New York:Leander Paes and Martina Navratilova have made it to the quarterfinals of the US Open mixed doubles. The eight seeds beat the Belgian-Czech pair of Eli Callens and Martin Damm 6-3 6-4. They are up against Maria Sharapova and Mahesh Bhupathi's doubles partner Max Mirnyi in the next round. Mahesh and his third seeded mixed doubles partner Lisa Raymond lost in the second round to the Aussie duo of Alicia Molik and Todd Woodbridge. Meanwhile, the doubles pair of Paes and David Rikl beat top seeded Todd Woodbridge and Sweden's Jonas Bjorkman 2-6 7-5 6-4 to move into the quarterfinals.