WASHINGTON (AP) — In all nine of their meetings this year — regular and post-season — the Boston Celtics and the Washington Wizards have always won at home. So the Celtics, leading their best-of-seven Eastern Conference semifinal 3-2, might be feeling pretty good about where things stand at the moment. Because even if they can’t close things out tonight in Washington, they’ll get to host Game 7 on Monday, an advantage they earned by finishing with the No. 1 seed.