Indian shuttlers continued their good run at the Canada Open with six singles players, including Ajay Jayaram and H S Prannoy, and four doubles pairs reaching the quarterfinals of the Grand Prix badminton tournament, in Calgary, CANADA.Top seed Ajay Jayaram brushed aside Austria's David Obernosterer 21-10, 21-12 to set up a clash with fellow Indian Harsheel Dani, who defeated another India shuttler Pratul Joshi 21-9, 21-18 in a men's singles match.In another pre-quarterfinal match, second seed H S Prannoy eked out a hard-fought 21-18, 18-21, 21-12 win over Canada's BR Sankeerth.Fourth seed B Sai Praneeth, too, reached the quarterfinals after beating Canada's Wenchao Shi 21-19, 21-12.In women's singles, 2015 National Champion Ruthvika Shivani Gadde edged past Austria's Elisabeth Baldauf 24-22, 21-18, while Senior Nationals runners-up, Tanvi Lad saw off USA's Maya Chen 21-14, 21-15.In the doubles event, Rio-bound women's doubles pair of Jwala Gutta and Ashwini Ponnappa and top seeded men's doubles pair of Manu Attri and B Sumeeth Reddy advanced to the quarter finals.Mixed doubles pair of Manu Attri and Ashwini Ponnappa and another Indian women's doubles pair of Jakkampudi Meghana and S Poorvisha Ram have also entered the quarters.