EVENT 302 Mens MC 100m Backstroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 3 | 1 | Samuel Carter | 06 | S10 | Hoddesdon | 2:26.79 |
| 4 | 3 | James Garry | 02 | S9 | Mildenhall | 2:17.96 |
| 5 | 2 | Marcus Harvey | 05 | S14 | Littleh'pton | 2:25.57 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 1 | 4 | Connor Stuart | 03 | S6 | Co Cambridge | 2:15.96 |
| 2 | 6 | Cameron Connelly | 05 | S9 | Putteridge | 2:09.81 |
| 3 | 8 | Sebastian Williams | 04 | S6 | Barnet Copt | 2:06.36 |
| 4 | 10 | Cory Dakin | 02 | S7 | Co Cambridge | 1:55.16 |
| 5 | 9 | Cameron Hemphill | 03 | S10 | Incas | 2:05.25 |
| 6 | 7 | Jack Andersen | 05 | S6 | Co Peterboro | 2:06.62 |
| 7 | 5 | James Watson | 04 | S9 | Harrogate | 2:09.94 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 1 | 12 | Lewis Rushton | 04 | S9 | Rykneld | 1:48.39 |
| 2 | 14 | Joseph Greaves | 03 | S14 | Littleh'pton | 1:46.22 |
| 3 | 16 | Matthew Buckland | 01 | S8 | London Dis | 1:45.13 |
| 4 | 18 | Leo McCrea | 03 | S6 | Bourmth Coll | 1:42.97 |
| 5 | 17 | William Whitehead | 05 | S8 | Rotherham Mo | 1:43.61 |
| 6 | 15 | Jacob Chambers | 03 | S8 | Co Manch Aq | 1:45.56 |
| 7 | 13 | Alexander Hobbs | 05 | S7 | Mt Kelly | 1:46.24 |
| 8 | 11 | Kai Goldie | 05 | S9 | Kirkintilloc | 1:54.79 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 1 | 20 | Samuel Whearty | 02 | S9 | Colchester | 1:40.98 |
| 2 | 22 | Conor Freeman | 01 | S14 | Leic Peng | 1:36.67 |
| 3 | 24 | Steven McCormick | 01 | S9 | Fins | 1:34.02 |
| 4 | 26 | Ethan Naisbitt | 03 | S9 | Pioneer 79 | 1:31.93 |
| 5 | 25 | Maximilian Tulloch | 05 | S9 | Chalfont | 1:32.41 |
| 6 | 23 | Levi Codling | 04 | S7 | Coalville | 1:36.25 |
| 7 | 21 | Alexander Taylor | 01 | S10 | Harrogate | 1:37.43 |
| 8 | 19 | Rhys Gill | 02 | S9 | Ythan | 1:42.16 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 1 | 28 | Liam Hardy | 03 | S14 | Co Manch Aq | 1:29.96 |
| 2 | 30 | Joshua Fruin | 02 | S10 | Portsmouth N | 1:23.84 |
| 3 | 32 | Luke Batty | 05 | S9 | Bolton Metro | 1:23.20 |
| 4 | 34 | Ryan Potter | 03 | S14 | Blackpool Aq | 1:19.90 |
| 5 | 33 | Zackary Merritt | 02 | S15 | Donc Dartes | 1:20.31 |
| 6 | 31 | Angus Leckonby | 02 | S14 | Scarborough | 1:23.77 |
| 7 | 29 | Finlay Middleton | 02 | S8 | Mt Kelly | 1:25.79 |
| 8 | 27 | Balthazar Bradshaw | 06 | S10 | Chelsea&West | 1:30.42 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 1 | 36 | Ben Webster | 01 | S14 | Adwick | 1:18.47 |
| 2 | 38 | Kieran Williams | 04 | S10 | Newquay | 1:17.25 |
| 3 | 40 | Cameron Vearncombe | 02 | S14 | Caradon | 1:10.17 |
| 4 | 42 | George Kelman-Johns | 01 | S14 | Clayesmore | 1:06.48 |
| 5 | 41 | Jack Milne | 01 | S14 | Dun City Aqu | 1:09.46 |
| 6 | 39 | Benjamin Grainger | 03 | S10 | Io Man | 1:15.90 |
| 7 | 37 | Conor Ballard | 02 | S10 | Leatherhead | 1:17.28 |
| 8 | 35 | Christian Buchanan | 01 | S14 | Musselburgh | 1:18.80 |