Top-seeded American pair Liezel Huber and Bob Bryan won their second Grand Slam title in mixed doubles.
They beat unseeded Kveta Peschke of Czech Republic and Aisam-ul-Haq Qureshi of Pakistan 6-4, 6-4 on Thursday.
Huber and Bryan also won last year's French Open. Each also has more doubles to play.
Bryan will face Qureshi again in Friday's men's doubles final. Bryan teams with twin brother Mike and Qureshi plays with India's Rohan Bopanna.
Huber and Russia's Nadia Petrova, seeded second, are in the women's doubles semifinals.
Bryan said after Thursday's match that the brothers' foundation was donating money to Pakistani flood relief.
