EVENT 603 Men's 200m Backstroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 0 | 2 | Christian Duetoft | 05 | Guildford Ct | 2:10.31 |
| 1 | 4 | Adam White | 07 | Millfield | 2:10.24 |
| 2 | 6 | Finlay John | 06 | Bridgend Cty | 2:10.16 |
| 3 | 8 | Johnathan Ireland | 08 | Maidenhead | 2:10.10 |
| 4 | 10 | Josef Adams | 07 | Chelsea&West | 2:09.79 |
| 5 | 9 | Jack Docherty-Simpson | 07 | Co Glasgow | 2:09.97 |
| 6 | 7 | Austyn Manley | 10 | Repton | 2:10.16 |
| 7 | 5 | Oliver Burns | 05 | Co Sheffield | 2:10.21 |
| 8 | 3 | Harvey Reed | 07 | Co Birm'ham | 2:10.25 |
| 9 | 1 | Daniel Johnstone | 07 | Nofio S Gar | 2:10.34 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 0 | 12 | Oliver Baskerville | 08 | Hatfield | 2:09.67 |
| 1 | 14 | Gideon Hollinsky | 05 | Swansea Uni | 2:09.43 |
| 2 | 16 | Jude Denning | 06 | Repton | 2:09.24 |
| 3 | 18 | Andrew Jones | 04 | Royal Wolv | 2:09.12 |
| 4 | 20 | Benjamin Guthrie | 07 | Co Milton K | 2:08.94 |
| 5 | 19 | Andrew Brodie | 05 | Edinburgh Un | 2:09.10 |
| 6 | 17 | Ben Uff | 08 | Mt Kelly | 2:09.24 |
| 7 | 15 | Aidan Orpin | 08 | Sutton Cheam | 2:09.41 |
| 8 | 13 | Benjamin Twynham | 05 | Derby Excel | 2:09.44 |
| 9 | 11 | Samuel Cooke | 06 | Corby | 2:09.73 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 0 | 22 | Benjamin Cross | 05 | Co Sheffield | 2:08.84 |
| 1 | 24 | Calum Peebles | 06 | East Lothian | 2:08.53 |
| 2 | 26 | Robert Burgess | 05 | Edinburgh Un | 2:08.07 |
| 3 | 28 | Antonio Nikolaou | 03 | Swansea Uni | 2:07.76 |
| 4 | 30 | Ethan Lawton | 01 | Derby Excel | 2:07.14 |
| 5 | 29 | Jake Franse | 07 | Worksop | 2:07.39 |
| 6 | 27 | Isaac Dodds | 04 | Bath Univ | 2:08.06 |
| 7 | 25 | Finlay Pope | 07 | Ramsbottom | 2:08.32 |
| 8 | 23 | Nikita Charykin | 06 | Thurrock | 2:08.72 |
| 9 | 21 | Benjamin Fox-Wiltshire | 05 | Co Cardiff | 2:08.85 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 0 | 32 | George Whittle | 06 | Derby Excel | 2:06.93 |
| 1 | 34 | Reece Blackett | 06 | Newcastle | 2:06.83 |
| 2 | 36 | Lewis Maxwell | 03 | N & D PP SC | 2:05.74 |
| 3 | 38 | Daniel Ransom | 08 | Co Leeds | 2:05.61 |
| 4 | 40 | Charlie Broome | 04 | Co Leeds | 2:05.54 |
| 5 | 39 | Tom Barden | 03 | Hailsham | 2:05.59 |
| 6 | 37 | Sean McCann | 05 | Lboro Uni | 2:05.70 |
| 7 | 35 | Edward Marcal Whittles | 06 | Chelsea&West | 2:06.44 |
| 8 | 33 | Jamie Gray | 07 | Plymouth Lea | 2:06.90 |
| 9 | 31 | Finn Broekhoven | 06 | Plymouth Lea | 2:07.14 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 0 | 44 | Mark Edmundson | 01 | Corsham | 2:04.56 |
| 1 | 50 | Ben Harrison | 00 | Lboro Uni | 2:03.61 |
| 2 | 56 | Hendrik Van Der Leest | 04 | Bath Univ | 2:02.61 |
| 3 | 62 | Pietro Ubertalli | 04 | Chelsea&West | 2:00.68 |
| 4 | 68 | Brodie Williams | 99 | Bath PC | 1:57.18 |
| 5 | 65 | Matthew Ward | 05 | Bath PC | 1:59.21 |
| 6 | 59 | Jack Skerry | 04 | Bath PC | 2:02.07 |
| 7 | 53 | Dean Fearn | 08 | Aberdeen Dol | 2:03.33 |
| 8 | 47 | Oscar Dodds | 06 | Leic Sharks | 2:04.18 |
| 9 | 41 | Isaac Thompson | 08 | TigersJersey | 2:05.37 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 0 | 45 | Toby Godsell | 07 | Millfield | 2:04.49 |
| 1 | 51 | Hubert Gdaniec | 04 | Mt Kelly | 2:03.60 |
| 2 | 57 | Jordon McPhail | 03 | Edinburgh Un | 2:02.61 |
| 3 | 63 | William Ryley | 98 | Co Cardiff | 2:00.20 |
| 4 | 69 | Oliver Morgan | 03 | Birm'ham Uni | 1:57.17 |
| 5 | 66 | Charlie Brown | 01 | L'borogh PC | 1:58.05 |
| 6 | 60 | Adam Graham | 05 | Millfield | 2:01.35 |
| 7 | 54 | Jamie Ferguson | 03 | UoAPS | 2:02.63 |
| 8 | 48 | Oliver Pope | 05 | Thanet Swim | 2:04.06 |
| 9 | 42 | Dominic Morgan | 05 | Swansea Uni | 2:05.20 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 0 | 46 | Conor Cherrington | 06 | Millfield | 2:04.21 |
| 1 | 52 | Denys Mialkovskyi | 07 | RTW Monson | 2:03.43 |
| 2 | 58 | Zach Speakman | 02 | UniOfStirl | 2:02.09 |
| 3 | 64 | Samuel Greenbank | 03 | Co Sheffield | 2:00.09 |
| 4 | 70 | Luke Greenbank | 97 | L'borogh PC | 1:56.94 |
| 5 | 67 | Cameron Brooker | 02 | Bath PC | 1:57.94 |
| 6 | 61 | Jonathon Marshall | 04 | Carnegie | 2:00.79 |
| 7 | 55 | Oscar Barlow | 05 | Swansea Uni | 2:02.62 |
| 8 | 49 | Fergus Thomson | 07 | Mt Kelly | 2:03.72 |
| 9 | 43 | Sebastian Somerset | 01 | Lboro Uni | 2:04.73 |