EVENT 404 Mens MC 100m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 3 | 1 | Tilemachos Pantazidis | 04 | S9 | Greece | 1:55.00 |
| 4 | 2 | Rafail Maladakis | 02 | S10 | Greece | 1:35.00 |
| 5 | 3 | Marco Meneses | 01 | S11 | Portugal | 1:29.38 |
| 6 | 4 | Noi Mimetta | 03 | S13 | Thailand | 1:26.96 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 0 | 5 | Ethan Naisbitt | 03 | S9 | Pioneer 79 | 1:25.82 |
| 1 | 6 | Maximilian Tulloch | 05 | S9 | Chalfont | 1:25.33 |
| 2 | 7 | Luis Sanchez Barajas | 96 | S9 | Mexico | 1:23.43 |
| 3 | 8 | Sam De Visser | 03 | S9 | Belgium | 1:23.29 |
| 4 | 9 | Johannes Weinberg | 02 | S11 | Germany | 1:23.12 |
| 5 | 10 | Scott Hadley | 98 | S8 | Orion | 1:23.04 |
| 6 | 11 | Balthazar Bradshaw | 06 | S10 | Brompton | 1:20.62 |
| 7 | 12 | Liam Hardy | 03 | S14 | Co Manch Aq | 1:20.60 |
| 8 | 13 | Bowen Zhang | 00 | S11 | China | 1:20.00 |
| 9 | 14 | Luke Batty | 05 | S9 | Bolton Metro | 1:19.99 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 0 | 15 | Matthew Scott | 99 | S14 | Bridge O Don | 1:19.32 |
| 1 | 16 | Aaron Putz | 96 | S14 | South Africa | 1:14.60 |
| 2 | 17 | Sean O'Riordan | 99 | S13 | Ireland | 1:14.49 |
| 3 | 18 | Jacob Liam Leach | 00 | S9 | COKN - GBR | 1:14.47 |
| 4 | 19 | George Eldredge | 01 | S14 | London Dis | 1:14.35 |
| 5 | 20 | Charlie Coulam | 03 | S10 | Bridlington | 1:14.34 |
| 6 | 21 | Xianquan Huang | 99 | S8 | China | 1:14.34 |
| 7 | 22 | Joshua Fairchild | 98 | S14 | Co Coventry | 1:13.75 |
| 8 | 23 | Taneli Harkonen | 97 | S14 | Finland | 1:13.71 |
| 9 | 24 | Kaimar Kaldma | 86 | S12 | Estonia | 1:13.12 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 0 | 25 | Logan Smith | 03 | S14 | Motherwell W | 1:12.75 |
| 1 | 26 | Angus Leckonby | 02 | S14 | Scarborough | 1:11.90 |
| 2 | 27 | Dylan Bleakley | 03 | S14 | Musselburgh | 1:11.79 |
| 3 | 28 | Justin Kaps | 01 | S10 | Germany | 1:11.59 |
| 4 | 29 | Joshua Monaghan-Coombs | 98 | S9 | Bath Univ | 1:11.46 |
| 5 | 30 | Gavin Roberts | 99 | S14 | WCGX - GBR | 1:11.20 |
| 6 | 31 | J Labrador Fernandez | 01 | S14 | Spain | 1:10.35 |
| 7 | 32 | Matthis Daniel | 98 | S14 | France | 1:10.30 |
| 8 | 33 | Simon Blaise | 96 | S14 | France | 1:10.00 |
| 9 | 34 | Owen Garsides | 01 | S14 | KingstonHull | 1:09.31 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 0 | 35 | Patryk Biskup | 98 | S9 | Poland | 1:09.12 |
| 1 | 36 | Felix-Ulli Fichtelmann | 01 | S9 | Germany | 1:08.16 |
| 2 | 37 | Jonas Kesnar | 01 | S9 | Czech Rep | 1:08.15 |
| 3 | 38 | Jarno Thierens | 98 | S10 | Belgium | 1:08.09 |
| 4 | 39 | O Salguero Galisteo | 98 | S9 | Spain | 1:08.09 |
| 5 | 40 | Diogo Cancela | 02 | S8 | Portugal | 1:07.98 |
| 6 | 41 | Taliso Engel | 02 | S13 | Germany | 1:07.96 |
