EVENT 104 Mens MC 100m Freestyle NAT - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 3 | 1 | Harvey Phillips | 04 | S4 | Louth | 2:13.83 |
| 4 | 3 | Levi Codling | 04 | S7 | Coalville | 1:37.52 |
| 5 | 2 | Sebastian Williams | 04 | S6 | Barnet Copt | 1:41.03 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 1 | 5 | Jacob Chambers | 03 | S8 | Co Manch Aq | 1:25.89 |
| 2 | 7 | Benjamin Pope | 04 | S8 | Havant & Wat | 1:19.22 |
| 3 | 9 | Nathaniel Costigan | 00 | S12 | Satellite | 1:18.30 |
| 4 | 11 | Leo McCrea | 03 | S6 | Bourmth Coll | 1:17.78 |
| 5 | 10 | Kian Saville | 00 | S10 | Daventry | 1:17.82 |
| 6 | 8 | Luke O'Dowd | 04 | S13 | South Dorset | 1:18.54 |
| 7 | 6 | Zach Washington-Young | 90 | S6 | Co Liverpool | 1:23.58 |
| 8 | 4 | Callum Robertson | 04 | S8 | Co Cambridge | 1:29.71 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 0 | 13 | Adam Donnachie | 00 | S8 | Eastkilbride | 1:16.82 |
| 1 | 15 | William Perry | 00 | S6 | Mt Kelly | 1:16.07 |
| 2 | 17 | Owen Woodrow | 01 | S8 | Co Norwich | 1:14.68 |
| 3 | 19 | Luke Batty | 05 | S9 | Bolton Metro | 1:14.18 |
| 4 | 21 | Matthew Clowes | 99 | S8 | Caradon | 1:12.23 |
| 5 | 20 | Ryan Potter | 03 | S14 | Blackpool Aq | 1:12.28 |
| 6 | 18 | Ethan Naisbitt | 03 | S9 | Pioneer 79 | 1:14.44 |
| 7 | 16 | Conor Freeman | 01 | S14 | Leic Peng | 1:15.44 |
| 8 | 14 | Maximilian Tulloch | 05 | S9 | Chalfont | 1:16.48 |
| 9 | 12 | Roan Brennan | 06 | S9 | Basildon Ph | 1:16.82 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 0 | 25 | Owen Say | 01 | S8 | Bracknell | 1:10.25 |
| 1 | 31 | Dominic Redpath | 02 | S9 | Portsmouth N | 1:05.18 |
| 2 | 37 | Joshua Fairchild | 98 | S14 | Co Coventry | 1:04.16 |
| 3 | 43 | Cameron Vearncombe | 02 | S14 | Newquay | 1:01.35 |
| 4 | 49 | George Kelman-Johns | 01 | S14 | Clayesmore | 56.97 |
| 5 | 46 | Callum Pearson | 96 | S10 | Hastings | 1:00.89 |
| 6 | 40 | Adam Roebuck | 00 | S14 | Caradon | 1:02.77 |
| 7 | 34 | Kieran Williams | 04 | S10 | Newquay | 1:05.07 |
| 8 | 28 | Finlay Middleton | 02 | S8 | Mt Kelly | 1:07.34 |
| 9 | 22 | Rhys Gill | 02 | S9 | Ythan | 1:12.04 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 0 | 26 | Reilly Shanahan | 00 | S9 | Shrewsbury | 1:09.77 |
| 1 | 32 | Owen Garsides | 01 | S14 | KingstonHull | 1:05.12 |
| 2 | 38 | Conor Ballard | 02 | S10 | Leatherhead | 1:04.09 |
| 3 | 44 | Tom Piggott | 00 | S10 | Oswestry Ott | 1:01.26 |
| 4 | 50 | Louis Lawlor | 02 | S14 | Co Glasgow | 56.14 |
| 5 | 47 | Matthew Redfern | 98 | S13 | Worcester | 59.22 |
| 6 | 41 | Adam Whyborne | 01 | S10 | Billingham | 1:01.94 |
| 7 | 35 | George Eldredge | 01 | S14 | Brompton | 1:04.94 |
| 8 | 29 | Evan Holt | 03 | S14 | Cockermouth | 1:06.45 |
| 9 | 23 | Scott Hadley | 98 | S8 | Orion | 1:10.87 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 0 | 27 | Joseph Greaves | 03 | S14 | Littleh'pton | 1:09.32 |
| 1 | 33 | Caleb Grace | 98 | S14 | Littleh'pton | 1:05.08 |
| 2 | 39 | Angus Leckonby | 02 | S14 | Scarborough | 1:03.47 |
| 3 | 45 | James Edwards | 99 | S14 | Calne Alpha | 1:01.12 |
| 4 | 51 | Dylan Broom | 02 | S14 | Torfaen D | 55.24 |
| 5 | 48 | Rhys Davies | 01 | S14 | Pembs Cty | 58.02 |
| 6 | 42 | Jon Law | 97 | S13 | UniOfStirl | 1:01.73 |
| 7 | 36 | Charlie Coulam | 03 | S10 | Bridlington | 1:04.69 |
| 8 | 30 | Connor Boyfield | 98 | S9 | Boston | 1:06.17 |
| 9 | 24 | Peter Harper | 98 | S14 | Marlborough | 1:10.68 |