EVENT 203 Boy 09 Yrs/Over 100m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Thomas Collins | 11 | Retford | 1:50.00 |
| 2 | 2 | Jack Ryan | 13 | Eckington | 1:39.87 |
| 3 | 3 | James Thomas | 11 | Gainsborough | 1:27.02 |
| 4 | 4 | Boyen Chestnutt | 15 | Bircotes SC | 1:25.00 |
| 5 | 5 | Max Burroughes | 16 | Southwell | 1:23.00 |
| 6 | 6 | Harveyjay Allsopp | 11 | Sherwood | 1:22.75 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 7 | Jake Askin | 17 | Bircotes SC | 1:16.81 |
| 2 | 8 | Ewan Cox | 13 | Co Lincoln P | 1:16.60 |
| 3 | 9 | William Parnell | 14 | Co Lincoln P | 1:14.41 |
| 4 | 10 | Noah Rai | 15 | Calv Bing | 1:09.36 |
| 5 | 11 | Sebastian Wilkinson | 16 | Bircotes SC | 1:09.00 |
| 6 | 12 | Jack Carter | 15 | Sherwood | 1:07.66 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 14 | Harry Benzies | 16 | Retford | 1:02.52 |
| 2 | 16 | William Turnock | 17 | Calv Bing | 1:01.35 |
| 3 | 18 | Cillian McGuinness | 16 | Retford | 1:01.05 |
| 4 | 17 | Callum Kettlewell | 17 | Retford | 1:01.10 |
| 5 | 15 | Lewis Warner | 16 | Retford | 1:01.69 |
| 6 | 13 | Harry Kingston | 16 | Co Lincoln P | 1:04.90 |