The in-form Scot, who won back-to-back titles in Bangkok and Tokyo, suffered a slight wobble when leading 5-0 in the deciding set before closing out victory.
With several top names already departed in his half of the draw the world number four now looks a hot favorite to retain his title at the Qi Zhong Tennis Center.
Third seed David Ferrer also moved into the last eight after saving three match points in a 1-6 7-5 6-2 victory over fellow Spaniard Juan Carlos Ferrero -- a victory that also sealed his place in the ATP World Tour finals in London next month.
Only three spots are now left for the eight-man tournament.
Murray marched through the first set against Wawrinka but went off the boil in the second as errors began to flow.
However, he took charge in the d ecider to forge into a 5-0 lead before the 19th ranked Wawrinka staged a late fightback.
Murray, unbeaten since losing to Rafa Nadal in the U.S. Open semi-finals, ended the contest with a forehand winner.
He will face either Frenchman Gilles Simon or Australia's Matthew Ebden in the quarter-finals while Ferrer is up against American Andy Roddick after he overcame Nicolas Almagro 6-3 6-4.
World number two and top seed Nadal plays German Florian Mayer later Thursday.
{ 0 comments... Views All / Send Comment! }
Posting Komentar