EVENT 109 Girls 12/13 Yrs 100m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 2 | Lola Wheeler | 12 | Shropshire | 1:06.39 |
| 1 | 4 | Alexandra Anderson | 13 | Scot West | 1:03.55 |
| 2 | 6 | Alice Weston | 13 | Berks&SBucks | 1:02.69 |
| 3 | 8 | Eleanor Kay | 13 | Lancashire | 1:01.97 |
| 4 | 10 | Kate Carruthers | 13 | Scot East | 1:01.57 |
| 5 | 9 | Frankie Hatchard | 13 | Somerset | 1:01.65 |
| 6 | 7 | Sophie Busby | 13 | Derbyshire | 1:02.20 |
| 7 | 5 | Erin Stewart | 13 | Ox & N Bucks | 1:03.22 |
| 8 | 3 | Ruby Griffiths | 13 | Devon | 1:03.93 |
| 9 | 1 | Ella Edwards | 12 | Northants | 1:06.58 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 12 | Mika Ogden | 13 | Middlesex | 1:01.40 |
| 1 | 14 | Beth Robinson | 13 | Cheshire | 1:00.92 |
| 2 | 16 | Pearl Lightwood | 13 | N & Durham | 1:00.45 |
| 3 | 18 | Hollie Widdows | 13 | Surrey | 59.75 |
| 4 | 20 | Eva Okaro | 13 | Kent | 58.62 |
| 5 | 19 | Karys-Rose Bunn | 13 | Suffolk | 59.75 |
| 6 | 17 | Ruby Wheeler | 13 | Essex | 1:00.08 |
| 7 | 15 | Libby Munday | 13 | Yorkshire | 1:00.70 |
| 8 | 13 | Marija Romanovskaja | 13 | Notts | 1:01.05 |
| 9 | 11 | Sofia Chayka | 13 | Swim Wales E | 1:01.42 |