Home › County rankings › Surrey › Boys 12 years

Surrey Swimming Rankings — Boys 12 years

The fastest Surrey boys aged 12 years over the last 12 months, taken from the official Swim England (ASA) rankings and ranked by county. Long course and short course times are listed separately, exactly as Swim England publishes them.

Where does your swimmer rank?

Enter a name or Swim England (ASA) number and we pull every official time, show their county ranking position and tell you exactly which county, regional and national qualifying times they have hit — and how far off they are for the rest.

Check a swimmer →

Surrey long course rankings — Boys 12 years

50m Freestyle — Long course (50m)

Surrey Boys 12 years — 50m Freestyle (LC)
#	Swimmer	Club	Time	Date
1	Ethan Tallis	Guildford Ct	28.91	25/04/26
2	Ethan Tang	Woking	29.79	25/04/26
3	Mason McLennon-Defoe	Wandsworth	29.80	08/02/26
4	Zachary Groom	Epsom Dist	29.96	06/06/26
5	Deshler Speichert-Chahal	Guildford Ct	30.30	08/02/26
6	Nat Hawkins	Wandsworth	30.36	03/05/26
7	Tate Lai	Barnes SC	30.48	03/05/26
8	Hugo Hunter	Dorking	30.60	25/04/26
9	Kenan Arikan	SouthCroydon	30.61	08/02/26
10	Hayden Seale	Elmbridge	30.68	08/02/26

100m Freestyle — Long course (50m)

Surrey Boys 12 years — 100m Freestyle (LC)
#	Swimmer	Club	Time	Date
1	Ethan Tallis	Guildford Ct	1:04.10	26/04/26
2	Deshler Speichert-Chahal	Guildford Ct	1:05.96	24/01/26
3	Mason McLennon-Defoe	Wandsworth	1:06.62	25/04/26
4	Kenan Arikan	SouthCroydon	1:06.67	24/01/26
5	Hugo Hunter	Dorking	1:06.85	24/01/26
6	Maximilian Lowe	Kingston Roy	1:07.00	24/01/26
7	Ethan Tang	Woking	1:07.20	24/01/26
8	Zachary Groom	Epsom Dist	1:08.38	26/04/26
9	Max Tao	Barnes SC	1:08.54	21/03/26
10	Harry Olah	Redhill Marl	1:08.92	24/01/26

200m Freestyle — Long course (50m)

Surrey Boys 12 years — 200m Freestyle (LC)
#	Swimmer	Club	Time	Date
1	Ethan Tallis	Guildford Ct	2:19.95	25/01/26
2	Hugo Hunter	Dorking	2:23.74	26/04/26
3	Maximilian Lowe	Kingston Roy	2:25.42	25/01/26
4	Deshler Speichert-Chahal	Guildford Ct	2:25.66	25/01/26
5	Ethan Tang	Woking	2:26.53	26/04/26
6	Max Tao	Barnes SC	2:29.03	04/05/26
7	Kenan Arikan	SouthCroydon	2:29.68	25/01/26
8	Harry Olah	Redhill Marl	2:29.86	05/04/26
9	Zachary Groom	Epsom Dist	2:30.88	26/04/26
10	Archie Goldhawk	Elmbridge	2:31.10	26/04/26

400m Freestyle — Long course (50m)

Surrey Boys 12 years — 400m Freestyle (LC)
#	Swimmer	Club	Time	Date
1	Ethan Tallis	Guildford Ct	4:54.50	25/01/26
2	Maximilian Lowe	Kingston Roy	5:09.17	25/01/26
3	Hugo Hunter	Dorking	5:10.97	26/04/26
4	Deshler Speichert-Chahal	Guildford Ct	5:12.47	14/03/26
5	Seungho Khang	Sutton Cheam	5:13.74	09/05/26
6	Michael Van Zyl	Epsom Dist	5:14.27	26/04/26
7	Paul Balsys	Guildford Ct	5:15.43	14/03/26
8	Harry Olah	Redhill Marl	5:15.69	25/01/26
9	Joe Jarrett	Farnham	5:19.17	26/04/26
10	Kenan Arikan	SouthCroydon	5:19.84	22/03/26

