SINGAPORE -- Top-seeded pairing Martina Hingis and Sania Mirza cruised to the doubles title at the WTA Finals with a 6-0, 6-3 victory Sunday against the Spanish duo of Garbine Muguruza and Carla Suarez Navarro.

The title capped an impressive year for Hingis and Mirza, who only started playing together in March and claimed nine titles this year, including at Wimbledon and the US Open.

Mirza was the defending champion having won the title with Cara Black of Zimbabwe last year.

Hingis last played in a WTA Finals title match 15 years ago. The victory is Hingis' 50th career doubles title, and her third (1999 and 2000) at the season-ender.

Hingis and Mirza never dropped a set and won the title match in a swift 66 minutes.