 In June 2007, he and Chvojka lost in the first round of the UniCredit Czech Open, which was Pospisil's first ATP Challenger event.In November 2008, he won the Challenger Banque Nationale de Rimouski doubles title with compatriot Milos Raonic and two more ITF Futures doubles titles.In May 2009, Pospisil and partner Adil Shamasdin won the Mexico F4 and F5 doubles titles, as the tournament top seeds.