800m Freestyle — Long course (50m)

Surrey Boys 12 years — 800m Freestyle (LC)
#	Swimmer	Club	Time	Date
1	Ethan Tallis	Guildford Ct	9:58.26	09/05/26
2	Hugo Hunter	Dorking	10:29.95	09/05/26
3	Kenan Arikan	SouthCroydon	10:38.95	03/05/26
4	Oliver Addlesee	Sutton Cheam	10:50.94	03/05/26
5	Michael Van Zyl	Epsom Dist	11:00.63	20/03/26
6	Aaron Cherpokov	Sutton Cheam	12:39.02	03/01/26

1500m Freestyle — Long course (50m)

Surrey Boys 12 years — 1500m Freestyle (LC)
#	Swimmer	Club	Time	Date
1	Ethan Tallis	Guildford Ct	19:15.75	24/01/26
2	Hugo Hunter	Dorking	20:14.86	25/04/26
3	Deshler Speichert-Chahal	Guildford Ct	20:48.49	24/01/26
4	Michael Van Zyl	Epsom Dist	20:50.60	25/04/26
5	Paul Balsys	Guildford Ct	21:28.10	11/04/26
6	Sebastian Stott-Fernandez	Guildford Ct	22:14.14	15/03/26

50m Backstroke — Long course (50m)

Surrey Boys 12 years — 50m Backstroke (LC)
#	Swimmer	Club	Time	Date
1	Ethan Tallis	Guildford Ct	33.21	07/02/26
2	Mason McLennon-Defoe	Wandsworth	34.28	07/02/26
3	Nat Hawkins	Wandsworth	34.57	02/05/26
4	Julian Donchev	Dorking	35.21	09/05/26
5	Kenan Arikan	SouthCroydon	35.54	07/02/26
6	Grayson McKay	Epsom Dist	35.58	09/05/26
7	Deshler Speichert-Chahal	Guildford Ct	35.76	07/02/26
8	Joe Jarrett	Farnham	36.05	09/05/26
9	Andrei Karabelov	Sutton Cheam	36.17	04/04/26
10	Oscar Skarlosh	Kingston Roy	36.38	02/05/26

100m Backstroke — Long course (50m)

Surrey Boys 12 years — 100m Backstroke (LC)
#	Swimmer	Club	Time	Date
1	Ethan Tallis	Guildford Ct	1:11.56	10/05/26
2	Mason McLennon-Defoe	Wandsworth	1:16.20	25/01/26
3	Kenan Arikan	SouthCroydon	1:16.71	25/01/26
4	Nat Hawkins	Wandsworth	1:16.75	03/05/26
5	Julian Donchev	Dorking	1:17.34	25/01/26
6	Max Tao	Barnes SC	1:17.65	25/01/26
7	Deshler Speichert-Chahal	Guildford Ct	1:17.96	25/01/26
8	Andrei Karabelov	Sutton Cheam	1:18.61	05/04/26
9	Joe Jarrett	Farnham	1:18.74	10/05/26
10	Oscar Skarlosh	Kingston Roy	1:20.34	03/05/26

200m Backstroke — Long course (50m)

Surrey Boys 12 years — 200m Backstroke (LC)
#	Swimmer	Club	Time	Date
1	Ethan Tallis	Guildford Ct	2:33.68	09/05/26
2	Mason McLennon-Defoe	Wandsworth	2:44.24	04/05/26
3	Deshler Speichert-Chahal	Guildford Ct	2:44.90	07/02/26
4	Kenan Arikan	SouthCroydon	2:45.04	04/05/26
5	Andrei Karabelov	Sutton Cheam	2:45.46	04/05/26
6	Max Tao	Barnes SC	2:47.24	07/02/26
7	Grayson McKay	Epsom Dist	2:52.44	09/05/26
8	Joe Jarrett	Farnham	2:52.60	07/02/26
9	Oliver Addlesee	Sutton Cheam	2:52.63	07/02/26
10	Hugo Hunter	Dorking	2:52.77	07/02/26

