Hanley Ramirez’s bases-loaded single in the 12th inning sent the Red Sox to a walkoff 3-2 win over the Tampa Bay Rays in the Fenway opener Thursday. On an icy afternoon at the park, the Sox’ bats were cold until the bottom of the ninth, when they rallied from a 2-0 deficit to send the game into extra innings. The win was their sixth straight. More on Opening Day, C1.