Rain clears to let Caroline Wozniacki lift Rogers Cup
Both finalists were playing their second match in a matter of hours, having won their respective semi-finals in the earlier session, and it was Denmark's Wozniacki who coped best physically, comfortably beating her Russian opponent in one hour and 14 minutes.
Wozniacki saved seven out of eight break points, and won four out five of her own to swing the final in her favour.
Earlier, the second-seeded Wozniacki beat Svetlana Kuznetsova 6-2, 6-3, while No 8 seed Zvonareva advanced when her opponent, tenth-seeded Victoria Azarenka of Belarus, retired with a blister on her left foot. Zvonareva led 7-6 (8-6), 1-0.
Wozniacki and the 11th-seeded Kuznetsova completed a semi-final that began on Saturday but was cut short due to relentless rain that wiped out nearly all weekend matches and forced the tournament to be extended an extra day.
The Dane began the day with a 2-0, 0-15 lead over her Russian opponent.
Azarenka wasted a set point early in the second semifinal. She called for the trainer after dropping the opening game of the second set. She tried to walk on the foot, but immediately sat back down. She said the injury was not severe enough to keep her out of the US Open.
"It's just one of those things you can't do anything about," said Azarenka, who was in tears as she spoke to reporters after the match. "I tried to deal with it, but I couldn't continue."
Elsewhere, Nadia Petrova of Russia rallied to beat Varvara Lepchenko of the United States 1-6, 7-5, 6-1 in the opening round of the Pilot Pen tennis tournament at New Haven, Connecticut.
Petrova was a late addition to the field after an ankle injury forced Ana Ivanovic to withdraw.
Elena Dementieva almost missed the start of her first-round match and had to be tracked down on the practice courts. She then went out and beat Maria Jose Martinez Sanchez in straight sets, 6-1, 6-2. In the men's draw, Donald Young beat Stephane Robert 6-1, 6-2. James Blake plays later Monday, before the featured match between Dinara Safina and French Open champion Francesca Schiavone.
Rain also held up play condiderably at the Pilot Pen, pushing all of Sunday's scheduled matches to yesterday and others to today. Several qualifying matches began indoors at Cullman-Heyman Tennis Center after overnight rain, and another storm moved through in the afternoon, forcing the suspension of some first-round men's and women's matches and postponement of others.