EVENT 2 Open/Male 100m Breaststroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 2 | 1 | Archie WHITELEY | 15 | Bourmth Coll | 2:45.01 |
| 3 | 3 | Daniel BEATON | 14 | Seagulls SC | 2:28.31 |
| 4 | 2 | Herbie HENSTONE | 13 | Seagulls SC | 2:38.99 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 2 | 5 | Grayson STROHM | 14 | Poole | 2:20.10 |
| 3 | 7 | Kevin MCGRATH | 13 | Poole | 2:12.75 |
| 4 | 6 | Charlie GIRLING | 13 | Bourmth Coll | 2:13.50 |
| 5 | 4 | Griffin WALL | 14 | Seagulls SC | 2:21.44 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 1 | 9 | Louis DOBSON | 14 | Bourmth Coll | 2:01.51 |
| 2 | 11 | Edward KEEN | 13 | Bridport Bar | 1:59.78 |
| 3 | 13 | Max PALMER | 14 | Poole | 1:56.68 |
| 4 | 12 | Franco HOWLETT | 15 | West Dorset | 1:58.48 |
| 5 | 10 | Milan ZAGANYCH | 15 | Seagulls SC | 2:00.77 |
| 6 | 8 | Oscar MACHTYLSKI | 15 | Poole | 2:03.41 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 1 | 15 | Stanley WEIGHELL | 15 | Seagulls SC | 1:55.32 |
| 2 | 17 | Charlie GREEN | 12 | S Bournem'th | 1:51.12 |
| 3 | 19 | George WILSON | 12 | West Dorset | 1:47.60 |
| 4 | 18 | Harry HENSHAW | 12 | West Dorset | 1:50.37 |
| 5 | 16 | Reece EMERY | 12 | Blandford | 1:53.31 |
| 6 | 14 | Louis CHONG | 12 | Bourmth Coll | 1:55.58 |