EVENT 408 Mens MC 100m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 4 | Maximilian Tulloch | 14 | S9 | Chalfont | 1:28.66 |
| 2 | 8 | Liam Hardy | 16 | S14 | Co Manch Aq | 1:19.53 |
| 3 | 12 | Ryan Potter | 16 | S14 | Blackpool Aq | 1:14.37 |
| 4 | 16 | Owen Garsides | 18 | S14 | KingstonHull | 1:08.93 |
| 5 | 14 | Joshua Fairchild | 21 | S14 | Co Coventry | 1:13.17 |
| 6 | 10 | Andrew Keeler | 23 | S14 | Devonport | 1:14.80 |
| 7 | 6 | Scott Hadley | 21 | S8 | Orion | 1:23.23 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 0 | 2 | Harvey Stonebank | 15 | S14 | RichmondDale | 1:30.94 |
| 1 | 5 | Peter Harper | 21 | S14 | Marlborough | 1:26.19 |
| 2 | 9 | Roan Brennan | 13 | S9 | Basildon Ph | 1:14.86 |
| 3 | 13 | Charlie Coulam | 16 | S10 | Bridlington | 1:13.88 |
| 4 | 17 | Callum Pearson | 23 | S10 | Hastings | 1:05.83 |
| 5 | 15 | Joe Seage | 20 | S14 | Bassetlaw SS | 1:09.19 |
| 6 | 11 | Angus Leckonby | 17 | S14 | Scarborough | 1:14.60 |
| 7 | 7 | Evan Holt | 16 | S14 | Cockermouth | 1:19.87 |
| 8 | 3 | Ethan Naisbitt | 16 | S9 | Pioneer 79 | 1:29.72 |
| 9 | 1 | Reilly Shanahan | 19 | S9 | Shrewsbury | 1:37.01 |