EVENT 224 Men/Women 11 /Over 200m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 1 | Tristan De Belligny | 12 | Witham Dolph | 3:48.47 |
| 3 | 3 | Adam O'Neal | 14 | Modernian | 2:59.50 |
| 4 | 5 | Eliza Swanepoel | 14 | Epping For't | 2:59.42 |
| 5 | 4 | Charlotte Brakenbury | 15 | Hitchin | 2:59.46 |
| 6 | 2 | Jan Beblot | 13 | Norwich Swan | 3:19.62 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 7 | Abigail Riches | 14 | Norwich Swan | 2:55.65 |
| 2 | 9 | Charis Neill-Gourlay | 15 | Thetford | 2:51.16 |
| 3 | 11 | Noah Mann | 15 | Newmarket | 2:40.71 |
| 4 | 13 | Freddie Gardner | 16 | Bo Southend | 2:32.58 |
| 5 | 12 | Daniel Grimmer | 16 | West Norfolk | 2:32.87 |
| 6 | 10 | Esmie Kidman | 16 | West Norfolk | 2:50.92 |
| 7 | 8 | Jersey Holmes | 15 | Team Waveney | 2:52.22 |
| 8 | 6 | Autumn Shine | 15 | Potters Bar | 2:56.70 |