ATLANTA (AP) — Two-time defending champion John Isner ran his Atlanta Open winning streak to 10 matches Friday, riding his big serve to a 7-6 (4), 6-4 victory over Ricardis Berankis. The top-seeded Isner had 19 aces less than 24 hours after ripping off 33 in a two-set victory over Radek Stepanek.