Open/Male - Short Course - 50m Breaststroke - British - All Time - Open Age Group
| Rank | Name | Ranked Club | YoB | Meet | Date | Time |
|---|---|---|---|---|---|---|
| 1 | Adam Peaty | Derby Excel | 94 | 2020 ISL Series, Budapest, Hungary | 22/11/20 | 25.41 |
| 2 | Ross Murdoch | UniOfStirl | 94 | Scottish National Short Course Championships, Edinburgh | 13/12/19 | 26.26 |
| Archie Goodburn | Edinburgh Un | 01 | LEN European Short Course Championships 2023, Bucharest | 05/12/23 | 26.26 | |
| 4 | Zak Aitchison | StirlingSwim | 98 | Scottish National Short Course Championships, Edinburgh | 13/12/19 | 26.56 |
| 5 | James Wilby | Co Leeds | 93 | SE Winter Championships 2018, Sheffield | 14/12/18 | 26.61 |
| 6 | Lawrence Palmer | Putteridge | 92 | Swim England National Winter Championships (25m), Sheffield | 03/12/21 | 26.63 |
| 7 | Andrew Weatheritt | St Ives | 91 | Retford 21st Annual Open Meet, Sheffield | 22/06/14 | 26.70 |
| Lewis Clifford-Stephenson | Dartmoor DA | 93 | ASA Winter Meet, Sheffield | 19/12/15 | 26.70 | |
| David Murphy | Co Oxford | 98 | Swim England National Winter Championships (25m), Sheffield | 03/12/21 | 26.70 | |
| 10 | Craig Benson | Warrender Ba | 94 | Scottish National Short Course Championships, Edinburgh | 13/12/19 | 26.71 |
| 11 | Darren Mew | Ellesmere Co | 79 | British Swimming SC Champs2003, Stockport | 14/08/03 | 26.72 |
| 12 | Lewis Fraser | Swansea Uni | 00 | Swim Wales Winter Championships 2023, Swansea | 15/12/23 | 26.87 |
| 13 | Ian Hulme | Peterlee | 84 | British Gas Grand Prix, Leeds | 08/08/09 | 26.89 |
| 14 | Gregory Butler | Lboro Uni | 00 | National Winter Championships 2022, Sheffield | 02/12/22 | 26.94 |
| 15 | James Gibson | Lboro Uni | 80 | European Short Course Champs, Antwerp, Belgium | 15/12/01 | 26.98 |
| 16 | David Bloomfield | Lboro Uni | 99 | Swim England National Winter Championships (25m), Sheffield | 03/12/21 | 26.99 |
| Elliot Woodburn | Millfield | 05 | National Winter Championships 2022, Sheffield | 02/12/22 | 26.99 | |
| 18 | Kyle Booth | Co Cardiff | 01 | Swim Wales Winter Championships 2023, Swansea | 15/12/23 | 27.01 |
| 19 | Christopher Cook | Co Newcastle | 79 | British Swimming SC Champs2003, Stockport | 14/08/03 | 27.02 |
| 20 | Samuel Neeld | Birm'ham Uni | 00 | BUCS Short Course Swimming Championships 2023, Sheffield | 18/11/23 | 27.03 |
| 21 | Charlie Attwood | Royal Navy | 97 | ASA Winter Meet 2016, Sheffield | 17/12/16 | 27.05 |
| 22 | Richard Spoor | Halesowen | 92 | ASA Winter Meet, Sheffield | 19/12/15 | 27.10 |
| Max Morgan | Reed's SC | 08 | Guildford City L2 Winter Open Meet 2023, Surrey Sports Park | 19/11/23 | 27.10 | |
| 24 | Daniel Sliwinski | Preston | 90 | British Gas Grand Prix, Leeds | 08/08/09 | 27.14 |
| 25 | Rory Dickson | UniOfStirl | 02 | Scottish National Short Cource Championships 2023, Edinburgh | 08/12/23 | 27.15 |
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