EVENT 301 Mens MC 100m Backstroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 3 | 1 | Marlon Solomon | 06 | S8 | Hoddesdon | 2:33.42 |
| 4 | 3 | Asa Bebbington | 02 | S6 | Co Manch Aq | 2:13.35 |
| 5 | 2 | Bruce Dee | 06 | S6 | Northampton | 2:15.62 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 1 | 5 | James Garry | 02 | S9 | Mildenhall | 2:10.58 |
| 2 | 7 | Connor Stuart | 03 | S6 | Co Cambridge | 2:08.39 |
| 3 | 9 | Sebastian Williams | 04 | S6 | Barnet Copt | 2:00.78 |
| 4 | 11 | Lewis Jones | 06 | S9 | Littleh'pton | 1:55.35 |
| 5 | 10 | James Watson | 04 | S9 | Harrogate | 2:00.37 |
| 6 | 8 | Aidan Stanbrook | 07 | S10 | Durrington | 2:03.05 |
| 7 | 6 | Josh Coomer | 04 | S6 | Dover Life | 2:08.79 |
| 8 | 4 | Samuel Carter | 06 | S10 | Hoddesdon | 2:12.12 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 1 | 13 | Nathan Carrington | 07 | S15 | York City | 1:51.96 |
| 2 | 15 | Marcus Harvey | 05 | S14 | Littleh'pton | 1:42.14 |
| 3 | 17 | Alexander Hobbs | 05 | S7 | Mt Kelly | 1:39.24 |
| 4 | 19 | Leo McCrea | 03 | S6 | Bourmth Coll | 1:38.40 |
| 5 | 18 | Benny Romberg | 06 | S10 | Kingston Roy | 1:38.65 |
| 6 | 16 | Sam Downie | 06 | S9 | Musselburgh | 1:41.67 |
| 7 | 14 | Leo Pellow | 02 | S14 | St Ives Bay | 1:45.75 |
| 8 | 12 | Cameron Connelly | 05 | S9 | Putteridge | 1:51.98 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 1 | 21 | Jacob Chambers | 03 | S8 | Co Manch Aq | 1:34.14 |
| 2 | 23 | Zachary Tandy | 03 | S10 | Abertillery | 1:31.48 |
| 3 | 25 | Owen Woodrow | 01 | S8 | Co Norwich | 1:27.88 |
| 4 | 27 | Samuel Whearty | 02 | S9 | Colchester | 1:27.38 |
| 5 | 26 | Balthazar Bradshaw | 06 | S10 | Chelsea&West | 1:27.60 |
| 6 | 24 | Liam Hardy | 03 | S14 | Co Manch Aq | 1:29.96 |
| 7 | 22 | Benjamin Pope | 04 | S8 | Havant & Wat | 1:32.76 |
| 8 | 20 | William Whitehead | 05 | S8 | Rotherham Mo | 1:36.98 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 1 | 29 | Maximilian Tulloch | 05 | S9 | Chalfont | 1:26.87 |
| 2 | 31 | Levi Codling | 04 | S7 | Coalville | 1:25.96 |
| 3 | 33 | Luke Batty | 05 | S9 | Bolton Metro | 1:20.40 |
| 4 | 35 | Charlie Coulam | 03 | S10 | Bridlington | 1:19.79 |
| 5 | 34 | Angus Leckonby | 02 | S14 | Scarborough | 1:20.34 |
| 6 | 32 | Joseph Greaves | 03 | S14 | Littleh'pton | 1:25.95 |
| 7 | 30 | Ethan Naisbitt | 03 | S9 | Pioneer 79 | 1:26.45 |
| 8 | 28 | Owen Say | 01 | S8 | Bracknell | 1:27.19 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 1 | 37 | Ryan Potter | 03 | S14 | Blackpool Aq | 1:19.25 |
| 2 | 39 | Conor Ballard | 02 | S10 | Leatherhead | 1:16.43 |
| 3 | 41 | Kieran Williams | 04 | S10 | Newquay | 1:12.24 |
| 4 | 43 | George Kelman-Johns | 01 | S14 | Sborne Storm | 1:03.98 |
| 5 | 42 | Jack Milne | 01 | S14 | Dun City Aqu | 1:08.12 |
| 6 | 40 | Benjamin Grainger | 03 | S10 | Mt Kelly | 1:15.91 |
| 7 | 38 | Owen Garsides | 01 | S14 | KingstonHull | 1:17.93 |
| 8 | 36 | Dominic Redpath | 02 | S9 | Portsmouth N | 1:19.34 |