Skipper James Spithill says Oracle Team USA are on a huge roll after a fifth successive victory over Team New Zealand in the America's Cup.
The 33-second win in the only race sailed on San Francisco Bay on Tuesday (AEST) closed the gap to 8-6, and leaves Team NZ heading into a sixth day sitting on match point.
"We've really got a huge wave of momentum now," Australian Spithill said.
"The guys have been working very, very hard. Again last night, the shore team were there till the early hours of the morning and the boat is just going fantastic."
Oracle again had the upper hand at the start line despite having come in from the less favoured starboard side.
Team NZ skipper Dean Barker admitted to frustration at not being able to make more of the port-entry advantage in the pre-start.
He and his crew were happy with their position as they hit the start, but Oracle had more speed off the line.
Barker said confidence remained the high despite the recent run of results.
"We're very upbeat here," he said.
"We know we can win. The Oracle guys sailed a pretty flawless race that time and we have had no opportunity to get back into it."
The late start because of light and fluky winds meant the day's second scheduled race did not go ahead and competition will resume with race 17 on Wednesday.
Oracle's latest win means they matched Team NZ in the number of victories at eight apiece.
The Americans began the regatta on minus-two as one of the penalties for illegal modifications in the 2012 lead-up series.
The pre-start began in winds of about 13-knots and the boats crossed the line roughly even, but with Oracle having greater acceleration and moving into a 5sec lead at the end of the short opening reaching leg.
Team NZ did well to keep the deficit down on the first downwind run, rounding the bottom mark 13s behind.
But they couldn't make any real dent into Oracle's advantage over the remainder of the journey.
