EVENT 207 Mens Open 50m Breaststroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 2 | 1 | Jacob Marchbank | 99 | Perth City | 30.82 |
| 3 | 3 | Joshua Horobin | 99 | BelperMarlin | 30.82 |
| 4 | 5 | Lewis Smart | 01 | Mt Kelly | 30.76 |
| 5 | 4 | Miles Clark | 00 | Ealing | 30.78 |
| 6 | 2 | Ross Neally | 00 | West Lothian | 30.82 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 1 | 7 | Tommy Donovan | 01 | Anaconda | 30.67 |
| 2 | 9 | Lewis Waters | 99 | Co Newport | 30.65 |
| 3 | 11 | George Hopkins | 99 | Crawley | 30.63 |
| 4 | 13 | James King | 00 | Weston S M | 30.62 |
| 5 | 12 | Jack O'Brien | 00 | Co Manch Aq | 30.62 |
| 6 | 10 | Cameron Muir | 99 | Sth Ayrshire | 30.64 |
| 7 | 8 | Michael Alcorn | 99 | Mt Kelly | 30.66 |
| 8 | 6 | Adam Metcalf | 01 | Ellesmere Co | 30.67 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 1 | 15 | Jasper Lye | 99 | Co Bristol | 30.61 |
| 2 | 17 | Callum Warnock | 01 | Bellshill | 30.59 |
| 3 | 19 | Matthew Rogers | 00 | Bromley | 30.48 |
| 4 | 21 | Morgan Newman | 00 | Plymouth Lea | 30.35 |
| 5 | 20 | Benjamin Arkle | 99 | Co Cambridge | 30.38 |
| 6 | 18 | Euan Leslie | 99 | Sth Ayrshire | 30.55 |
| 7 | 16 | Connor Bryan | 00 | Co Oxford | 30.60 |
| 8 | 14 | Kenan Yeung | 00 | Preston | 30.62 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 1 | 23 | David Shipman | 00 | Potters Bar | 30.34 |
| 2 | 25 | Jack Tucker | 00 | Millfield | 30.33 |
| 3 | 27 | Joel Thompson | 01 | Shiverers | 30.29 |
| 4 | 29 | Sebastian Stewart | 00 | Sevenoaks | 30.26 |
| 5 | 28 | Andrew Paige | 99 | Mt Kelly | 30.28 |
| 6 | 26 | Joseph Murray | 99 | Pioneer 79 | 30.33 |
| 7 | 24 | George Clough | 99 | Warrender Ba | 30.34 |
| 8 | 22 | Liam Bollands | 99 | Middlesboro | 30.34 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 1 | 31 | Cameron Manley | 99 | C Beds SS | 30.24 |
| 2 | 33 | Joshua Lawson | 99 | Millfield | 30.08 |
| 3 | 35 | Gregory Butler | 00 | Co Derby | 30.01 |
| 4 | 37 | Oliver Crosby | 99 | Stockport Mo | 29.79 |
| 5 | 36 | Harry Devlin | 00 | York City | 29.96 |
| 6 | 34 | James McFadzen | 99 | Wycombe Dist | 30.06 |
| 7 | 32 | Thomas Wiggins | 99 | Co Peterboro | 30.08 |
| 8 | 30 | Aaron Dolan | 99 | Airdrie&monk | 30.26 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 1 | 39 | Lewis Fraser | 00 | Swansea Aq | 29.76 |
| 2 | 41 | Jean-Jaques Choron | 97 | Hastings | 29.70 |
| 3 | 43 | Levin Veale | 94 | Totnes | 29.52 |
| 4 | 45 | Marcus Gardiner | 97 | Plymouth Lea | 29.42 |
| 5 | 44 | James Lewis | 98 | Co Cardiff | 29.48 |
| 6 | 42 | Jack Blair | 98 | Chesterfield | 29.61 |
| 7 | 40 | Adam Freundlich | 88 | Long Eaton | 29.73 |
| 8 | 38 | Thomas Speed | 99 | Bo Barnsley | 29.78 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 1 | 49 | Daniel Lim | 96 | Edinburgh Un | 29.32 |
| 2 | 55 | Edward Baxter | 98 | Loughboro Un | 28.93 |
| 3 | 61 | Chris Kerr | 93 | Warrender Ba | 28.53 |
| 4 | 67 | Charlie Attwood | 97 | Bath Univ | 28.00 |
| 5 | 64 | Euan Inglis | 93 | Edinburgh Un | 28.19 |
| 6 | 58 | L Clifford-Stephenson | 93 | Chelsea&West | 28.78 |
| 7 | 52 | David Trickett | 95 | Leic Sharks | 29.08 |
| 8 | 46 | Joshua Thompson | 98 | Carnforth | 29.42 |
| Heat Number - 8 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 1 | 50 | Alex Wray | 98 | Loughboro Un | 29.18 |
| 2 | 56 | Richard Ayre | 93 | Co Wakefield | 28.92 |
| 3 | 62 | Craig Benson | 94 | UniOfStirl | 28.42 |
| 4 | 68 | Mark Campbell | 91 | Aberdeen Dol | 27.61 |
| 5 | 65 | Lawrence Palmer | 92 | Putteridge | 28.12 |
| 6 | 59 | James Wilby | 93 | Loughboro Un | 28.68 |
| 7 | 53 | Dominic Polling | 97 | Brighton | 29.05 |
| 8 | 47 | David Bloomfield | 99 | Brompton | 29.40 |
| Heat Number - 9 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 1 | 51 | David Ebanks | 82 | Romford Town | 29.09 |
| 2 | 57 | Luke Davies | 97 | Bath Univ | 28.85 |
| 3 | 63 | David Murphy | 98 | Co Oxford | 28.32 |
| 4 | 69 | Adam Peaty | 94 | Loughboro Un | 26.66 |
| 5 | 66 | Jamie Graham | 93 | UniOfStirl | 28.03 |
| 6 | 60 | Chris Steeples | 92 | Derventio | 28.65 |
| 7 | 54 | Zak Aitchison | 98 | Millfield | 28.97 |
| 8 | 48 | Oliver Taverner | 01 | Mt Kelly | 29.39 |