Not too impressed with the tactics on Oracle. They had a nice lead in race three and then threw in an extra tack to chase ETNZ to the starboard boundary. ETNZ tacks and Oracle lets them go. Two extra tacks to let them go. Just giving it away.
That got ETNZ back in the race and just close enough for Oracle to forget that they couldn't force ETNZ to tack back onto starboard when they where at the boundary. By the time Oracle realized what was going on they had to throw in a bad tack and the wrong time and race over.
It's less about tacking speed and acceleration and more about not making dumb mistakes.
The crowning moment was Oracle tacking away when they where bow out and in front of ETNZ. You don't win races like that.