Baseball Digest Daily has created a new stat/ranking called ASTRO (Adjusted STrength of Remaining Opponents). It ranks teams by difficulty of remaining schedule.

Of the three teams we currently care about (Rangers, Red Sox, Angels), the Angels have the most difficult schedule remaining. They actually have the seconds most difficult schedule after the poor Royals. The Rangers schedule is pretty tough too, as they just break into the top 10. The Red Sox check in at number 18.

Angels: .557
Rangers: .516
Red Sox: .490