Christina Mchale.

US 24-year-old Christina McHale won Japan Women's Open WTA Tournament in Tokyo after coming back from one set down to beat Czech Republic's Katerina Siniakova 3-6, 6-4, 6-4. 
McHale, ranking worlds53rd won her first WTA title in the second final she plays since turning professional in 2007. 
In 2014 McHale lost her firs final in Acapulco for the Czech Dominika Cibulkova.

Source : QNA