Last updated: 25 April 2025.
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Male
| Event | Name | Time | Date | Competition | Venue |
|---|---|---|---|---|---|
| 50m Freestyle | Gabriel Shepherd | 00:22.67 | 25/07/2024 | British Summer Championships | Sheffield |
| 100m Freestyle | Gabriel Shepherd | 00:49.24 | 07/07/2024 | European Junior Championships | Vilnius |
| 200m Freestyle | Gabriel Shepherd | 01:49.34 | 28/11/2024 | Rotterdam Qualification Meet | Rotterdam |
| 400m Freestyle | Kourosh Khodakhah | 03:56.91 | 02/04/2024 | British Championships | London |
| 800m Freestyle | Kourosh Khodakhah | 08:30.16 | 18/02/2024 | Yorkshire Championships | Sheffield |
| 1500m Freestyle | Kourosh Khodakhah | 15:52.51 | 04/04/2024 | British Championships | London |
| 50m Backstroke | Daniel Ransom | 00:26.57 | 21/07/2024 | British Summer Championships | Sheffield |
| 100m Backstroke | Daniel Ransom | 00:56.60 | 22/07/2024 | British Summer Championships | Sheffield |
| 200m Backstroke | Daniel Ransom | 02:02.63 | 28/11/2024 | Rotterdam Qualification Meet | Rotterdam |
| 50m Breaststroke | Daniel Ransom | 00:28.98 | 01/02/2025 | CMCM Euro Meet | Luxembourg |
| 100m Breaststroke | Daniel Ransom | 01:02.90 | 21/07/2024 | British Summer Championships | Sheffield |
| 200m Breaststroke | Daniel Ransom | 02:19.39 | 06/04/2024 | British Championships | London |
| 50m Butterfly | Matthew Just | 00:25.36 | 04/01/2025 | City of Leeds New Year Meet | Leeds |
| 100m Butterfly | Gabriel Shepherd | 00:56.70 | 17/03/2024 | Derby Excel National Qualifier | Sheffield |
| 200m Butterfly | Gabriel Shepherd | 02:05.22 | 22/07/2024 | British Summer Championships | Sheffield |
| 200m Individual Medley | Daniel Ransom | 02:04.30 | 25/07/2024 | British Summer Championships | Sheffield |
| 400m Individual Medley | Daniel Ransom | 04:30.88 | 04/04/2024 | British Championships | London |
Female
| Event | Name | Time | Date | Competition | Venue | |
|---|---|---|---|---|---|---|
| 50m Freestyle | Emma Wood | 00:25.99 | 17/04/2025 | Aquatics GB Swimming Championships | London | |
| 100m Freestyle | Emma Wood | 00:55.78 | 20/04/2025 | Aquatics GB Swimming Championships | London | |
| 200m Freestyle | Georgia Coates | 02:00.16 | 28/07/2015 | British Summer Championships | Sheffield | |
| 400m Freestyle | Anna Bochmann | 04:10.99 | 04/08/2010 | British Gas Youth Champs | Sheffield | |
| 800m Freestyle | Danielle Hall-Jackson | 08:39.30 | 29/07/2011 | National Youth Championships | Sheffield | |
| 1500m Freestyle | Danielle Hall-Jackson | 16:34.84 | 06/03/2011 | British Championships | Manchester | |
| 50m Backstroke | Emma Wood | 00:29.89 | 29/11/2024 | Rotterdam Qualification Meet | Rotterdam | |
| 100m Backstroke | Sophie Hobbah | 01:03.48 | 30/06/2018 | Scottish National Championships | Glasgow | |
| 200m Backstroke | Sophie Hobbah | 02:12.40 | 27/07/2018 | British Summer Championships | Sheffield | |
| 50m Breaststroke | Sophie Taylor | 00:31.72 | 04/07/2012 | European Junior Championships | Antwerp | |
| 100m Breaststroke | Sophie Taylor | 01:09.36 | 19/01/2013 | Flanders Cup | Antwerp | |
| 200m Breaststroke | Georgia Coates | 02:26.42 | BR | 30/08/2015 | World Junior Championships | Singapore |
| 50m Butterfly | Isabelle Goodwin | 00:27.05 | 09/07/2021 | European Junior Championships | Rome | |
| 100m Butterfly | Ciara Schlosshan | 01:00.16 | 13/12/2017 | SE Winter Championships | Sheffield | |
| 200m Butterfly | Ciara Schlosshan | 02:11.18 | 05/07/2018 | European Junior Championships | Helsinki | |
| 200m Individual Medley | Georgia Coates | 02:12.74 | 28/08/2015 | World Junior Championships | Singapore | |
| 400m Individual Medley | Georgia Coates | 04:39.94 | BR | 25/08/2015 | World Junior Championships | Singapore |