EVENT 104 Boys 11/13 Yrs 100m Breaststroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 3 | 2 | Tyler Brown | 12 | Nova Cent'n | 1:33.24 |
| 4 | 4 | Harry Wakelin | 12 | Sutton | 1:33.10 |
| 5 | 3 | Charlie Canavan | 12 | Nova Cent'n | 1:33.20 |
| 6 | 1 | Max Davies | 12 | Nova Cent'n | 1:33.43 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 6 | Kyren Goodwin | 11 | Worksop | 1:32.80 |
| 2 | 8 | Willem Kloosterboer | 11 | Louth | 1:32.45 |
| 3 | 10 | Isaac Caddy | 12 | Derventio | 1:32.30 |
| 4 | 12 | Lucas Ellis | 11 | Nova Cent'n | 1:32.01 |
| 5 | 11 | Jamie Green | 12 | Co Lincoln P | 1:32.07 |
| 6 | 9 | Joel Sharman | 12 | Leic Sharks | 1:32.36 |
| 7 | 7 | Sebastian Lee | 11 | Co Derby | 1:32.68 |
| 8 | 5 | Reuben Mason | 12 | Co Derby | 1:33.10 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 14 | Nicholas Skinner | 11 | BelperMarlin | 1:31.41 |
| 2 | 16 | Elliot Sibley | 12 | Nova Cent'n | 1:30.04 |
| 3 | 18 | Rico Bringeman | 12 | Boston | 1:29.22 |
| 4 | 20 | Lewis Brown | 12 | Derventio | 1:28.16 |
| 5 | 19 | Oliver Gillott | 11 | Dronfield | 1:28.90 |
| 6 | 17 | George Whittle | 11 | Derventio | 1:29.80 |
| 7 | 15 | Reuben Heywood | 12 | Louth | 1:31.20 |
| 8 | 13 | Thomas Dixon | 12 | Braunstone | 1:31.67 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 24 | Billy Reed | 12 | Grantham | 1:25.35 |
| 2 | 30 | Samual Nicholls | 13 | Chesterfield | 1:24.20 |
| 3 | 36 | Luca Tramontano | 13 | Rykneld | 1:20.39 |
| 4 | 42 | John-Petre Vassilev-Ne | 13 | Co Derby | 1:15.19 |
| 5 | 39 | Alexander Casey | 13 | Co Leicester | 1:18.47 |
| 6 | 33 | Younis Peach | 13 | Northampton | 1:23.80 |
| 7 | 27 | Tobey Baker | 13 | Chesterfield | 1:25.05 |
| 8 | 21 | Michael Senior | 12 | Nova Cent'n | 1:26.50 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 25 | James Danson | 12 | Nova Cent'n | 1:25.20 |
| 2 | 31 | Finley Bunhejee | 12 | Nova Cent'n | 1:23.90 |
| 3 | 37 | Finlay Moss | 13 | Long Eaton | 1:18.85 |
| 4 | 43 | Jacob Whittle | 13 | Derventio | 1:15.10 |
| 5 | 40 | Brandon Hotham | 13 | Chesterfield | 1:18.28 |
| 6 | 34 | Jack Taylor | 13 | Leic Sharks | 1:23.78 |
| 7 | 28 | Joseph Lund | 13 | Deepings | 1:24.94 |
| 8 | 22 | Alexander Cheung | 13 | Arnold | 1:25.60 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 26 | George Larke | 13 | Loughborough | 1:25.07 |
| 2 | 32 | Harrison Casey | 13 | Eckington | 1:23.89 |
| 3 | 38 | Nathan Allen | 13 | Co Leicester | 1:18.76 |
| 4 | 44 | Harvey Freeman | 13 | Northampton | 1:13.50 |
| 5 | 41 | Hosea Waweru | 13 | Co Leicester | 1:18.10 |
| 6 | 35 | Samuel Smith | 12 | Northampton | 1:22.10 |
| 7 | 29 | Benjamin Hodkinson | 13 | Worksop | 1:24.60 |
| 8 | 23 | Connor Wilcox | 13 | Nova Cent'n | 1:25.50 |