EVENT 404 Men MC 100m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | YoB | Cat | Club | Time |
| 3 | 1 | Jan SCHREIBER | 01 | S10 | Germany | |
| 4 | 2 | Jake WOODS | 92 | S9 | Co Glasgow | 1:30.48 |
| 5 | 3 | Akaash DAS | 08 | S8 | Oswestry Ott | 1:29.62 |
| 6 | 4 | Aidan STANBROOK | 07 | S10 | Winchester | 1:27.01 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | YoB | Cat | Club | Time |
| 0 | 5 | Lewis JONES | 06 | S9 | Littleh'pton | 1:24.31 |
| 1 | 6 | Matthew DAVIES | 04 | S9 | RomseyTotton | 1:23.97 |
| 2 | 7 | Jacob WOOD | 06 | S9 | Gloucester | 1:22.71 |
| 3 | 8 | Ethan NAISBITT | 03 | S9 | Co Manch Aq | 1:21.12 |
| 4 | 9 | Zachary LACEY | 00 | S14 | Seaclose | 1:20.00 |
| 5 | 10 | Luke BATTY | 05 | S9 | GBR - BTMN | 1:17.04 |
| 6 | 11 | Matthew SCOTT | 99 | S14 | Bridge O Don | 1:15.62 |
| 7 | 12 | Darren PAREDES-FLORES | 05 | S10 | Bo Newham | 1:14.96 |
| 8 | 13 | Andrew BEHARIE | 03 | S14 | Blyth | 1:14.74 |
| 9 | 14 | Zack STURGESS | 07 | S10 | S Bournem'th | 1:14.68 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | YoB | Cat | Club | Time |
| 0 | 15 | Felix COWAN | 02 | S8 | Canada | 1:13.96 |
| 1 | 16 | Balthazar BRADSHAW | 06 | S10 | Brompton | 1:12.31 |
| 2 | 17 | Zach ZONA | 98 | S8 | Canada | 1:10.86 |
| 3 | 18 | Inigo LLOPIS SANZ | 98 | S8 | Spain | 1:07.97 |
| 4 | 19 | Aymeric PARMENTIER | 93 | S14 | Belgium | 1:07.92 |
| 5 | 20 | Dylan BLEAKLEY | 03 | S14 | East Lothian | 1:06.80 |
| 6 | 21 | Caleb ARNDT | 02 | S13 | Canada | 1:06.52 |
| 7 | 22 | Rio ROGERS | 04 | S14 | Basildon Ph | 1:05.15 |
| 8 | 23 | Owen GARSIDES | 01 | S14 | KingstonHull | 1:04.85 |
| 9 | 24 | Oliver CARTER | 00 | S10 | GBR - WUSX | 1:04.34 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | YoB | Cat | Club | Time |
| 0 | 25 | Joseph GREAVES | 03 | S14 | Littleh'pton | 1:04.25 |
| 1 | 26 | Justin KAPS | 01 | S10 | Germany | 1:03.34 |
| 2 | 27 | George KELMAN-JOHNS | 01 | S14 | GBR - GLOW | 1:03.33 |
| 3 | 28 | Barry MCCLEMENTS | 01 | S9 | Ireland | 1:02.00 |
| 4 | 29 | Jack MILNE | 01 | S14 | GBR - MDCX | 1:01.57 |
| 5 | 30 | Cameron VEARNCOMBE | 02 | S14 | Plymouth Lea | 1:01.46 |
| 6 | 31 | James HOLLIS | 94 | S10 | GBR - LCLA | 58.50 |
| 7 | 32 | Robert Isak JONSSON | 01 | S14 | Iceland | 58.06 |
| 8 | 33 | Stephen CLEGG | 95 | S12 | GBR - EEUX | 56.75 |
| 9 | 34 | Reece DUNN | 95 | S14 | GBR - PLYW | 54.46 |