It's never really "in the bag" until the Rays and Yanks are mathematically eliminated, but realistically the race right now is for 2nd place. The Sox have been playing their best lately, and at the right time. They've won a lot of tough games and they look nothing like the 2011 team did going through September.
I think they got the division, and I think they've gotta be the favs to win the WS at this point. Very solid rotation that's only going to get better when Buch's back, the bullpen usually has it under control, and Koji shuts it down every time he goes out. Mike Napoli is looking like he's one of the best hitters in baseball again, and when he gets hot, he usually doesn't cool off until the season's over. Could easily see him having a monster postseason like he did with Texas a few years ago.