Winger Israel Folau scored two tries as Queensland beat New South Wales 16-10 in the decisive State of Origin match in Sydney.
The Maroons have now won the last three series, battling back from a 1-0 deficit in this one. They won the second match by a record-equaling 30-0 in Brisbane last month after the Blues won the opening game in Sydney 18-10 in May.
A crowd of more than 78,000 fans at the former Olympic stadium watched the hosts take the lead in the second minute with a penalty from Craig Fitzgibbon.
Folau scored the first try after an Anthony Quinn fumble off a Scott Prince cross-field kick fell into the winger's arms on the try line.
Prince was forced off with a suspected broken arm after just 15 minutes and as the half-back was running to the sidelines, New South Wales centre Matt Cooper scored, with Fitzgibbon's adding the extras from the sideline to put the Blues 8-4 ahead.
In the 22nd minute, Folau scored his second try, outjumping Anthony Quinn to pluck a pinpoint Thurston kick out of the air and plant the ball down. Jonathon Thurston missed the kick, leaving the score tied at 8-8.
Fitzgibbon gave New South Wales a 10-8 half-time lead with his second penalty in the 25th minute.
But Queensland kept the Blues scoreless after the break, levelling through Thurston's second penalty midway through the second half, before Billy Slater scored the match-winning try.