Cilic has yet to drop a set so far in reaching his third ATP final. He will next meet fellow Croat and second-seeded Mario Ancic or Jan Henrych of the Czech Republic, who play their semifinal later in the day.
"It was a good match for me,'' Cilic said. "When I won the fifth game of the first set and made a break, everything turned fine.''
Cilic won his two previous finals, in New Haven last year and Chennai, India, earlier this year.
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