EVENT 105 Open/Male 10 /Over 50m Backstroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Thomas Armstrong | 11 | Melton M'bry | 45.55 |
| 4 | 3 | Benjamin Drew | 10 | Loughborough | 44.22 |
| 5 | 2 | Lewis Ashbridge | 11 | Melton M'bry | 44.60 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 5 | Hugo Brailsford | 11 | Deepings | 43.83 |
| 3 | 7 | Clark Power | 11 | Co Leicester | 42.18 |
| 4 | 9 | Vadim Obuhov | 10 | Co Leicester | 41.94 |
| 5 | 8 | Gregory Cross | 12 | Melton M'bry | 42.02 |
| 6 | 6 | Oscar Cookson | 11 | Bassetlaw SS | 43.12 |
| 7 | 4 | Spencer Cross | 10 | Melton M'bry | 43.90 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 11 | George Howard | 11 | Loughborough | 40.84 |
| 2 | 13 | Tudor Taman | 13 | Leic Peng | 39.59 |
| 3 | 15 | Albert Haile | 13 | Louth | 38.56 |
| 4 | 17 | Thomas Vere | 11 | South Lincs | 37.32 |
| 5 | 16 | Hugo Morgan-Gibbins | 12 | Co Leicester | 38.33 |
| 6 | 14 | Warwick Davies | 11 | Co Leicester | 39.27 |
| 7 | 12 | Ashton Anderson | 11 | Northampton | 39.60 |
| 8 | 10 | Finnley Stevenson | 11 | Loughborough | 41.25 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 19 | Daniil Obuhov | 12 | Co Leicester | 36.54 |
| 2 | 21 | William Kite | 16 | Louth | 32.14 |
| 3 | 23 | Lucas Moxon-Booth | 16 | Flitwick | 31.40 |
| 4 | 25 | Gabriel Corbett | 15 | Co Leicester | 30.95 |
| 5 | 24 | Jayman Lau | 15 | Loughborough | 31.30 |
| 6 | 22 | Victor Bramley-Howell | 15 | Co Leicester | 31.50 |
| 7 | 20 | Jack Michael | 14 | Leic Peng | 34.40 |
| 8 | 18 | Clayton Christensen | 14 | Melton M'bry | 36.97 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 27 | Matthew Tompkinson | 16 | Louth | 30.00 |
| 2 | 29 | Bradley Holland | 17 | South Lincs | 28.95 |
| 3 | 31 | Christopher Emberlin | 18 | Lboro Uni | 27.60 |
| 4 | 33 | Harrison Shaw | 18 | Flitwick | 27.39 |
| 5 | 32 | Carlos Sierra Villegas | 17 | Chesterfield | 27.50 |
| 6 | 30 | Layton Annison-Snowden | 16 | Louth | 28.46 |
| 7 | 28 | William Lancashire | 15 | Co Leeds | 29.57 |
| 8 | 26 | Reuben Meadows | 15 | Bassetlaw SS | 30.60 |