Emirates Team New Zealand took two giant steps towards winning the Louis Vuitton Cup by beating fellow finalists Luna Rossa in races four and five.
The first three races were a bit of a damp squib as all were decided by problems with the boats and wind limits.
But it was plain sailing in four and five. Both races started as scheduled and both crews completed the course without incident.
The Kiwis, however, were the ones to make better use of the 12 to 17 knot winds on San Francisco Bay.
Skipper Dean Barker and his crew now lead the best-of-13 final 4-1 and could wrap up the series as soon as Sunday.
Emirates Team New Zealand won the previous Louis Vuitton Cup in 2007 against Luna Rossa in a 5-0 sweep.
Although a clean sweep is off the cards this time around the Kiwis need just three more victories to book their ticket to compete against defending champions Oracle Team USA in the 34th edition of the America’s Cup next month.
Race six takes place on Friday.