JO Jackson, Hannah Miley and James Goddard all added to their victories on Saturday at the Mare Nostrum with further first-place finishes on the second day in Barcelona.
World record holder Jackson, from Richmond, scorched to victory in the 400metres freestyle in four minutes 5.90 seconds to add to the 800m title she won on Saturday, both efforts a new meet record.
Olympic open water medallist Cassandra Patten was third, almost seven seconds adrift.
Miley added the 200m individual medley title to the 400m equivalent she claimed yesterday in 2mins 12.29secs ahead of fellow Briton Keri- Anne Payne in 2:13.85.
Goddard also added the 400m IM crown to the equivalent over four lengths when he won in 4:23.70.
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