She also won the tournament 2012 .
The loss snapped an 11 - match winning streak for Kvitova in New Haven , where the Olympic bronze medalist was looking to join Venus Williams and Caroline Wozniacki as four - time winners .
Caroline Wozniacki also won the tournament 2012 .
The loss snapped an 11 - match winning streak for Kvitova in New Haven , where the Olympic bronze medalist was looking to join Venus Williams and Caroline Wozniacki as four - time winners .