Sourabh Verma and Rituparna Das continued their impressive run as they progressed to the quarter-finals of the Russia Open tournament here yesterday. Also making it to the final eight were Mithun Manjunath, Subhankar Dey and Vrushali Gummadi in singles, while the men's doubles pair of Arun George and Sanyam Shukla and the two mixed doubles combination of Rohan Kapoor and Kuhoo Garg and Saurabh Sharma and Anoushka Parikh also entered the quarter-finals.

Sourabh trounced Russia's Sergey Sirant 21-11, 21-9. Rituparna had to dig deep into her reservoir to eke out a 13-21, 21-17, 21-19 win over second seed Ying Ying Lee of Malaysia.