Fareham Nomads swimmers accumulated over 100 personal best times in two days of competition at the age group BAGCAT championships at Waterlooville.
The youngest was Jonathon Sheppard, who was third in the nine years category, while the eldest were 14-year-olds Dan Hughes and Jamie O'Donnell.
Sophie Teasdale, 11, was the undoubted star.
She entered 13 events, swam 11 pbs and set 11 Championship best performances.
The 100m Freestyle and 200m Individual records, which had stood since 1993, were beaten by two and eight seconds respectively.
Other vast improvements on previous best performances came in the 200m Backstroke (nine seconds), 400m Freestyle (18 seconds) and the 800m Freestyle (40 seconds).
She amassed a total of 3,481 points for her five best swims - some 270 ahead of her nearest rival Kirsty Harkness.
Fareham's OJ Wright was second in the 13 years group.
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