50m Breaststroke — Long course (50m)

Surrey Boys 12 years — 50m Breaststroke (LC)
#	Swimmer	Club	Time	Date
1	Benjamin Haslam	Sutton Cheam	37.50	25/04/26
2	Sebastian Fongo	Guildford Ct	38.13	18/07/26
3	Ethan Tang	Woking	38.37	10/05/26
4	Maximilian Lowe	Kingston Roy	38.43	25/04/26
5	Tate Lai	Barnes SC	38.46	25/04/26
6	Luca Benson	Dorking	38.51	06/02/26
7	Harry Olah	Redhill Marl	38.75	10/05/26
8	Mason McLennon-Defoe	Wandsworth	39.72	24/01/26
9	Rene Uzdin	Kingston Roy	39.95	25/04/26
10	Joseph Smuts	Cranleigh	40.05	10/05/26

100m Breaststroke — Long course (50m)

Surrey Boys 12 years — 100m Breaststroke (LC)
#	Swimmer	Club	Time	Date
1	Benjamin Haslam	Sutton Cheam	1:23.33	04/05/26
2	Maximilian Lowe	Kingston Roy	1:23.41	04/05/26
3	Harry Olah	Redhill Marl	1:24.90	09/05/26
4	Sebastian Fongo	Guildford Ct	1:24.96	19/07/26
5	Rene Uzdin	Kingston Roy	1:26.89	04/05/26
6	Alfred Storey	Epsom Dist	1:27.60	09/05/26
7	Theo Santini Paoletti	Wandsworth	1:27.86	04/07/26
8	Joseph Smuts	Cranleigh	1:28.21	09/05/26
9	James Weed	Elmbridge	1:28.55	07/02/26
10	Ethan Tang	Woking	1:29.43	07/02/26

200m Breaststroke — Long course (50m)

Surrey Boys 12 years — 200m Breaststroke (LC)
#	Swimmer	Club	Time	Date
1	Maximilian Lowe	Kingston Roy	3:01.44	26/04/26
2	Benjamin Haslam	Sutton Cheam	3:02.72	26/04/26
3	Rene Uzdin	Kingston Roy	3:06.60	26/04/26
4	Sebastian Fongo	Guildford Ct	3:07.62	10/05/26
5	Sidney Farr	Sutton Cheam	3:10.91	26/04/26
6	Ethan Tang	Woking	3:13.07	08/02/26
7	Harry Olah	Redhill Marl	3:13.42	22/03/26
8	James Weed	Elmbridge	3:13.46	10/05/26
9	Alfred Storey	Epsom Dist	3:14.35	10/05/26
10	Finley Keating	Guildford Ct	3:14.75	08/02/26

50m Butterfly — Long course (50m)

Surrey Boys 12 years — 50m Butterfly (LC)
#	Swimmer	Club	Time	Date
1	Nat Hawkins	Wandsworth	31.10	26/04/26
2	Mason McLennon-Defoe	Wandsworth	32.05	25/05/26
3	Paul Balsys	Guildford Ct	32.45	25/01/26
4	Charlie Precious	Redhill Marl	32.60	26/04/26
5	Ethan Tang	Woking	33.25	26/04/26
6	Harry Olah	Redhill Marl	33.70	25/01/26
7	Zachary Groom	Epsom Dist	33.87	21/03/26
8	Michael Van Zyl	Epsom Dist	34.23	25/01/26
9	Jake Larkman	Leander	34.33	26/04/26
10	Seungho Khang	Sutton Cheam	34.35	14/03/26

100m Butterfly — Long course (50m)

