• Holder Agnieszka Radwanska has no answer to world No1’s aggression • Cibulkova beats Kuznetsova in three sets to set up final in Singapore

Angelique Kerber continued her relentless march towards a maiden WTA Finals crown with a 6-2, 6-1 victory over Agnieszka Radwanska, the defending champion, to set up a title showdown against Dominika Cibulkova.

The German enjoyed a breakthrough campaign with victories at the Australian and US Opens to usurp Serena Williams at the top of the world rankings, and after another dominant display, she will be favoured to cap her season with the Singapore title on Sunday.

“I was trying to be focused on every single point because playing against her is so tough, so I just made sure I played my game and was aggressive,” Kerber said. “It’s amazing to think that I will be in the final in Singapore.”

Both players are renowned for their exemplary defence and supreme athleticism but, with serving not considered their strongest suit, it was hardly surprising to see the match start with three successive breaks in favour of the German. Kerber gave her Polish opponent no free points, got everything back and forced Radwanska into playing an extra shot on every rally. The constant pressure lead to another break in the seventh game, enough for Kerber to claim the opening set.

Radwanska struggled to come up with any answers as Kerber ran away with the contest against her dispirited opponent with four more breaks of serve.

In the first semi-final, Cibulkova continued her dream debut at the elite eight-woman event with a thrilling 1-6, 7-6, 6-4 victory over Svetlana Kuznetsova in an absorbing encounter.

The 27-year-old Slovakian, who had won their past five meetings, threatened on Kuznetsova’s first service game, but some booming forehands bailed out the Russian, who edged ahead when she broke in the third game.

Kuznetsova was now pushing Cibulkova all around the court and forcing her into errors and secured two more breaks to complete a run of six successive games to wrap up the opener.

Cibulkova stepped up her intensity in the second set and, as the tension mounted, neither player was capable of holding serve and four consecutive breaks from the ninth game sent it to a tiebreaker. Cibulkova maintained her aggression in the tiebreak, sprinting 6-2 ahead as Kuznetsova struggled to keep pace and the Slovakian sent the contest into a decider when she rifled a backhand winner past her static opponent.

The third set was punctuated by several swings in momentum before Cibulkova followed up a gutsy hold from 15-40 in the ninth game to seal victory with another break. “This is my first time here and it’s one of my dreams come true, just incredible,” the world No8 said.

The final is a rematch of their opening round-robin match last Sunday, when Kerber defeated the Slovakian 7-6(5), 2-6, 6-3, the only contest of the week where the German lost a set.