It was the second-to-last QS event and Christie will need to produce a massive result in the Vans World Cup in Oahu, scheduled to start tomorrow, if he is to re-qualify for the 2016 Championship Tour through the QS.
His ninth-equal finish earned him 3700 points and bumped him up 16 places into 39th.
He has 12,700 points — 8600 off 10th place and automatic requalification for the CT next year.
Christie has to win the Vans World Cup and claim the 10,000 points to have any chance of making a late entry into the top 10.
The event will be followed by the last CT event of the year — the Pipeline Masters, which starts on December 8.
Christie is 30th in his rookie year on the CT and well adrift of the top 22 spot needed to requalify for the 2016 tour.