Surrey Boys 12 years — 100m Butterfly (LC)
#	Swimmer	Club	Time	Date
1	Mason McLennon-Defoe	Wandsworth	1:11.84	02/05/26
2	Paul Balsys	Guildford Ct	1:12.85	08/02/26
3	Deshler Speichert-Chahal	Guildford Ct	1:15.00	08/02/26
4	Harry Olah	Redhill Marl	1:15.90	25/04/26
5	Charlie Precious	Redhill Marl	1:15.98	25/04/26
6	Sebastian Fongo	Guildford Ct	1:16.43	25/04/26
7	Seungho Khang	Sutton Cheam	1:16.54	02/05/26
8	Nat Hawkins	Wandsworth	1:17.06	08/02/26
9	Jake Larkman	Leander	1:17.87	08/02/26
10	Teddy Short	Croydon Amph	1:20.46	02/05/26

200m Butterfly — Long course (50m)

Surrey Boys 12 years — 200m Butterfly (LC)
#	Swimmer	Club	Time	Date
1	Deshler Speichert-Chahal	Guildford Ct	2:47.49	18/07/26
2	Paul Balsys	Guildford Ct	2:52.43	11/04/26
3	Sebastian Fongo	Guildford Ct	2:53.26	25/04/26
4	Harry Olah	Redhill Marl	2:59.69	24/01/26
5	Finley Keating	Guildford Ct	3:07.80	24/01/26
6	Seungho Khang	Sutton Cheam	3:08.83	10/05/26
7	Michael Van Zyl	Epsom Dist	3:12.43	25/04/26
8	Charlie Precious	Redhill Marl	3:15.95	24/01/26
9	Aaron Cherpokov	Sutton Cheam	3:19.45	10/05/26
10	Ted Layton	SW Lon Fin	3:20.18	24/01/26

200m Individual Medley — Long course (50m)

Surrey Boys 12 years — 200m Individual Medley (LC)
#	Swimmer	Club	Time	Date
1	Ethan Tallis	Guildford Ct	2:39.66	26/04/26
2	Maximilian Lowe	Kingston Roy	2:43.74	03/05/26
3	Harry Olah	Redhill Marl	2:43.75	12/07/26
4	Sebastian Fongo	Guildford Ct	2:44.03	19/07/26
5	Mason McLennon-Defoe	Wandsworth	2:44.64	03/05/26
6	Kenan Arikan	SouthCroydon	2:45.66	03/05/26
7	Deshler Speichert-Chahal	Guildford Ct	2:45.96	12/04/26
8	Ethan Tang	Woking	2:49.80	22/03/26
9	Hugo Hunter	Dorking	2:50.92	04/04/26
10	Max Tao	Barnes SC	2:51.01	08/03/26

400m Individual Medley — Long course (50m)

Surrey Boys 12 years — 400m Individual Medley (LC)
#	Swimmer	Club	Time	Date
1	Maximilian Lowe	Kingston Roy	5:46.46	22/03/26
2	Sebastian Fongo	Guildford Ct	5:49.70	10/05/26
3	Deshler Speichert-Chahal	Guildford Ct	5:51.11	07/02/26
4	Harry Olah	Redhill Marl	5:52.59	10/05/26
5	Paul Balsys	Guildford Ct	6:00.57	10/05/26
6	Finley Keating	Guildford Ct	6:08.06	07/02/26
7	Hugo Hunter	Dorking	6:08.46	10/05/26

Surrey short course rankings — Boys 12 years

50m Freestyle — Short course (25m)

Surrey Boys 12 years — 50m Freestyle (SC)
#	Swimmer	Club	Time	Date
1	Mason McLennon-Defoe	Wandsworth	28.98	21/06/26
2	Ethan Tallis	Guildford Ct	29.63	29/03/26
3	Zachary Groom	Epsom Dist	29.66	11/07/26
4	Deshler Speichert-Chahal	Guildford Ct	30.18	23/11/25
5	Julian Donchev	Dorking	30.38	12/05/26
6	Maximilian Lowe	Kingston Roy	30.48	05/07/26
7	Senyui Leung	Sutton Cheam	30.52	13/06/26
8	Luca Benson	Dorking	30.54	06/12/25
9	Harry Olah	Redhill Marl	30.67	27/06/26
10	Lucas Huzzey	Elmbridge	30.90	27/06/26

100m Freestyle — Short course (25m)

