EVENT 210 Open/Male 13/15 Yrs 100m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 2 | Grayson Watford | 13 | Wellingboro | 1:26.70 |
| 4 | 4 | Alex Lawrence | 13 | Daventry | 1:25.40 |
| 5 | 3 | Sui Chun Yip | 14 | Corby | 1:25.50 |
| 6 | 1 | Oliver Trenwith | 13 | Corby | 1:26.90 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 8 | Finley Stevenson | 15 | Corby | 1:23.40 |
| 2 | 14 | Callum Taylor | 15 | Northampton | 1:19.83 |
| 3 | 20 | James Oscroft | 13 | Northampton | 1:15.90 |
| 4 | 26 | George Yeomans | 15 | Rushden | 1:10.90 |
| 5 | 23 | T Nedelcu-Paveliuc | 14 | Wellingboro | 1:13.90 |
| 6 | 17 | Dmitrijs Bakulins | 15 | Wellingboro | 1:18.60 |
| 7 | 11 | Oscar Cutmore | 13 | Corby | 1:21.00 |
| 8 | 5 | Lucas Poole | 14 | Northampton | 1:25.40 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 9 | Joseph Bird | 13 | Northampton | 1:22.40 |
| 2 | 15 | Seth Gillies | 15 | Northampton | 1:19.60 |
| 3 | 21 | Ianis Mantoc | 13 | Corby | 1:15.40 |
| 4 | 27 | Aiden Horne | 14 | Corby | 1:10.20 |
| 5 | 24 | Oscar Venn | 14 | Northampton | 1:13.19 |
| 6 | 18 | Kushal Mistry | 15 | Northampton | 1:17.60 |
| 7 | 12 | Louis Pell | 15 | Northampton | 1:20.40 |
| 8 | 6 | Benjamin White | 15 | Rushden | 1:24.70 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 10 | Wojciech Latusek | 14 | Wellingboro | 1:22.10 |
| 2 | 16 | Eric Butans | 15 | Corby | 1:19.20 |
| 3 | 22 | Tommy Knipes | 15 | Northampton | 1:14.30 |
| 4 | 28 | Ryan Doyle | 15 | Kettering | 1:05.30 |
| 5 | 25 | Elliott Thomson | 14 | Daventry | 1:11.60 |
| 6 | 19 | Daniel Mustata | 15 | Corby | 1:16.12 |
| 7 | 13 | Jacob Quennell | 13 | Northampton | 1:20.20 |
| 8 | 7 | George Hatwood | 15 | Wellingboro | 1:24.30 |