Her victory is the first time the title has been won by a woman over 30 since Martina Navratilova 's triumph in 1990 and restores Victoria Azarenka to the world number one spot .
Victoria Azarenka is the Belarussian she beat in the semi-final .
Her victory is the first time the title has been won by a woman over 30 since Martina Navratilova 's triumph in 1990 and restores Victoria Azarenka , the Belarussian she beat in the semi-final , to the world number one spot .