A huge nosedive for Oracle.
That slows down Oracle. Can Team NZ pass?
The lead is now just 15m. That hurt Oracle as they turned mark 2.
One mistake and Team NZ are right back in it.
The boats are side by side.
And they tack away from each other.
Oracle head towards the shore. Team NZ the other direction.
That was a heavy nosedive for Oracle. Not as dramatic as Team NZ against Luna Rossa but not too different.
Oracle still have the edge it seems.
Team NZ forced to tack away and remain behind Oracle.
Oracle up by 125m. They have done very well to protect the left hand side and they look in a good position to take this race.
A gain for Team NZ as the boats meet in the middle of the course, but Oracle still in the lead.
The boats eye the top mark. Oracle in the box seat.
Team NZ will need another Oracle mistake to have any chance of winning this one.
Oracle remain in a good position as they eye the top mark. Team NZ haven't been able to repeat race 3 and make a pass on the upwind leg.
Oracle head around the top mark in the lead and a much better turn by Team USA.
Team NZ 16 seconds behind.
Some serious air there for Team NZ as they foil around the mark. Now what for Team NZ? They haven't been able to do much downwind.
But Oracle in the box seat. Still up by 170m
All Team NZ can do is just try and pressure Oracle into a mistake.
"One mistake away" says Barker.
Both boats need to gybe twice.
Team NZ go first, followed by Oracle.
Lead remains around 140m.
Oracle looking set to score their first point.
Both boats are flying downwind as they head to mark 4 before the short sprint to the finishline.
Oracle head around mark 4. NZ right behind.
Oracle going to collect their first point, Team NZ about to taste defeat for the first time in San Fran.
Oracle win race 4. - Team NZ 3 - Oracle -1.
And Oracle are very happy with that. Game on!
So Oracle hit back after the earlier defeat. We have a regatta on our hands indeed. The next two races will be on Wednesday.
Keep an eye out for all our racing coverage from Dana and Paul in San Fran.
Thanks for joining our coverage. We'll be back on Wednesday for races 5 and 6. Coverage will begin at 8am. Join us then.