American Magic can take confidence into this week's America's Cup World Series regatta in Auckland after dominating the final day of practice.
The US syndicate defeated both Team New Zealand and INEOS Team UK in practice races.
After several planned practice races were abandoned due to a lack of wind, Dean Barker managed to get a victory over his old team - their first loss of warm-up racing.
Beforehand Team NZ edged Luna Rossa in what was a mixed day for the defender, but Barker outfoxed the Kiwis in the windshifts in the last race of the day to claim a morale-boosting win for the American squad.
Also having a mixed outing was INEOS Team UK, with the struggles of the British syndicate having been an underlying theme of the warm-up period, with the team not completing a trial race until Tuesday, when they finally faced off against Barker's American Magic.
Ben Ainslie's team took no part last week and pulled out halfway through the pre-start on Monday against Team New Zealand, due to unspecified hardware problems.
They finally managed to complete a trial race and also won the start against American Magic, with Ainslie timing his run to the line perfectly.