Fourth seed Agnieszka Radwanska stormed to her 11th straight win of the year at the Australian Open on Wednesday as the Pole built on her sizzling start to the season.
Radwanska won lead-up events to the opening Grand Slam of 2013 in Auckland and Sydney and has carried her red-hot form into Melbourne, completing a 6-3, 6-3 victory over Romania's Irina-Camelia Begu in 86 minutes.
She next faces either Kazak Ksenia Pervak or Britain's Heather Watson as she aims to improve on her three quarter-final appearances in Melbourne.
The world number four started slowly and was broken by Begu in her first service game before rattling off five games in a row to be 5-1. Begu rallied but lost the set in 46 minutes.
The Romanian, who has never gone further than the second round in eight Grand Slam appearances, needed a medical timeout ahead of the second set for a problem with her right shoulder, her service arm.
She returned to the court but was immediately broken by Radwanska, whose younger sister Urszula was knocked out of the tournament on Tuesday.
Begu dragged herself into the match by breaking back in the sixth game, only for the Pole to break her again and comfortably close out the showdown on Rod Laver Arena.