NSW have some statistical omens on their side going into their daunting assignment in the State of Origin series decider against Queensland in Brisbane.

Ricky Stuart's Blues are well aware they'll face a hostile crowd and champion Queensland team, fired up to send captain Darren Lockyer out a winner in his Origin farewell on Wednesday at Suncorp Stadium.

But they may take some small comfort from the fact that the away team has won the final game of every Origin series from 2005 - including three which decided that year's victor.

NSW won the third game decider 32-10 at Suncorp in 2005 to start the run, while Queensland started its record streak of five straight series triumphs the following year, taking the clincher 16-14 in Sydney.

And so it went.

NSW won at Suncorp in 2007, Queensland won at ANZ Stadium in another series decider in 2008, NSW won a fiery clash at Suncorp in 2009 and Queensland was victorious at ANZ last year to complete a whitewash.

If the sequence continues, it will be NSW at Suncorp in 2011.

Interestingly, the last time NSW won a series, in 2005, they were behind at halftime in game two, just as they were in Sydney last month, before going on to win the decider in Brisbane.

The coach for that series was Ricky Stuart.

Both those games were played on the same dates as games two and three of this year's series.

"It's an interesting stat," said rugby league statistician David Middleton.

"They (statistics) give people hope but, most of the time, they're just waiting to be broken."

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