( CNN ) -- A battle of former World No.1 's in Tokyo saw Ana Ivanovic continue her 2014 renaissance with a fourth title of the year as she beat Denmark 's Caroline Wozniacki in the final Sunday . It 's been a fine year too for Wozniacki , capped by a runner-up spot to Serena Williams in the U.S.Open , but she proved second best to her Serbian opponent , who won 6-2 7-6 in the final of the WTA Pan Pacific Open . It stretched Ivanovic 's career tally over Wozniacki to five wins against two , the victory wrapped up in 99 minutes . `` It was a really good battle out there -- there were some very tough moments , especially in the second set , '' Ivanovic told the official WTA website . `` But I just tried to take it one point at a time , and I 'm really happy to make it through . It 's just an amazing feeling to win this title . '' Having taken the opener with three breaks of service , Ivanovic had trailed 3-1 early in the second , but fought back to level at 4-4 . It eventually went to a tiebreak , won 7-2 by Ivanovic , who wrapped up the title and the near $ 200,000 first prize with a forehand down the line , . `` I tried to serve and return well . I tried to play the first couple of balls out wide so she has to run for it , '' was the verdict of the beaten Wozniacki . `` Ana was playing very aggressively . '' While Ivanovic and Wozniacki have gone some way to booking their place in the end of season WTA Tour finals in Singapore , another former world number one , Victoria Azarenka of Belarus , has called quits on her season . Azarenka , who started the year second-ranked behind Serena Williams , has been plagued by a foot injury and has decided to withdraw from the remainder of this year 's tournaments to help her recovery . Azarenka has slipped to number 26 in the rankings after missing a string of tournaments , including the big money event in Wuhan , China which started Sunday . Seven-time grand slam champion Venus Williams was an early casualty at the tournament , going down in three sets to rising young French player Caroline Garcia . Garcia won a third set tiebreaker 8-6 after the initial two sets had been shared , her victory taking more than two-and-a-half hours , in a tie-break which finished 8/6 . She will now face Polish fifth seed Agnieszka Radwanska in the second round . Williams , 34 , has also shown improved form this season and arrived in China after losing in the Quebec City final to Croatia 's Mirjana Lucic-Baroni last Sunday .
Ana Ivanovic beats Caroline Wozniacki in Tokyo final . Fourth title of the year for former No.1 Ivanovic . Victoria Azarenka to miss rest of the year with foot injury . Venus Williams beaten in the first round in Wuhan .