EVENT 102 Boys 11/13 Yrs 100m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 3 | 2 | Daniel Kennedy | 12 | Co Leicester | 1:23.27 |
| 4 | 4 | Tobey Baker | 12 | Chesterfield | 1:23.14 |
| 5 | 3 | James Dobney | 12 | Grantham | 1:23.18 |
| 6 | 1 | Michael Senior | 11 | Nova Cent'n | 1:23.50 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 6 | Ben Cuthill | 12 | Arnold | 1:22.98 |
| 2 | 8 | Owen Harding | 12 | Nova Cent'n | 1:22.31 |
| 3 | 10 | Joseph Lund | 12 | Deepings | 1:21.31 |
| 4 | 12 | Callum Lees | 12 | Grantham | 1:20.39 |
| 5 | 11 | Samual Nicholls | 12 | Chesterfield | 1:20.80 |
| 6 | 9 | Rico Bringeman | 11 | Boston | 1:21.90 |
| 7 | 7 | Nat Miller-Walters | 12 | Co Derby | 1:22.81 |
| 8 | 5 | Abraham Peace | 12 | Hinckley | 1:23.07 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 14 | Liam Dawson | 11 | Ripley | 1:19.68 |
| 2 | 16 | Brandon Smith | 12 | Gainsborough | 1:19.02 |
| 3 | 18 | Billy Reed | 11 | Grantham | 1:18.97 |
| 4 | 20 | Adam Tilley | 13 | Co Leicester | 1:17.53 |
| 5 | 19 | Jack Robinson | 11 | Boston | 1:18.72 |
| 6 | 17 | Thomas Currie | 12 | Northampton | 1:19.00 |
| 7 | 15 | Jake Lee | 12 | Nova Cent'n | 1:19.50 |
| 8 | 13 | Thomas Brompton | 12 | Co Derby | 1:20.03 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 22 | Matthew Fearn | 13 | Nova Cent'n | 1:17.40 |
| 2 | 24 | Jody Gillott | 11 | Nova Cent'n | 1:17.30 |
| 3 | 26 | Finley Bunhejee | 11 | Nova Cent'n | 1:17.00 |
| 4 | 28 | Benjamin Pierpoint | 13 | Nova Cent'n | 1:16.10 |
| 5 | 27 | Bradley Knight | 12 | Leic Sharks | 1:16.25 |
| 6 | 25 | Younis Peach | 12 | Northampton | 1:17.00 |
| 7 | 23 | Callum Kettlewell | 12 | Nova Cent'n | 1:17.40 |
| 8 | 21 | Adam Banks | 13 | Derventio | 1:17.50 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 32 | Matthew Woodhall | 12 | Nova Cent'n | 1:15.20 |
| 2 | 38 | Brandon Hotham | 12 | Chesterfield | 1:14.04 |
| 3 | 44 | Frankie Aldridge | 13 | Co Leicester | 1:12.55 |
| 4 | 50 | Jack Gartside | 13 | Northampton | 1:08.00 |
| 5 | 47 | Joseph Kingsland | 13 | Nova Cent'n | 1:11.30 |
| 6 | 41 | Charlie Kaletha | 12 | Co Leicester | 1:13.57 |
| 7 | 35 | Bradley Evans | 13 | Long Eaton | 1:14.89 |
| 8 | 29 | Austin Johns | 12 | Co Leicester | 1:15.95 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 33 | Edward Durham | 13 | Nova Cent'n | 1:14.90 |
| 2 | 39 | James Cox | 12 | Nova Cent'n | 1:13.84 |
| 3 | 45 | Joey Tippin | 13 | Leic Peng | 1:11.87 |
| 4 | 51 | Jimi Knowles | 13 | Nova Cent'n | 1:05.20 |
| 5 | 48 | Luca De Zilva | 13 | Leic Sharks | 1:10.90 |
| 6 | 42 | Kai Bacon | 13 | Co Leicester | 1:13.44 |
| 7 | 36 | William Beasley | 13 | Co Leicester | 1:14.70 |
| 8 | 30 | Razvan Grumazescu | 12 | Northampton | 1:15.70 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 34 | Ben Willison | 13 | Northampton | 1:14.90 |
| 2 | 40 | Joseph Vickers | 11 | Boston | 1:13.66 |
| 3 | 46 | Joseph Sadler | 13 | Nova Cent'n | 1:11.50 |
| 4 | 52 | Edward Mildred | 13 | Northampton | 1:01.20 |
| 5 | 49 | Patrick Mahney | 13 | Northampton | 1:08.10 |
| 6 | 43 | Oliver Crane | 12 | Co Leicester | 1:13.22 |
| 7 | 37 | Andrew Hall | 13 | Nova Cent'n | 1:14.25 |
| 8 | 31 | Thomas Deeley | 13 | Nova Cent'n | 1:15.27 |