Last updated: 29 July 2023.
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Male
| Event | Name | Time | Date | Competition | Venue |
|---|---|---|---|---|---|
| 50m Freestyle | Matthew Vose | 00:23.94 | 21/07/2012 | ASA National Youth Champs | Sheffield |
| 100m Freestyle | James Harrison | 00:51.83 | 05/08/2010 | British Gas Youth Champs | Sheffield |
| 200m Freestyle | Gareth Mills | 01:51.46 | 31/07/2011 | British Gas Youth Champs | Sheffield |
| 400m Freestyle | Gareth Mills | 03:57.51 | 27/07/2011 | British Gas Youth Champs | Sheffield |
| 800m Freestyle | Stephen Waterhouse | 08:28.79 | 30/07/2009 | British Gas Youth Champs | Sheffield |
| 1500m Freestyle | Gareth Mills | 15:41.06 | 28/07/2011 | British Gas Youth Champs | Sheffield |
| 50m Backstroke | Danny Hall | 00:27.57 | 26/07/2016 | British Summer Championships | Sheffield |
| 100m Backstroke | Myles Stirk | 00:56.96 | 25/07/2018 | British Summer Championships | Sheffield |
| 200m Backstroke | Danny Hall | 02:04.35 | 31/07/2016 | British Summer Championships | Sheffield |
| 50m Breaststroke | Jonathon Milner | 00:30.25 | 24/07/2019 | British Summer Championships | Glasgow |
| 100m Breaststroke | Joseph Siberry | 01:05.94 | 29/01/2011 | Zonal Championships | Sheffield |
| 200m Breaststroke | Jake Sykes | 02:21.26 | 01/08/2018 | Swim England Summer Meet | Sheffield |
| 50m Butterfly | Charlie Broome | 00:25.28 | 17/12/2022 | City of Leeds Christmas Cracker | Leeds |
| 100m Butterfly | Jonathon Milner | 00:55.23 | 07/26/2019 | British Summer Championships | Glasgow |
| 200m Butterfly | Charlie Broome | 02:02.30 | 05/04/2023 | British Championships | Sheffield |
| 200m Individual Medley | Charlie Broome | 02:08.11 | 08/04/2023 | British Championships | Sheffield |
| 400m Individual Medley | Charlie Broome | 04:31.91 | 25/07/2022 | British Summer Championships | Sheffield |
Female
| Distance | Name | Time | Date | Competition | Venue | |
|---|---|---|---|---|---|---|
| 50m Freestyle | Kidiest Hodgson | 00:26.64 | 11/03/2023 | Swedish Grand Prix | Kungsbacka | |
| 100m Freestyle | Georgia Coates | 00:56.07 | 28/07/2017 | British Summer Championships | Sheffield | |
| 200m Freestyle | Leah Schlosshan | 02:00.18 | 05/07/2023 | European Junior Championships | Belgrade | |
| 400m Freestyle | Anna Bochmann | 04:09.90 | 23/06/2012 | British Summer Championships | Sheffield | |
| 800m Freestyle | Rachel Jack | 08:59.65 | 03/04/2008 | British Championships | Sheffield | |
| 1500m Freestyle | Kym Holland | 18:02.50 | 04/05/2008 | North East Regional Youths | Sheffield | |
| 50m Backstroke | Kidiest Hodgson | 00:29.32 | 11/03/2023 | Swedish Grand Prix | Kungsbaka | |
| 100m Backstroke | Kidiest Hodgson | 01:02.91 | 12/03/2023 | Swedish Grand Prix | Kungsbaka | |
| 200m Backstroke | Kirsty Thomson | 02:14.76 | Sep 1998 | Commonwealth Games | Kuala Lumpur | |
| 50m Breaststroke | Sophie Taylor | 00:30.56 | 24/07/2014 | Commonwealth Games | Glasgow | |
| 100m Breaststroke | Sophie Taylor | 01:06.35 | BR | 28/07/2014 | Commonwealth Games | Glasgow |
| 200m Breaststroke | Sophie Taylor | 02:24.46 | 12/04/2014 | British Championships | Glasgow | |
| 50m Butterfly | Izzy Goodwin | 00:28.05 | 12/03/2023 | Swedish Grand Prix | Kungsbaka | |
| 100m Butterfly | Izzy Goodwin | 01:01.64 | 11/03/2023 | Swedish Grand Prix | Kungsbaka | |
| 200m Butterfly | Izzy Goodwin | 02:16.87 | 06/04/2023 | British Championships | Sheffield | |
| 200m Individual Medley | Leah Schlosshan | 02:12.41 | 09/07/2023 | European Junior Championships | Belgrade | |
| 400m Individual Medley | Leah Schlosshan | 04:46.20 | 27/07/2023 | British Summer Championships | Sheffield |