EVENT 212 Open/Male 09 /Over 50m Breaststroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Dylan MORRIS | 9 | Co Lincoln P | 1:20.00 |
| 4 | 3 | Chance BURFORD | 9 | Boston | 1:13.90 |
| 5 | 2 | Daniel GODDARD | 9 | Grantham | 1:18.33 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 4 | Ethan LUCY | 9 | South Lincs | 1:05.91 |
| 2 | 6 | Cameron JAMISON | 9 | Lincoln TSA | 1:00.05 |
| 3 | 8 | Louis WRIGHT | 10 | Grantham | 56.45 |
| 4 | 10 | Eugene CHEU | 12 | Grantham | 54.49 |
| 5 | 9 | Benjamin GODDARD | 11 | Grantham | 54.72 |
| 6 | 7 | Harry MELDRUM | 12 | Co Lincoln P | 1:00.00 |
| 7 | 5 | Henry STEELE | 10 | South Lincs | 1:05.02 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 12 | Callum LOYNES | 11 | Co Lincoln P | 50.37 |
| 2 | 14 | Toby EDMONDSON | 9 | Grantham | 50.13 |
| 3 | 16 | George LEONARD | 11 | Grantham | 49.45 |
| 4 | 18 | Leo BARNETT | 12 | Grantham | 48.69 |
| 5 | 17 | Bobby WALLIS | 11 | Co Lincoln P | 49.09 |
| 6 | 15 | Patrick ADEJUWON | 12 | South Lincs | 50.02 |
| 7 | 13 | Derrin BROCKLEBANK | 10 | Grantham | 50.16 |
| 8 | 11 | Finley WEST | 12 | Co Lincoln P | 52.71 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 20 | Henry DOLAN | 10 | Grantham | 45.21 |
| 2 | 22 | Morgan GRIFFIN | 13 | South Lincs | 44.47 |
| 3 | 24 | Reuben OWEN | 13 | South Lincs | 44.32 |
| 4 | 26 | Emilijus BINKIS | 12 | South Lincs | 43.11 |
| 5 | 25 | Corey HESELTINE | 12 | Retford | 43.91 |
| 6 | 23 | John BOOR | 18 | South Lincs | 44.40 |
| 7 | 21 | Elliot MCWHIRTER | 14 | Lincoln TSA | 44.80 |
| 8 | 19 | Matthew ROBERTS | 12 | Co Lincoln P | 47.84 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 28 | Joel SADLER | 13 | Grantham | 41.75 |
| 2 | 30 | Charlie WARD | 13 | South Lincs | 39.77 |
| 3 | 32 | Freddie TRAGNI | 14 | Co Lincoln P | 34.89 |
| 4 | 34 | Ryan NORTON | 16 | Boston | 32.61 |
| 5 | 33 | Morgan FARRAR | 14 | Co Lincoln P | 33.44 |
| 6 | 31 | Anas LACHHEB | 14 | South Lincs | 38.50 |
| 7 | 29 | Noah SKINNER | 13 | Deepings | 40.35 |
| 8 | 27 | Oliver WILKINSON | 11 | Lincoln Vulc | 42.58 |