Third-seeded Sam Querrey topped Fritz Wolmarans 6-4, 6-4, while eighth-seeded Bjorn Pfau beat Greg Jones 4-6, 7-5, 6-1 in first round matches. In a second-round match, Ivo Karlovic beat Robert Farah 7-5, 6-2. In other matches, Alex Kuznetsov beat Izak …