Surrey Boys 12 years — 100m Freestyle (SC)
#	Swimmer	Club	Time	Date
1	Mason McLennon-Defoe	Wandsworth	1:03.53	21/06/26
2	Deshler Speichert-Chahal	Guildford Ct	1:04.47	23/11/25
3	Ethan Tallis	Guildford Ct	1:05.12	28/03/26
4	Hugo Hunter	Dorking	1:05.19	20/06/26
5	Luca Benson	Dorking	1:05.89	06/12/25
6	Harry Olah	Redhill Marl	1:06.86	27/06/26
7	Zachary Groom	Epsom Dist	1:07.29	04/07/26
8	Maximilian Lowe	Kingston Roy	1:07.51	21/12/25
9	Sebastian Fongo	Guildford Ct	1:07.53	14/06/26
10	Finley Keating	Guildford Ct	1:07.91	20/12/25

200m Freestyle — Short course (25m)

Surrey Boys 12 years — 200m Freestyle (SC)
#	Swimmer	Club	Time	Date
1	Ethan Tallis	Guildford Ct	2:15.61	13/06/26
2	Maximilian Lowe	Kingston Roy	2:20.97	04/07/26
3	Luca Benson	Dorking	2:21.68	06/12/25
4	Deshler Speichert-Chahal	Guildford Ct	2:22.64	22/11/25
5	Ethan Tang	Woking	2:23.10	12/07/26
6	Max Tao	Barnes SC	2:24.25	20/06/26
7	Seungho Khang	Sutton Cheam	2:24.27	13/06/26
8	Zachary Groom	Epsom Dist	2:25.95	11/07/26
9	Hugo Hunter	Dorking	2:26.61	10/01/26
10	Mason McLennon-Defoe	Wandsworth	2:27.05	17/05/26

400m Freestyle — Short course (25m)

Surrey Boys 12 years — 400m Freestyle (SC)
#	Swimmer	Club	Time	Date
1	Ethan Tallis	Guildford Ct	4:53.00	21/12/25
2	Deshler Speichert-Chahal	Guildford Ct	5:02.56	23/11/25
3	Sebastian Fongo	Guildford Ct	5:05.62	17/05/26
4	Hugo Hunter	Dorking	5:08.34	23/03/26
5	Max Tao	Barnes SC	5:13.46	17/05/26
6	Harry Olah	Redhill Marl	5:15.20	29/11/25
7	Joe Jarrett	Farnham	5:15.73	21/06/26
8	Alvin Czajka	Kingston Roy	5:16.85	21/06/26
9	Finley Keating	Guildford Ct	5:18.89	17/05/26
10	Maximilian Lowe	Kingston Roy	5:19.39	20/12/25

800m Freestyle — Short course (25m)

Surrey Boys 12 years — 800m Freestyle (SC)
#	Swimmer	Club	Time	Date
1	Ethan Tallis	Guildford Ct	10:23.45	31/10/25
2	Maximilian Lowe	Kingston Roy	10:24.88	06/06/26
3	Deshler Speichert-Chahal	Guildford Ct	10:28.69	31/10/25
4	Paul Balsys	Guildford Ct	10:38.77	04/07/26
5	Michael Van Zyl	Epsom Dist	10:44.26	06/06/26
6	Hugo Hunter	Dorking	10:52.13	04/01/26
7	Oliver Addlesee	Sutton Cheam	10:53.83	23/11/25
8	Harry Olah	Redhill Marl	10:59.29	18/10/25
9	Alfred Storey	Epsom Dist	11:02.46	06/06/26
10	Joe Jarrett	Farnham	11:06.90	15/11/25

1500m Freestyle — Short course (25m)

