EVENT 306 Boy 07 Yrs/Over 100m Breaststroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 1 | OSCAR DUTTON-LEE | 12 | Grantham | |
| 3 | 2 | ARTHUR BREARLEY-NEWSOM | 10 | Grantham | |
| 4 | 3 | MATAS RABASAUSKAS | 11 | Grantham | |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 4 | OSCAR DURANT | 10 | Grantham | |
| 2 | 5 | JAMES TOWNSIN | 12 | Deepings | 2:30.65 |
| 3 | 6 | THOMAS BURDOCK | 10 | Deepings | 2:28.40 |
| 4 | 7 | OLIVER CLARKE | 9 | Deepings | 2:23.33 |
| 5 | 8 | MATT HALL | 10 | Deepings | 2:18.70 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 9 | KAI WATSON | 9 | Deepings | 2:17.44 |
| 2 | 10 | VINCENT CLARE | 12 | Deepings | 2:09.47 |
| 3 | 11 | ANT HALL | 12 | Deepings | 2:07.50 |
| 4 | 12 | LUCA HALLAM | 9 | Grantham | 2:00.44 |
| 5 | 13 | JOEL SADLER | 10 | Grantham | 1:57.22 |
| 6 | 14 | JAMES CASH | 11 | Deepings | 1:56.95 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 15 | JACOB FISH | 12 | Grantham | 1:56.20 |
| 2 | 16 | RHYS TERRY | 13 | Grantham | 1:55.19 |
| 3 | 17 | WILLIAM BURDOCK | 12 | Deepings | 1:53.99 |
| 4 | 18 | FINLAY SMITH | 13 | Deepings | 1:52.39 |
| 5 | 19 | FABIAN KOLASA | 10 | Grantham | 1:52.22 |
| 6 | 20 | LEWIS TARVER | 13 | Deepings | 1:51.74 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 21 | LUKE DAYBELL | 12 | Grantham | 1:51.33 |
| 2 | 22 | ADRIAN ELERTS | 11 | Grantham | 1:48.67 |
| 3 | 23 | JACK REYNOLDS | 11 | Grantham | 1:47.07 |
| 4 | 24 | CORMAC STANLEY | 16 | Grantham | 1:36.93 |
| 5 | 25 | JAKE BATY | 16 | Grantham | 1:33.14 |
| 6 | 26 | RIDAS RABASAUSKAS | 13 | Grantham | 1:31.93 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 27 | ZACH HOPKINSON | 12 | Grantham | 1:30.15 |
| 2 | 28 | JAMES NICHOLS | 12 | Grantham | 1:30.14 |
| 3 | 29 | DANIEL DEGNAN | 13 | Grantham | 1:27.25 |
| 4 | 30 | PAUL SMITH-SHELTON | 53 | Deepings | 1:26.54 |
| 5 | 31 | JACOB BRIERS | 13 | Deepings | 1:26.40 |
| 6 | 32 | THOMAS THORNTON | 13 | Grantham | 1:25.13 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 34 | BAILEY JACKSON-CHILVER | 17 | Deepings | 1:22.89 |
| 2 | 36 | SAMUEL LEVERIDGE | 15 | Grantham | 1:17.35 |
| 3 | 38 | GEORGE BERWICK | 18 | Grantham | 1:10.34 |
| 4 | 37 | CADE DEAVES | 16 | Grantham | 1:15.22 |
| 5 | 35 | ELIJAH HALLIDAY | 14 | Grantham | 1:18.99 |
| 6 | 33 | TOM BERWICK | 15 | Grantham | 1:24.51 |