EVENT 204 Mens MC 50m Freestyle NAT - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 0 | 1 | Harvey Phillips | 04 | S4 | Louth | 1:02.29 |
| 1 | 3 | Sebastian Williams | 04 | S6 | Barnet Copt | 46.52 |
| 2 | 5 | Jacob Chambers | 03 | S8 | Co Manch Aq | 39.17 |
| 3 | 7 | Zach Washington-Young | 90 | S6 | Co Liverpool | 38.36 |
| 4 | 9 | Adam Donnachie | 00 | S8 | Eastkilbride | 36.04 |
| 5 | 8 | Callum Robertson | 04 | S8 | Co Cambridge | 38.11 |
| 6 | 6 | William Whitehead | 05 | S8 | Rotherham Mo | 38.46 |
| 7 | 4 | Robin Surgeoner | 63 | S6 | Orion | 42.08 |
| 8 | 2 | Bruce Dee | 06 | S6 | Northampton | 47.19 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 0 | 13 | Leo McCrea | 03 | S6 | Bourmth Coll | 34.48 |
| 1 | 19 | Maximilian Tulloch | 05 | S9 | Chalfont | 33.91 |
| 2 | 25 | Rhys Gill | 02 | S9 | Ythan | 32.75 |
| 3 | 31 | Kyle Hughes | 01 | S9 | Motherwell W | 30.19 |
| 4 | 37 | Jon Law | 97 | S13 | UniOfStirl | 27.39 |
| 5 | 34 | Charlie Coulam | 03 | S10 | Bridlington | 29.01 |
| 6 | 28 | Dominic Redpath | 02 | S9 | Portsmouth N | 30.25 |
| 7 | 22 | Owen Woodrow | 01 | S8 | Co Norwich | 33.61 |
| 8 | 16 | Ethan Naisbitt | 03 | S9 | Pioneer 79 | 34.11 |
| 9 | 10 | Nathaniel Costigan | 00 | S12 | Satellite | 35.63 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 0 | 14 | Luke O'Dowd | 04 | S13 | South Dorset | 34.40 |
| 1 | 20 | William Perry | 00 | S6 | Mt Kelly | 33.84 |
| 2 | 26 | Owen Say | 01 | S8 | Bracknell | 32.33 |
| 3 | 32 | James Brown | 02 | S9 | Bilston | 30.13 |
| 4 | 38 | Callum Pearson | 96 | S10 | Hastings | 27.07 |
| 5 | 35 | Tom Piggott | 00 | S10 | Oswestry Ott | 28.84 |
| 6 | 29 | Finlay Middleton | 02 | S8 | Mt Kelly | 30.24 |
| 7 | 23 | Scott Hadley | 98 | S8 | Orion | 33.24 |
| 8 | 17 | Matthew Clowes | 99 | S8 | Caradon | 33.93 |
| 9 | 11 | Matthew Harding | 99 | S6 | Wirral Metro | 35.19 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 0 | 15 | Luke Batty | 05 | S9 | Bolton Metro | 34.29 |
| 1 | 21 | Roan Brennan | 06 | S9 | Basildon Ph | 33.72 |
| 2 | 27 | Connor Boyfield | 98 | S9 | Boston | 30.32 |
| 3 | 33 | Conor Ballard | 02 | S10 | Leatherhead | 29.92 |
| 4 | 39 | Matthew Redfern | 98 | S13 | Worcester | 26.88 |
| 5 | 36 | Adam Whyborne | 01 | S10 | Billingham | 28.14 |
| 6 | 30 | Kieran Williams | 04 | S10 | Newquay | 30.19 |
| 7 | 24 | Reilly Shanahan | 00 | S9 | Shrewsbury | 33.07 |
| 8 | 18 | Kian Saville | 00 | S10 | Daventry | 33.92 |
| 9 | 12 | Benjamin Pope | 04 | S8 | Havant & Wat | 35.07 |