Great Britain one win from Louis Vuitton Cup final
Ineos Britannia moved to within one win of reaching the Louis Vuitton Cup final as they claimed two more victories on Sunday.
Ben Ainslie's British team lead Switzerland's Alinghi Red Bull Racing 4-0 in their semi-final.
Luna Rossa Prada Pirelli's Italian team also lead New York Yacht Club American Magic 4-0 in the other semi.
The winner of the Louis Vuitton Cup will compete against defending champions New Zealand for the America's Cup - the oldest international trophy in sport.
"[These are] fantastic conditions out here in Barcelona, it's a lot of fun to sail these yachts and impressive performance all round," said Brittania helmsman Dylan Fletcher.
"The team's doing a fantastic job and we just need to keep pitching forwards and working hard."
The British boat avoided a pre-race collision with their Swiss counterparts to claim victory by over two minutes in the first meeting before doubling their advantage in the second.
Racing resumes on Monday with both the British and Italian teams needing just one more victory to reach the final, which will take place from 26 September to 7 October.
The 37th America's Cup, meanwhile, will be staged from 12-17 October.