| 7 | 42 | Fraidden Dawan | 86 | S10 | Malaysia | 1:07.66 |
| 8 | 43 | Yasuhiro Tanaka | 89 | S14 | Japan | 1:07.22 |
| 9 | 44 | Jonathan Booth | 98 | S9 | BOKE - GBR | 1:07.12 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 0 | 45 | Zhihua Zhou | 93 | S8 | China | 1:07.00 |
| 1 | 46 | Aymeric Parmentier | 93 | S14 | Belgium | 1:06.86 |
| 2 | 47 | Oliver Carter | 00 | S10 | WUSX - GBR | 1:06.80 |
| 3 | 48 | Jon Law | 97 | S13 | UniOfStirl | 1:06.75 |
| 4 | 49 | Tom Piggott | 00 | S10 | Oswestry Ott | 1:06.56 |
| 5 | 50 | Robin Liksor | 99 | S9 | Estonia | 1:06.21 |
| 6 | 51 | Matthew Redfern | 98 | S13 | Worcester | 1:05.88 |
| 7 | 52 | Nathan Maillet | 98 | S14 | France | 1:05.84 |
| 8 | 53 | Leo Lahteenmaki | 91 | S9 | Finland | 1:05.57 |
| 9 | 54 | Scott Quin | 90 | S14 | EWBX - GBR | 1:05.26 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 0 | 55 | Malte Braunschweig | 00 | S9 | Germany | 1:05.24 |
| 1 | 56 | Jieqiu Deng | 98 | S12 | China | 1:04.88 |
| 2 | 57 | Nader Khalili | 01 | S14 | Finland | 1:04.85 |
| 3 | 58 | Conner Morrison | 97 | S14 | NDAX - GBR | 1:04.76 |
| 4 | 59 | Tadeas Strasik | 00 | S10 | Czech Rep | 1:04.66 |
| 5 | 60 | Michal Golus | 95 | S8 | Poland | 1:04.47 |
| 6 | 61 | Louis Lawlor | 02 | S14 | WCGX - GBR | 1:04.02 |
| 7 | 62 | George Kelman-Johns | 01 | S14 | SBOW - GBR | 1:03.96 |
| 8 | 63 | Naohide Yamaguchi | 00 | S14 | Japan | 1:03.76 |
| 9 | 64 | Conor Ballard | 02 | S10 | Leatherhead | 1:03.55 |
| Heat Number - 8 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 0 | 65 | Alex Rosser | 96 | S14 | TDOY - GBR | 1:03.36 |
| 1 | 66 | Antti Antero Latikka | 90 | S13 | Finland | 1:03.13 |
| 2 | 67 | Fengqi Liu | 99 | S8 | China | 1:02.99 |
| 3 | 68 | Barry McClements | 01 | S9 | Ireland | 1:02.93 |
| 4 | 69 | Uchu Tomita | 89 | S11 | Japan | 1:02.68 |
| 5 | 70 | Rhys Davies | 01 | S14 | PEMY - GBR | 1:02.65 |
| 6 | 71 | Jack Milne | 01 | S14 | MDCX - GBR | 1:02.44 |
| 7 | 72 | Vali Israfilov | 02 | S12 | Azerbaijan | 1:02.37 |
| 8 | 73 | Ludvig Nyren | 97 | S10 | Sweden | 1:01.42 |
| 9 | 74 | Jose Mari Alcaraz | 88 | S9 | Spain | 1:01.15 |
| Heat Number - 9 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 0 | 75 | Cameron Vearncombe | 02 | S14 | Newquay | 1:00.68 |
| 1 | 76 | Jordan Catchpole | 99 | S14 | NORT - GBR | 1:00.16 |
| 2 | 77 | Raman Salei | 94 | S12 | Azerbaijan | 1:00.00 |
| 3 | 78 | Robert Isak Jonsson | 01 | S14 | Iceland | 59.61 |
| 4 | 79 | Tyler Ioannou | 98 | S14 | WYCS - GBR | 59.18 |
| 5 | 80 | David Levecq | 84 | S10 | Spain | 58.91 |
| 6 | 81 | Dai Tokairin | 99 | S14 | Japan | 58.06 |
| 7 | 82 | Stephen Clegg | 95 | S12 | SUNE - GBR | 57.97 |
| 8 | 83 | Keichi Nakajima | 98 | S14 | Japan | 57.66 |
| 9 | 84 | Reece Dunn | 95 | S14 | PLYW - GBR | 56.19 |