EVENT 7 Boy Open 200m IM - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 2 | 1 | Frank OTTON | 11 | Weymouth | 3:28.50 |
| 3 | 2 | Jenson LOWE | 12 | Poole | 3:24.97 |
| 4 | 3 | Liam DETRICK | 10 | Poole | 3:18.28 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 2 | 4 | Alexander BEATON | 11 | Seagulls SC | 3:12.36 |
| 3 | 5 | Jack FEILDER | 12 | Poole | 3:11.31 |
| 4 | 6 | Theo MCCARTHY | 09 | Bridport Bar | 3:08.89 |
| 5 | 7 | Billy LEWIS | 10 | S Bournem'th | 3:08.60 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 1 | 8 | James FLEMING | 11 | S Bournem'th | 3:08.57 |
| 2 | 9 | Frank TURNER | 11 | Weymouth | 3:07.91 |
| 3 | 10 | Harrison O'HARA | 11 | Poole | 3:06.79 |
| 4 | 11 | Ollie DRUDGE | 10 | N Dorset SC | 3:05.95 |
| 5 | 12 | Leo IBBOTSON | 10 | Wareham | 3:05.77 |
| 6 | 13 | Henry WALKER | 11 | Poole | 3:03.79 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 1 | 14 | Finlay LAWS | 10 | S Bournem'th | 2:57.41 |
| 2 | 15 | Archie RAND | 10 | Seagulls SC | 2:57.38 |
| 3 | 16 | Elliot WARE | 09 | S Bournem'th | 2:57.04 |
| 4 | 17 | Tommy GLEESON | 10 | Seagulls SC | 2:56.30 |
| 5 | 18 | Miron WOZNIAK | 09 | Blandford | 2:53.13 |
| 6 | 19 | Geoffrey GOODRICK | 09 | Weymouth | 2:51.39 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 1 | 21 | Lawrence GOODRICK | 07 | Weymouth | 2:44.36 |
| 2 | 23 | Toby LACEY | 08 | S Bournem'th | 2:33.98 |
| 3 | 25 | Konner BURGHART | 06 | S Bournem'th | 2:30.50 |
| 4 | 24 | Thomas DEWEY | 08 | Seagulls SC | 2:33.03 |
| 5 | 22 | Daniel HUSSEY | 07 | Bridport Bar | 2:43.99 |
| 6 | 20 | Connor PITTWOOD | 10 | Poole | 2:50.39 |