EVENT 404 Mens MC 400m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 1 | 2 | Fraidden Dawan | 86 | S10 | Malaysia | |
| 2 | 4 | Matthew Harding | 99 | S6 | Wirral Metro | 6:58.07 |
| 3 | 6 | Adam Donnachie | 00 | S8 | Blantyre | 6:38.26 |
| 4 | 8 | Thomas Urry | 94 | S7 | Kingston Roy | 6:20.09 |
| 5 | 7 | Daniel Chetwood | 02 | S10 | Hoylake | 6:34.93 |
| 6 | 5 | Matthew Clowes | 99 | S8 | Bodmin | 6:43.87 |
| 7 | 3 | Gareth Picken | 99 | S7 | Gloucester | 7:28.33 |
| 8 | 1 | Julius Jaranding | 86 | S13 | Malaysia | |
| Heat Number - 2 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 0 | 10 | Craig Smith | 97 | S8 | Fife Perform | 6:14.08 |
| 1 | 12 | Matthew Rishworth | 02 | S10 | Staines | 6:01.74 |
| 2 | 14 | Matthew Phillips | 00 | S9 | Guildford Ct | 5:54.48 |
| 3 | 16 | Tim Van Duuren | 98 | S9 | Netherlands | 5:50.80 |
| 4 | 18 | Tom Piggott | 00 | S10 | Shrewsbury | 5:45.02 |
| 5 | 17 | Daniel Bennett | 96 | S8 | Gloucester | 5:47.07 |
| 6 | 15 | Patrick Flanagan | 97 | S8 | Ireland | 5:52.84 |
| 7 | 13 | Damian Ng | 90 | S7 | Maidenhead | 5:55.06 |
| 8 | 11 | Andreas Onea | 92 | S8 | Austria | 6:06.40 |
| 9 | 9 | Adam Scott | 97 | S8 | Nairn | 6:14.20 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 0 | 20 | Joshua Monaghan-Coombs | 98 | S9 | Gwich Royals | 5:40.37 |
| 1 | 22 | Oliver Carter | 00 | S10 | Fife Perform | 5:35.68 |
| 2 | 24 | Julian Erxleben | 96 | S10 | Germany | 5:31.24 |
| 3 | 26 | Benjamin Foulston | 00 | S10 | Nova Cent'n | 5:28.78 |
| 4 | 28 | Wei Soong Toh | 98 | S8 | Singapore | 5:15.00 |
| 5 | 27 | Cameron Cox | 00 | S10 | Upper Deesid | 5:19.94 |
| 6 | 25 | Oliver Fellows | 98 | S8 | Lon Disabili | 5:30.14 |
| 7 | 23 | Hannes Schuermann | 97 | S7 | Germany | 5:31.31 |
| 8 | 21 | Malte Braunschweig | 00 | S10 | Germany | 5:38.70 |
| 9 | 19 | Kyosuke Oyama | 87 | S6 | Japan | 5:41.03 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 0 | 30 | Nils Bender | 93 | S9 | Germany | 5:11.50 |
| 1 | 32 | Michael Jones | 94 | S7 | Loughboro Un | 5:00.21 |
| 2 | 34 | Jaxon Simmons | 00 | S13 | Co Peterboro | 4:58.62 |
| 3 | 36 | Callum Pearson | 96 | S10 | Hastings | 4:56.54 |
| 4 | 38 | Ivan Salguero Oteiza | 98 | S13 | Spain | 4:54.87 |
| 5 | 37 | Daniel Simon | 88 | S12 | Germany | 4:55.00 |
| 6 | 35 | Jonathan McGrath | 93 | S8 | Ireland | 4:57.92 |
| 7 | 33 | Tharon Drake | 92 | S11 | USA | 4:59.00 |
| 8 | 31 | Lewis White | 00 | S9 | Co Derby | 5:08.87 |
| 9 | 29 | Jamie Warriner | 99 | S10 | Preston | 5:13.98 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 0 | 41 | Fraser Kane | 98 | S13 | N Ayrshire | 4:50.29 |
| 1 | 45 | Robert Dalgleish | 95 | S10 | West Lothian | 4:44.45 |
| 2 | 49 | Jonathan Booth | 98 | S10 | Bo Kirklees | 4:40.15 |
| 3 | 53 | Kahoru Harazawa | 97 | S10 | Dulwich Dolp | 4:37.18 |
| 4 | 57 | Jose Mari Alcaraz | 88 | S9 | Spain | 4:20.69 |
| 5 | 55 | Oliver Hynd | 94 | S8 | Nova Cent'n | 4:27.67 |
| 6 | 51 | Klaus Steinhauer | 96 | S10 | Germany | 4:39.84 |
| 7 | 47 | Jonathan Fox | 91 | S7 | Co Manch Aq | 4:42.54 |
| 8 | 43 | Bastian Fontayne | 97 | S9 | Germany | 4:49.83 |
| 9 | 39 | Craig McNeil | 97 | S10 | SwimTrafford | 4:54.87 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 0 | 42 | Ryan West | 97 | S9 | Gloucester | 4:50.09 |
| 1 | 46 | Simon Boer | 95 | S9 | Netherlands | 4:44.43 |
| 2 | 50 | Miguel Sanchez Mateo | 94 | S12 | Spain | 4:40.12 |
| 3 | 54 | Matthew Wylie | 96 | S9 | Co Sund'land | 4:31.84 |
| 4 | 58 | Robert Welbourn | 87 | S10 | Swansea Uni | 4:09.71 |
| 5 | 56 | James Clegg | 94 | S12 | East Lothian | 4:21.76 |
| 6 | 52 | Josef Craig | 97 | S8 | South Tyne | 4:39.14 |
| 7 | 48 | Jose Cantero Elvira | 93 | S12 | Spain | 4:40.32 |
| 8 | 44 | Israel Oliver | 87 | S11 | Spain | 4:48.17 |
| 9 | 40 | Torben Schmidtke | 89 | S8 | Germany | 4:53.32 |