Surrey Boys 12 years — 1500m Freestyle (SC)
#	Swimmer	Club	Time	Date
1	Ethan Tallis	Guildford Ct	19:01.81	12/12/25
2	Deshler Speichert-Chahal	Guildford Ct	19:35.75	12/12/25
3	Paul Balsys	Guildford Ct	20:33.13	12/12/25
4	Maron Durovic-Ma	Guildford Ct	20:51.76	05/07/26
5	Hugo Hunter	Dorking	20:56.85	12/12/25
6	Archie Goldhawk	Elmbridge	21:05.74	06/06/26
7	Michael Van Zyl	Epsom Dist	21:06.01	27/11/25
8	Finley Keating	Guildford Ct	21:06.03	12/12/25
9	Mason McLennon-Defoe	Wandsworth	21:12.77	12/12/25
10	Sebastian Stott-Fernandez	Guildford Ct	21:14.34	12/12/25

50m Backstroke — Short course (25m)

Surrey Boys 12 years — 50m Backstroke (SC)
#	Swimmer	Club	Time	Date
1	Ethan Tallis	Guildford Ct	33.05	13/06/26
2	Mason McLennon-Defoe	Wandsworth	33.62	20/06/26
3	Hugo Hunter	Dorking	34.11	07/06/26
4	Hayden Seale	Elmbridge	34.89	28/06/26
5	Deshler Speichert-Chahal	Guildford Ct	35.00	14/06/26
6	Grayson McKay	Epsom Dist	35.37	14/06/26
7	Maximilian Lowe	Kingston Roy	35.40	20/06/26
8	Harry Olah	Redhill Marl	35.85	28/06/26
9	Lucas Huzzey	Elmbridge	35.90	28/06/26
10	Oscar Skarlosh	Kingston Roy	35.98	20/06/26

100m Backstroke — Short course (25m)

Surrey Boys 12 years — 100m Backstroke (SC)
#	Swimmer	Club	Time	Date
1	Ethan Tallis	Guildford Ct	1:10.66	14/06/26
2	Mason McLennon-Defoe	Wandsworth	1:10.99	21/06/26
3	Max Tao	Barnes SC	1:15.08	21/06/26
4	Deshler Speichert-Chahal	Guildford Ct	1:15.59	22/11/25
5	Julian Donchev	Dorking	1:15.75	21/06/26
6	Andrei Karabelov	Sutton Cheam	1:16.26	13/06/26
7	Hugo Hunter	Dorking	1:16.60	21/06/26
8	Joe Jarrett	Farnham	1:16.80	20/06/26
9	Alvin Czajka	Kingston Roy	1:17.82	21/06/26
10	Maximilian Lowe	Kingston Roy	1:18.33	17/05/26

200m Backstroke — Short course (25m)

Surrey Boys 12 years — 200m Backstroke (SC)
#	Swimmer	Club	Time	Date
1	Ethan Tallis	Guildford Ct	2:32.43	29/03/26
2	Mason McLennon-Defoe	Wandsworth	2:41.37	17/05/26
3	Andrei Karabelov	Sutton Cheam	2:44.03	13/06/26
4	Max Tao	Barnes SC	2:44.56	20/06/26
5	Grayson McKay	Epsom Dist	2:45.15	07/03/26
6	Deshler Speichert-Chahal	Guildford Ct	2:45.24	05/07/26
7	Maximilian Lowe	Kingston Roy	2:45.88	05/07/26
8	Henry Osmore	Sutton Cheam	2:46.02	11/07/26
9	Joe Jarrett	Farnham	2:46.32	22/06/26
10	Oscar Skarlosh	Kingston Roy	2:48.32	05/07/26

50m Breaststroke — Short course (25m)

Surrey Boys 12 years — 50m Breaststroke (SC)
#	Swimmer	Club	Time	Date
1	Sebastian Fongo	Guildford Ct	37.01	14/06/26
2	Benjamin Haslam	Sutton Cheam	38.33	12/05/26
3	Maximilian Lowe	Kingston Roy	38.59	14/05/26
4	Joseph Smuts	Cranleigh	38.67	28/06/26
5	Lucas Huzzey	Elmbridge	38.73	28/06/26
6	James Weed	Elmbridge	38.75	09/07/26
7	Alfred Storey	Epsom Dist	38.82	14/06/26
8	Ethan Tallis	Guildford Ct	39.25	14/06/26
9	Zachary Groom	Epsom Dist	39.35	05/07/26
10	Theo Santini Paoletti	Wandsworth	39.37	20/06/26

