Last updated: 11 April 2023.
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Male
| Event | Name | Time | Date | Competition | Venue |
|---|---|---|---|---|---|
| 50m Freestyle | James Harrison | 00:23.83 | 01/08/2009 | British Gas Youth Champs | Sheffield |
| 100m Freestyle | James Harrison | 00:51.34 | 29/07/2009 | British Gas Youth Champs | Sheffield |
| 200m Freestyle | Martin Webster | 01:53.45 | 19/03/2003 | British Championships | Sheffield |
| 400m Freestyle | Ryan Flanagan | 04:01.29 | 03/03/2012 | British Championships | London |
| 800m Freestyle | Stephen Waterhouse | 08:48.06 | 01/08/2008 | ASA National Youth Champs | Sheffield |
| 1500m Freestyle | Liam Smith | 15:56.16 | 04/08/2004 | ASA National Youth Champs | Sheffield |
| 50m Backstroke | Danny Hall | 00:27.53 | 01/05/2016 | ASANER Championships | Sunderland |
| 100m Backstroke | Danny Hall | 00:58.56 | 27/05/2016 | Cardiff Open Meet | Cardiff |
| 200m Backstroke | Danny Hall | 02:04.89 | 29/07/2015 | British Summer Championships | Sheffield |
| 50m Breaststroke | Jonathan Milner | 00:29.59 | 17/04/2019 | British Championships | Glasgow |
| 100m Breaststroke | Jonathan Milner | 01:04.69 | 16/04/2019 | British Championships | Glasgow |
| 200m Breaststroke | Ryan Flanagan | 02:21.37 | 17/07/2012 | British Gas Youth Champs | Glasgow |
| 50m Butterfly | Jonathan Milner | 00:25.84 | 04/05/2019 | NER Youth Champs | Sheffield |
| 100m Butterfly | Jonathan Milner | 00:55.00 | 19/04/2019 | British Championships | Sheffield |
| 200m Butterfly | Ryan Flanagan | 02:03.99 | 18/07/2012 | British Gas Youth Champs | Sheffield |
| 200m Individual Medley | Ryan Flanagan | 02:05.87 | 18/07/2012 | British Gas Youth Champs | Sheffield |
| 400m Individual Medley | Jonathan Milner | 04:28.17 | 18/04/2019 | British Championships | Glasgow |
Female
| Event | Name | Time | Date | Competition | Venue | |
|---|---|---|---|---|---|---|
| 50m Freestyle | Georgia Coates | 00:25.96 | 30/04/2016 | ASANER Youth Championships | Sunderland | |
| 100m Freestyle | Georgia Coates | 00:55.79 | 15/04/2016 | British Championships | Glasgow | |
| 200m Freestyle | Georgia Coates | 01:58.54 | BR | 12/04/2016 | British Championships | Glasgow |
| 400m Freestyle | Anne Bochmann | 04:08.30 | 08/10/2010 | Commonwealth Games | Delhi | |
| 800m Freestyle | Leah Crisp | 08:40.09 | 24/07/2019 | British Summer Championships | Glasgow | |
| 1500m Freestyle | Leah Crisp | 16:38.76 | 17/03/2019 | Edinburgh International | Edinburgh | |
| 50m Backstroke | Kidiest Hodgson | 00:29.09 | 27/07/2022 | British Summer Championships | Sheffield | |
| 100m Backstroke | Kidiest Hodgson | 01:02.59 | 06/04/2022 | British Championships | Sheffield | |
| 200m Backstroke | Sophie Hobbah | 02:17.17 | 17/03/2019 | Edinburgh International | Edinburgh | |
| 50m Breaststroke | Sophie Taylor | 00:31.38 | 26/08/2013 | World Junior Championships | Dubai | |
| 100m Breaststroke | Sophie Taylor | 01:07.36 | BR | 29/08/2013 | World Junior Championships | Dubai |
| 200m Breaststroke | Georgia Coates | 02:27.10 | 13/04/2016 | British Championships | Glasgow | |
| 50m Butterfly | Ciara Schlosshan | 00:27.42 | 17/04/2019 | British Championships | Glasgow | |
| 100m Butterfly | Ciara Schlosshan | 00:59.53 | 28/07/2019 | British Summer Championships | Glasgow | |
| 200m Butterfly | Ciara Schlosshan | 02:09.55 | 25/07/2019 | British Summer Championships | Glasgow | |
| 200m Individual Medley | Leah Schlosshan | 02:11.72 | 08/04/2023 | British Championships | Sheffield | |
| 400m Individual Medley | Georgia Coates | 04:44.62 | 16/05/2016 | European Championships | London |