David Ortiz hit a three-run homer on a full count with two outs in the bottom of the ninth inning to give the Boston Red Sox a 6-4 victory over the Baltimore Orioles on Thursday. The Orioles took the lead in the top of the ninth without hitting a ball out of the infield against Keith Foulke (3-3), scoring the tiebreaking run when Rafael Palmeiro beat out a potential double-play ball. But Mark Bellhorn reached on an infield single to third with one out in the bottom half and, with two outs, Edgar Renteria bunted for a single.