100m Breaststroke — Short course (25m)

Surrey Boys 12 years — 100m Breaststroke (SC)
#	Swimmer	Club	Time	Date
1	Maximilian Lowe	Kingston Roy	1:20.95	20/06/26
2	Sebastian Fongo	Guildford Ct	1:24.16	05/07/26
3	Luca Benson	Dorking	1:24.32	05/07/26
4	James Weed	Elmbridge	1:24.73	28/06/26
5	Joseph Smuts	Cranleigh	1:25.16	27/06/26
6	Alfred Storey	Epsom Dist	1:25.67	04/07/26
7	Lucas Huzzey	Elmbridge	1:26.66	28/06/26
8	Sidney Farr	Sutton Cheam	1:26.98	11/07/26
9	Finley Keating	Guildford Ct	1:27.08	17/05/26
10	Benjamin Haslam	Sutton Cheam	1:27.61	07/03/26

200m Breaststroke — Short course (25m)

Surrey Boys 12 years — 200m Breaststroke (SC)
#	Swimmer	Club	Time	Date
1	Sebastian Fongo	Guildford Ct	2:56.57	04/07/26
2	Maximilian Lowe	Kingston Roy	2:57.95	04/07/26
3	Sidney Farr	Sutton Cheam	2:59.92	12/07/26
4	Ethan Tang	Woking	3:02.93	07/07/26
5	Joseph Smuts	Cranleigh	3:04.20	27/06/26
6	Rene Uzdin	Kingston Roy	3:04.54	21/06/26
7	Mason McLennon-Defoe	Wandsworth	3:05.45	17/05/26
8	Theo Santini Paoletti	Wandsworth	3:08.22	17/05/26
9	Harry Olah	Redhill Marl	3:08.44	09/11/25
10	Benjamin Haslam	Sutton Cheam	3:10.07	08/03/26

50m Butterfly — Short course (25m)

Surrey Boys 12 years — 50m Butterfly (SC)
#	Swimmer	Club	Time	Date
1	Mason McLennon-Defoe	Wandsworth	32.20	21/06/26
2	Sebastian Fongo	Guildford Ct	32.40	05/07/26
3	Nat Hawkins	Wandsworth	32.67	17/05/26
4	Paul Balsys	Guildford Ct	33.03	22/11/25
5	Hugo Hunter	Dorking	33.06	11/06/26
6	Deshler Speichert-Chahal	Guildford Ct	33.57	05/07/26
7	Luca Benson	Dorking	33.61	06/12/25
8	Ethan Tallis	Guildford Ct	33.63	14/06/26
9	Seungho Khang	Sutton Cheam	33.82	12/07/26
10	Harry Olah	Redhill Marl	33.86	27/06/26

100m Butterfly — Short course (25m)

Surrey Boys 12 years — 100m Butterfly (SC)
#	Swimmer	Club	Time	Date
1	Mason McLennon-Defoe	Wandsworth	1:12.67	20/06/26
2	Hugo Hunter	Dorking	1:13.60	21/06/26
3	Paul Balsys	Guildford Ct	1:15.54	04/07/26
4	Harry Olah	Redhill Marl	1:16.17	29/11/25
5	Seungho Khang	Sutton Cheam	1:17.03	13/06/26
6	Sebastian Fongo	Guildford Ct	1:17.77	13/06/26
7	Deshler Speichert-Chahal	Guildford Ct	1:18.05	29/11/25
8	Nat Hawkins	Wandsworth	1:18.14	08/03/26
9	Maximilian Lowe	Kingston Roy	1:18.33	05/07/26
10	Benjamin Haslam	Sutton Cheam	1:18.46	12/07/26

200m Butterfly — Short course (25m)

