EVENT 103 Boys 09 Yrs/Over 100m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Joshua KIM | 10 | Grantham | 2:24.00 |
| 4 | 2 | Elliot GLEAVE | 10 | Grantham | 2:24.00 |
| 5 | 3 | Leo BARNETT | 11 | Grantham | 2:15.86 |
| 6 | 4 | Noah STATON | 9 | March | 1:57.69 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 5 | George LEONARD | 10 | Grantham | 1:51.04 |
| 2 | 6 | Joel SADLER | 12 | Grantham | 1:48.77 |
| 3 | 7 | Thomas HILLSON | 10 | Grantham | 1:42.50 |
| 4 | 8 | Luca HALLAM | 11 | Grantham | 1:39.98 |
| 5 | 9 | Fabian KOLASA | 12 | Grantham | 1:32.28 |
| 6 | 10 | Ben CARLYLE | 13 | Grantham | 1:31.59 |
| 7 | 11 | Oscar DURANT | 12 | Grantham | 1:26.71 |
| 8 | 12 | Benjamin MORRIS | 13 | Boston | 1:23.91 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 14 | Leo GARRISON | 16 | Gainsborough | 1:18.21 |
| 2 | 16 | Daniel DEGNAN | 14 | Grantham | 1:10.38 |
| 3 | 18 | Jude STATON | 14 | March | 1:09.30 |
| 4 | 21 | Owen HATHWAY | 16 | Grantham | 1:01.40 |
| 5 | 19 | Jacob FISH | 13 | Grantham | 1:08.87 |
| 6 | 17 | Connor RICKARD | 15 | March | 1:10.14 |
| 7 | 15 | Zach HOPKINSON | 14 | Grantham | 1:14.82 |
| 8 | 13 | Riley-Lee BURFORD | 15 | Boston | 1:23.11 |