EVENT 106 Mens Open 100m Breaststroke - Heats
Not Competing : 28
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 3 | 2 | Sydney NEWNHAM-STEBBIN | 14 | Lstoft & OB | 1:17.29 |
| 4 | 4 | Liam MURPHY | 14 | Dereham | 1:17.57 |
| 5 | 3 | James NARENGIAN | 16 | Hoddesdon | DN:C. |
| 6 | 1 | Joseph COLLINS | 14 | Bishop Stort | 1:18.88 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 8 | Keenan STOKES | 15 | UEA Norwich | 1:14.36 |
| 2 | 14 | Ryan SYKES | 17 | West Norfolk | 1:15.78 |
| 3 | 20 | Jake TYSON | 16 | teamipswich | 1:12.82 |
| 4 | 26 | Christopher SMITH | 17 | Hoddesdon | 1:08.88 |
| 5 | 23 | Luke WESTWOOD | 23 | Co Cambridge | 1:11.31 |
| 6 | 17 | Nicholas STALLEY | 16 | Modernians | 1:14.28 |
| 7 | 11 | Thomas STOKES | 20 | Co Peterboro | 1:17.97 |
| 8 | 5 | Jordan RUDGE | 14 | Braintree | 1:23.20 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 9 | Ashley TRENT | 16 | Co Cambridge | 1:15.67 |
| 2 | 15 | James NEWTON | 15 | Co Peterboro | 1:14.51 |
| 3 | 21 | Robert LANCASTER | 16 | Stowmarket | 1:10.29 |
| 4 | 27 | Benjamin PURCELL | 16 | Hatfield | 1:09.57 |
| 5 | 24 | Ryan CLAY | 17 | teamipswich | 1:08.33 |
| 6 | 18 | Thomas ARKLE | 17 | St Felix Sch | 1:14.28 |
| 7 | 12 | Benjamin HORNER | 16 | Biggleswade | 1:18.98 |
| 8 | 6 | Martin RUSSELL-ROGERS | 15 | Hitchin | 1:18.58 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 10 | Ethan FARRELL | 16 | Hatfield | 1:16.27 |
| 2 | 16 | Harry PARKER | 15 | Hatfield | 1:16.21 |
| 3 | 22 | Hayden THOMAS | 18 | Epping For't | 1:12.14 |
| 4 | 29 | Isaac KIRBY | 15 | UEA Norwich | 1:09.21 |
| 5 | 25 | Ethan LAMB | 17 | Hatfield | 1:13.15 |
| 6 | 19 | Joshua GRAY | 19 | West Norfolk | 1:14.91 |
| 7 | 13 | Dominic SCIFO | 13 | teamipswich | DQ:T . |
| 8 | 7 | Leyton BERREY | 14 | UEA Norwich | 1:15.55 |