NEW HAVEN, Conn. (AP) A little rain couldn't stop top-ranked Caroline Wozniacki from winning her fourth consecutive New Haven title, beating Czech qualifier Petra Cetkovska 6-4, 6-1 Saturday on the Yale campus.

Wozniacki, the top seed at next week's U.S. Open, improved to 17-0 in the tournament. It changed its name from the Pilot Pen and became a WTA-only event this year.

Cetkovska, who is ranked 40th, had won seven consecutive matches since the start of qualifying. She beat the tournament's fifth seed Agnieszka Radwanska, fourth seed Marion Bartoli and second seed Li Na. She couldn't stop Wozniacki, who also is the top seed at the U.S. Open.

The match, moved to 1 p.m. from 5 p.m. to avoid Hurricane Irene, was played outdoors at the Connecticut Tennis Center. It included a 1 hour, 40 minute rain delay in the first set.