Here are this week's rankings:
1. Houston Astros (46-24 overall record, No. 1 ranking last week) -- They're 5-8 during the past two weeks, but that's really not all that bad considering their top two starters, Dallas Keuchel and Lance McCullers, are on the disabled list.
2. Colorado Rockies (46-26, No. 4) -- They're atop baseball's toughest division, the National League West. It's the first time a division has had three teams with a winning percentage of .600 or better this late in the season since June 21, 2010 in the American League East.
