EVENT 603 Boys Open 100m Breaststroke - Heats
Not Competing : 18,21,27,45
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 3 | 1 | Owen WEBSTER | 10 | St Felix Sch | 1:38.20 |
| 4 | 3 | Harry SWANN | 10 | Lstoft & OB | 1:34.73 |
| 5 | 2 | Jensen HOOLE | 10 | Deben | 1:40.61 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 5 | Robert ADDIS | 10 | West Norfolk | 1:39.28 |
| 2 | 7 | Louis ARMITAGE | 10 | Berkhamsted | 1:36.45 |
| 3 | 9 | Owen VAUGHAN | 10 | Chelmsford | 1:36.59 |
| 4 | 11 | Freddie SYMONDS | 11 | Team Luton | 1:33.20 |
| 5 | 10 | Finn JEFFERY | 10 | Colchester | 1:37.16 |
| 6 | 8 | Harrison JARVIS | 10 | Thurrock | 1:37.40 |
| 7 | 6 | Max MCAULIFFE | 10 | Harlow Pen | 1:42.10 |
| 8 | 4 | Callum STEDMAN | 10 | Dereham | 1:39.88 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 13 | Oliver CASHIN | 12 | Co Cambridge | 1:26.27 |
| 2 | 15 | Joseph RICHARDSON | 12 | Harpenden | 1:22.47 |
| 3 | 17 | Jack RICHES | 12 | UEA Norwich | 1:24.25 |
| 4 | 20 | Harvey NORMAN | 12 | Co Peterboro | 1:22.63 |
| 5 | 19 | Marcus KEMP | 12 | Watford SC | 1:23.61 |
| 6 | 16 | Maxim DE WILDT | 12 | Co Cambridge | 1:29.09 |
| 7 | 14 | Joe WELCH | 12 | Co Peterboro | 1:21.10 |
| 8 | 12 | Tommy CHANDLER | 11 | Norwich Swan | 1:28.00 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 25 | Daniel LUSH | 13 | Cheshunt | 1:24.16 |
| 2 | 32 | Harvey JOLLY | 13 | Basildon Ph | 1:24.32 |
| 3 | 38 | Oliver TAVERNER | 13 | Watford SC | 1:14.81 |
| 4 | 44 | Samuel PECK | 13 | UEA Norwich | 1:14.57 |
| 5 | 41 | Tom BEAGLEY | 13 | Deben | 1:14.12 |
| 6 | 35 | Thomas WIGGINS | 14 | Co Peterboro | 1:18.00 |
| 7 | 29 | Charles RAYNER | 13 | Hemel Hemp | 1:18.39 |
| 8 | 22 | Mason BRAND | 12 | Berkhamsted | 1:25.19 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 26 | Cole JAMES | 12 | Hatfield | 1:22.17 |
| 2 | 33 | Daniel HILL | 14 | Linslade | 1:18.95 |
| 3 | 39 | Cameron MANLEY | 14 | Linslade | 1:19.64 |
| 4 | 46 | Dominic SCIFO | 14 | teamipswich | 1:17.26 |
| 5 | 42 | Leyton BERREY | 14 | UEA Norwich | 1:14.26 |
| 6 | 36 | Ben HARRISON | 13 | Potters Bar | 1:17.83 |
| 7 | 30 | James MONCUR-BROWN | 13 | UEA Norwich | 1:17.69 |
| 8 | 23 | Joseph TALBOT | 13 | Linslade | 1:19.73 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 28 | Reese HOUSDEN | 12 | Hatfield | 1:16.95 |
| 2 | 34 | Joseph MURRAY | 14 | Putteridge | 1:17.96 |
| 3 | 40 | Zhi ONG | 14 | Co St Albans | 1:14.09 |
| 4 | 47 | Nathan HUGHES | 13 | Hatfield | 1:13.48 |
| 5 | 43 | Morgan NEWMAN | 13 | Potters Bar | 1:13.76 |
| 6 | 37 | Harry NICHOLLS | 13 | Basildon Ph | 1:18.33 |
| 7 | 31 | Llywelyn WAKE | 14 | Modernians | 1:18.02 |
| 8 | 24 | Harry LONGBOTTOM | 13 | Deben | 1:22.39 |