Surrey Boys 12 years — 200m Butterfly (SC)
#	Swimmer	Club	Time	Date
1	Deshler Speichert-Chahal	Guildford Ct	2:45.01	05/07/26
2	Sebastian Fongo	Guildford Ct	2:49.06	16/05/26
3	Ethan Tang	Woking	2:53.75	12/07/26
4	Paul Balsys	Guildford Ct	2:56.70	23/11/25
5	Seungho Khang	Sutton Cheam	2:59.56	11/07/26
6	Michael Van Zyl	Epsom Dist	3:06.08	07/03/26
7	Finley Keating	Guildford Ct	3:06.60	21/12/25
8	Aaron Cherpokov	Sutton Cheam	3:07.92	11/07/26
9	Zachary Groom	Epsom Dist	3:12.53	04/07/26
10	Charlie Precious	Redhill Marl	3:15.66	29/09/25

100m Individual Medley — Short course (25m)

Surrey Boys 12 years — 100m Individual Medley (SC)
#	Swimmer	Club	Time	Date
1	Mason McLennon-Defoe	Wandsworth	1:13.65	17/05/26
2	Maximilian Lowe	Kingston Roy	1:14.03	14/05/26
3	Deshler Speichert-Chahal	Guildford Ct	1:14.32	14/06/26
4	Sebastian Fongo	Guildford Ct	1:15.68	05/07/26
5	Hugo Hunter	Dorking	1:16.36	11/06/26
6	Archie Goldhawk	Elmbridge	1:16.52	11/06/26
7	Lucas Huzzey	Elmbridge	1:16.59	27/06/26
8	Ethan Tang	Woking	1:16.73	17/05/26
9	Julian Donchev	Dorking	1:17.13	12/05/26
10	Benjamin Haslam	Sutton Cheam	1:18.36	12/05/26

200m Individual Medley — Short course (25m)

Surrey Boys 12 years — 200m Individual Medley (SC)
#	Swimmer	Club	Time	Date
1	Sebastian Fongo	Guildford Ct	2:36.92	04/07/26
2	Ethan Tallis	Guildford Ct	2:37.20	14/06/26
3	Maximilian Lowe	Kingston Roy	2:38.91	05/07/26
4	Harry Olah	Redhill Marl	2:42.62	28/06/26
5	Mason McLennon-Defoe	Wandsworth	2:44.04	08/03/26
6	Deshler Speichert-Chahal	Guildford Ct	2:44.29	23/11/25
7	Hamish Walker	Guildford Ct	2:45.15	14/06/26
8	Max Tao	Barnes SC	2:45.24	17/05/26
9	Jake Larkman	Leander	2:45.66	08/03/26
10	Charlie Precious	Redhill Marl	2:45.92	28/06/26

400m Individual Medley — Short course (25m)

Surrey Boys 12 years — 400m Individual Medley (SC)
#	Swimmer	Club	Time	Date
1	Deshler Speichert-Chahal	Guildford Ct	5:46.50	29/11/25
2	Sebastian Fongo	Guildford Ct	5:46.78	16/05/26
3	Max Tao	Barnes SC	5:53.27	16/05/26
4	Hugo Hunter	Dorking	5:55.07	04/07/26
5	Finley Keating	Guildford Ct	6:01.24	16/05/26
6	Alfred Storey	Epsom Dist	6:04.19	06/06/26
7	Rene Uzdin	Kingston Roy	6:09.56	06/06/26
8	Alvin Czajka	Kingston Roy	6:11.28	20/06/26
9	Michael Van Zyl	Epsom Dist	6:13.23	06/06/26
10	Julian Donchev	Dorking	6:17.52	18/05/26

Has this swimmer qualified?

Ranking well in Surrey usually means county qualifying times are within reach. See the full Surrey county qualifying times or check any swimmer against county, regional and national standards in one go.

Other Surrey age groups

Surrey Girls 10 years Surrey Boys 10 years Surrey Girls 11 years Surrey Boys 11 years Surrey Girls 12 years Surrey Girls 13 years Surrey Boys 13 years Surrey Girls 14 years Surrey Boys 14 years Surrey Girls 15 years Surrey Boys 15 years Surrey Girls 16 years Surrey Boys 16 years Surrey Girls 17 years