The Orioles used a four-run sixth to turn the tables on the Red Sox, along solid relief pitching and a career night from Nelson Cruz, who had five hits and fell a triple short of the cycle. The result, a 7-4 win that gave them a doubleheader split with the Red Sox — coupled with the Blue Jays’ loss to the A’s — has the Orioles (47-40) alone atop the American League East.