We put three key questions to sailing reporters Paul Lewis and Dana Johannsen after Team New Zealand and Oracle Team USA split races 3 and 4 of the America's Cup today.
After three races, it looked like Team NZ had it in the bag; do we now have a genuine race on our hands?
Paul: Yes, crew performance was always going to be an issue and, in race 4, Oracle Team USA sailed better and Team NZ made some mistakes, especially on their favoured upwind beat. All that technology - but the sailors still make it work.
Dana: It was always going to be unlikely that one team would get through the Cup match unbeaten. But the relative performances of the two boats shows that the regatta is going to be extremely competitive. Team NZ looked a bit jittery in the windier conditions in race four, I have to say.
If you find yourself behind, is the upwind leg your only realistic chance of passing?