EVENT 526 Boys Open 100m Backstroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 2 | 1 | Joshua SADDINGTON | 10 | Swadlincote | |
| 3 | 3 | Alex JUNGMANN | 12 | Deepings | 1:51.72 |
| 4 | 5 | Dominic CURTIS | 10 | Bramcote | 1:50.00 |
| 5 | 4 | Julian CASEY | 10 | Braunstone | 1:50.00 |
| 6 | 2 | Jack FLINT | 10 | Bramcote | 1:54.55 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 7 | Oliver KANG | 10 | Co Leicester | 1:45.00 |
| 2 | 9 | Charles SNEESBY | 12 | Leicester Ne | 1:34.21 |
| 3 | 11 | Benjamin BOURNE | 12 | Coalville | 1:32.87 |
| 4 | 13 | Henry BARNETT | 14 | Deepings | 1:32.63 |
| 5 | 12 | Oliver OXLEY | 10 | Co Leicester | 1:32.68 |
| 6 | 10 | Sammy RAHIMZADEH | 11 | Nova Cent'n | 1:33.40 |
| 7 | 8 | Thomas CHAMBERLAIN | 12 | Loughborough | 1:41.19 |
| 8 | 6 | Benjamin ROWLEY | 10 | Shrewsbury | 1:49.31 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 15 | Henry SEWELL | 11 | Shrewsbury | 1:31.25 |
| 2 | 17 | Connor BYRON | 11 | Nova Cent'n | 1:29.70 |
| 3 | 19 | Jenson JOHNS | 10 | Co Leicester | 1:27.60 |
| 4 | 21 | Joseph BROWBANK | 11 | Co Leicester | 1:27.49 |
| 5 | 20 | Adam TILLEY | 13 | Co Leicester | 1:27.56 |
| 6 | 18 | Tyler BROWN | 11 | Mansfield | 1:29.10 |
| 7 | 16 | George LARKE | 12 | Loughborough | 1:29.76 |
| 8 | 14 | Edward SKELLS | 12 | South Lincs | 1:32.44 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 23 | Jake JUNGMANN | 13 | Deepings | 1:26.03 |
| 2 | 25 | Jack STRETTON | 12 | Co Leicester | 1:25.20 |
| 3 | 27 | Benjamin CLIFFE | 13 | Leicester Ne | 1:24.72 |
| 4 | 29 | Matthew JACKSON | 11 | Nova Cent'n | 1:23.25 |
| 5 | 28 | Connor WILCOX | 12 | Nova Cent'n | 1:24.00 |
| 6 | 26 | William CURTIS | 12 | Co Leicester | 1:24.75 |
| 7 | 24 | Sean MCCANN | 11 | Co Leicester | 1:25.78 |
| 8 | 22 | Francis BARNETT | 13 | Deepings | 1:26.46 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 31 | Joshua HEY | 14 | Corby | 1:22.10 |
| 2 | 33 | Evan MCWHIRTER | 11 | Co Coventry | 1:21.35 |
| 3 | 35 | Luke BLANCHARD | 15 | South Lincs | 1:17.85 |
| 4 | 37 | Kallum PENMAN | 14 | Deepings | 1:15.58 |
| 5 | 36 | Harry PRESTON | 13 | Leicester Ne | 1:17.63 |
| 6 | 34 | Lewis ROUNCE | 12 | Nova Cent'n | 1:20.34 |
| 7 | 32 | Jack LYNCH | 12 | Nuneaton | 1:21.62 |
| 8 | 30 | Miles HATCH | 12 | Co Leicester | 1:22.33 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 39 | Charlie KALETHA | 12 | Co Leicester | 1:15.18 |
| 2 | 41 | Luke CHAPMAN | 13 | Braunstone | 1:12.81 |
| 3 | 43 | Jonathan HARRISON | 15 | Coalville | 1:10.98 |
| 4 | 45 | Samuel WILKINSON | 16 | Melton M'bry | 1:10.62 |
| 5 | 44 | Thomas GREIG | 15 | Chesterfield | 1:10.82 |
| 6 | 42 | Rakshansingh PARMESSUR | 15 | Leicester Ne | 1:11.83 |
| 7 | 40 | Alexander CASEY | 12 | Co Leicester | 1:14.61 |
| 8 | 38 | Tom ROCHELLE | 13 | Melton M'bry | 1:15.26 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 47 | Colin O'REILLY | 17 | South Lincs | 1:09.07 |
| 2 | 49 | James DAVIES | 16 | Co Leicester | 1:07.10 |
| 3 | 51 | Thomas ROWLEY | 16 | Shrewsbury | 1:05.20 |
| 4 | 53 | Brendan O'KEEFE | 19 | Mansfield | 1:04.11 |
| 5 | 52 | Lynden HOLTOM-STOTT | 16 | Nuneaton | 1:04.64 |
| 6 | 50 | Maxwell KENDALL | 15 | Corby | 1:07.02 |
| 7 | 48 | Lucas TAYLOR | 15 | Braunstone | 1:08.55 |
| 8 | 46 | Finlay CHAPMAN | 15 | Braunstone | 1:09.40 |