For the fourth successive year a Queensland victory set a new record for consecutive State of Origin titles, reaching seven.
[3] This game set a new record for the highest television audience in Australia for a rugby league match since the introduction of the OzTam ratings system in 2001.
[4] In 2012, the first year of the independent Australian Rugby League Commission, a new rule was put into place that would set out earlier in a player's career which was his state of origin.
2012 also saw the inaugural Under 20s State of Origin match which was played at Centerbet Stadium, with New South Wales taking out the Darren Lockyer Shield against Queensland.
The opening game for the New South Wales Blues saw Todd Carney, James Tamou, Tony Williams and Jamie Buhrer make their debuts, with all either having previous international representative or grand final experience.
Michael Jennings was the first Origin player in 29 years to be selected to the squad after playing in the reserve grades, where he was dropped from the Penrith Panthers for one game due to poor off-field discipline.
It was hooker Cameron Smith's first match and series as the permanent captain for his state, having previously filled in for the role only in Darren Lockyer's absence.
The Maroons scored shortly afterwards, with winger Darius Boyd touching down in the corner and Johnathan Thurston converting to give Queensland a 6–4 lead.
Grant was included to partner James Tamou as starting props, with captain Paul Gallen moved back to his preferred position at lock and Greg Bird subsequently shifted to second row with Luke Lewis to the bench to replace Jamie Buhrer.
The announced Queensland side remained unchanged, however afterwards Sam Thaiday was forced to withdraw due to injury and was replaced by David Taylor, allowing Corey Parker to enter the squad.
A late converted try by Ben Hannant after a bomb kick was misread by the New South Wales backline saw Queensland lead 6–4 at half-time.
Brent Tate almost scored a try in the 70th minute, but Michael Jennings knocked the ball out of his grasp in the in-goal area to save the try.
Seven minutes into the second half, Brett Stewart pounced on a Robbie Farah grubber kick into the Queensland in-goal and scored his third try of the series for the Blues just before the ball went dead; Carney converted the try to reduce the margin to 16–14.
Maroons halfback Cooper Cronk kicked a field goal from 40m out to put Queensland ahead by one point with six minutes remaining.
Johnathan Thurston's try in the 32nd minute of Game III saw him pass former New South Wales player Michael O'Connor (1985–91) as the second highest point scorer in Origin history.
2 - Billy Slater was originally selected to play but withdrew due to a knee injury sustained during Game II.