Former Wimbledon champion Petra Kvitova and 2009 US Open runner-up Caroline Wozniacki withstood challenges from tenacious Asian rivals to reach the second round of the US Open on Tuesday.
With world No.1 Novak Djokovic waiting for a night opener and 17-time grand slam champion Roger Federer having his start pushed back by rain, women took centre stage in the early going at Arthur Ashe Stadium.
Czech seventh seed Kvitova, the 2011 Wimbledon winner, fought off Japan’s 92nd-ranked Misaki Doi 6-2 3-6 6-1 while Danish sixth seed Wozniacki dispatched 133rd-ranked Chinese qualifier Duan Ying-Ying 6-2 7-5.
Djokovic, a six-time Grand Slam champion who captured his fourth Australian Open crown earlier this year, launches his quest for a fourth consecutive US Open final when he faces Lithuanian Ricardas Berankis.
Seventh-seeded Swiss star Federer, at his lowest spot in the US Open order since 2002, will face Slovenia’s Grega Zemlja in a match postponed from Monday due to rain.
Duan made 46 unforced errors but kept pressure on Wozniacki, who battled to avoid a repeat of last year’s US Open first round ouster while boyfriend Rory McIlroy, a two-time major golf champion, watched from the stands.
“She just went out and hit on every shot,” Wozniacki said. “If she was in the court or not, it was going 100 mph. I had to keep going. I had to fight for every point. She couldn’t keep up that level forever.”
Doi, a 22-year-old left-hander whose only prior US Open appearance ended with a 2011 first-round cramping retirement, tested Kvitova in breezy conditions.
“The wind was quite difficult for us both,” Kvitova said. “In the first round of grand slams it’s difficult all the time so you have to be focused. I didn’t play my game all the match. I didn’t have focus. I have to have more confidence.”
The US Open is the only grand slam event where Kvitova, who booked a second-round match against Serb Bojana Jovanovski, has not reached the semi-finals, her best runs being to the fourth round in 2012 and 2009.
Kvitova is the highest-ranked rival in the quarter of the draw with Belarus second seed Victoria Azarenka, who begins her quest for a return to the US Open final later against German Dinah Pfizenmaier.
Serb 13th seed Ana Ivanovic, the 2008 French Open winner, beat Georgian Anna Tatishvili 6-2 6-0 in 58 minutes. She faces Romanian Alexandra Dulgheru next.
Russian 14th seed Maria Kirilenko ousted 2009 US Open semi-finalist Yanina Wickmayer of Belgium 6-1 6-1.
The boyfriend of injury-sidelined Russian women’s star Maria Sharapova, Bulgarian 25th seed Grigor Dimitrov, was eliminated by Portugal’s Joao Sousa 3-6 6-3 6-4 5-7 6-2.
Canadian 10th seed Milos Raonic fired 28 aces in beating Italy’s Thomas Fabbiano 6-3 7-6 (8/6) 6-3, while US 13th seed John Isner blasted 16 aces to down Italy’s Filippo Volandri 6-0 6-2 6-3.
Argentine qualifier Maximo Gonzalez upset 14th seed Jerzy Janowicz 6-4 6-4 6-2 as the Wimbledon semi-finalist from Poland struggled with back pain.