EVENT 16 Open/Male 50m Breaststroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 2 | 2 | Herbie HENSTONE | 13 | Seagulls SC | 1:12.25 |
| 3 | 4 | Rory NESS | 13 | Bourmth Coll | 1:10.20 |
| 4 | 3 | Julien GBUREK | 14 | Weymouth | 1:10.90 |
| 5 | 1 | Archie WHITELEY | 15 | Bourmth Coll | 1:19.60 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 1 | 6 | Joshua HOFFMANN | 15 | West Dorset | 1:07.15 |
| 2 | 8 | Noah COOPER | 14 | N Dorset SC | 1:04.66 |
| 3 | 10 | Micah LIVELY | 14 | Weymouth | 1:01.77 |
| 4 | 9 | Alfred DRINKHILL | 13 | Weymouth | 1:02.19 |
| 5 | 7 | Aiden STALLEY | 13 | Weymouth | 1:06.40 |
| 6 | 5 | Wlliam GOOM | 15 | Weymouth | 1:07.43 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 1 | 12 | Dexter MURRAY | 13 | Wareham | 1:00.38 |
| 2 | 14 | Alexandru GHEORGHE | 13 | S Bournem'th | 59.24 |
| 3 | 16 | Oscar MACHTYLSKI | 15 | Poole | 58.25 |
| 4 | 15 | Franco HOWLETT | 15 | West Dorset | 59.17 |
| 5 | 13 | Kevin MCGRATH | 13 | Poole | 1:00.01 |
| 6 | 11 | Daniel BEATON | 14 | Seagulls SC | 1:01.72 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 1 | 18 | Edward KEEN | 13 | Bridport Bar | 57.38 |
| 2 | 20 | Milan ZAGANYCH | 15 | Seagulls SC | 55.64 |
| 3 | 22 | Stanley WEIGHELL | 15 | Seagulls SC | 55.46 |
| 4 | 21 | William BIRD | 13 | Poole | 55.53 |
| 5 | 19 | Grayson STROHM | 14 | Poole | 56.95 |
| 6 | 17 | Griffin WALL | 14 | Seagulls SC | 57.39 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 1 | 24 | Seth NORQUOY | 13 | Poole | 53.29 |
| 2 | 26 | Charlie GREEN | 12 | S Bournem'th | 50.47 |
| 3 | 28 | George WILSON | 12 | West Dorset | 47.50 |
| 4 | 27 | Reece EMERY | 12 | Blandford | 49.48 |
| 5 | 25 | Harry HENSHAW | 12 | West Dorset | 51.96 |
| 6 | 23 | Charlie GIRLING | 13 | Bourmth Coll | 54.34 |