Nottingham | Osaka looking strong
Naomi Osaka, seeded 3, reached her maiden quarter-final on grass at a WTA when she defeated Denisa Allertova 6-3 6-2 at the Nature Valley Open in Nottingham.
The Czech started to put pressure confidently on the Japanese’s serve but from 3-2 in the opening set she lost seven games in a row and Osaka easily sailed towards her 13th career win on grass.
The Indian Wells champion, aiming for the 60th WTA win and her second semi-final of the year, will meet for the first time Mihaela Buzarnescu, the fifth seed who edged past Irina Falconi 6-3 5-7 6-3 winning on a dead net-cord on match point.
Mona Barthel upset the No.2 seed Magdalena Rybarikova, who was bidding for her 10th win of the season and her 35th on grass.
The German, who lost to the former Wimbledon semi-finalist 6-3 7-6(5) in the first round of Miami in 2013, avenged that defeat and completed a 6-3 1-6 7-5 victory, her 14th against a top 20 opponent.
In her third WTA quarter-final of the season, Barthel will face Vera Lapko or Donna Vekic. Dalila Jakupovic beat Magdalena Frech in their first meeting.
The Slovenian made the second career WTA quarter-final after her maiden semifinal run in Bogotà last April with a 6-4 6-3 win over the 20-year-old Frech who scored her first WTA-level victory at Roland Garros against Christina McHale.
In the women’s doubles, Britain’s Heather Watson and Romania’s Mihael Buzarnescu moved into the quarter-finals with a 1-6 6-2 10-4 win over the pairing of Ukraine’s Lyudmyla Kichenok and Russia’s Alla Kudryavtseva.
But Laura Robson, along with Chinese Taipei’s Chan Hao-ching, were eliminated losing 7-6(6) 7-6(1) to Lizette Cabrera of Australia and Irina Falconi of the United States.
A number of British women were in action in the last 32 of the women’s singles at the Manchester Trophy.
Seventh seed Naomi Broady lost 7-6(5) 6-1 to Ons Jabeur of Tunisia and Samantha Murray was beaten 6-1 6-3 by Thailand’s Luksika Kumkhum.
But Harriet Dart reached the last 16 after a 6-3 3-6 6-1 win over fellow Briton Emma Raducanu, with Sarah Beth Grey also winning 6-3 7-6(4) over compatriot Eden Richardson.
Katy Dunne won the first set against American fourth seed Nicole Gibbs but then suffered a 6-3 5-7 5-7 loss while Emily Appleton lost 7-6(7) 6-1 to Marie Bouzkova of the Czech Republic.