Leander Paes [ Images ] continued his winning run to advance to the mixed doubles' semifinals but it was curtains for Mahesh Bhupathi [ Images ] at the US Open [ Images ].

Paes, already through to the men's doubles quarterfinals with partner Czech Lukas Dlouhy [ Images ], teamed up with Zimbabwean Cara Black [ Images ] in the mixed doubles competition.

The fifth-seeded duo defeated the Czech pair of Martin Damm [ Images ] and Vladimira Uhlirova 7-5, 6-2. Paes and Black will now take on the Swedish-Russian team of Jonas Bjorkman [ Images ] and Nadia Petrova [ Images ] in the last-four stage.

Bhupathi, who was earlier ousted from the mixed doubles competition, crashed out of the men's doubles with a stunning third-round loss.

The Indian and his Bahamian partner Mark Knowles [ Images ], seeded fourth, squandered a set advantage to go down 6-2, 4-6, 4-6 to unseeded Argentines Maximo Gonzalez and Juan Monaco in the third round of the season's last Grand Slam.

There was further disappointment in the junior section where fifth seeds Yuki Bhambri [ Images ] and Serbian partner Filip Krajinovic lost 1-6, 6-5, 7-10 to Zimbabwe's Takanyi Garanganga and Egyptian Karim-Mohamed Maamoun in the first round.