:18.98 |
| 3 | 7 | Charlotte Gardo | 16 | Wiltshire | 1:17.52 |
| 4 | 9 | Molly Norman | 16 | Cambs | 1:16.73 |
| 5 | 8 | Bethany Elmer | 17 | Suffolk | 1:17.07 |
| 6 | 6 | Anna Broadbent | 17 | Cumbria | 1:18.69 |
| 7 | 4 | Laura Jones | 17 | Norfolk | 1:19.40 |
| 8 | 2 | Lucy Beal | 16 | Leics | 1:24.67 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 11 | Ellie Finlayson | 17 | Scot Midland | 1:16.52 |
| 1 | 13 | Chloe Hannam | 16 | Lincolnshire | 1:15.07 |
| 2 | 15 | Tabitha Monkhouse | 17 | Worcs | 1:14.63 |
| 3 | 17 | Amber Brewer | 16 | Gloucs | 1:13.70 |
| 4 | 19 | Bethan Sloan | 16 | Swim Wales W | 1:13.13 |
| 5 | 18 | Amy Cole | 17 | Devon | 1:13.27 |
| 6 | 16 | Rebecca Lobley | 16 | Sussex | 1:13.89 |
| 7 | 14 | Hayley Alcock | 16 | Bedfordshire | 1:14.89 |
| 8 | 12 | Maddie Spalding | 16 | Warwicks | 1:15.33 |
| 9 | 10 | Kay De Courcy | 17 | Cornwall | 1:16.70 |