Each week during the season Athlon Sports looks at the best and worst baseball teams and players in the league. Here's our MLB Power Rankings and Players of the Week for July 30, 2012.

  1. Reds—Everything falling into place in Cincinnati.

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A’s
A’s, as in the Oakland Athletics, are in a pennant race for the first time since 2006. We have the second wild card to thank for this, but the no-name A’s have been the hottest team since July 1. It’s amazing what can be accomplished when you assemble a competent pitching staff.

Each week during the season Athlon Sports looks at the best and worst baseball teams in the league. Here's our MLB Power Rankings for July 23, 2012.

  1. Rangers—Still the scariest team in the American League.

Each week during the season Athlon Sports looks at the best and worst baseball teams in the league. Here's our MLB Power Rankings for July 16, 2012.

  1. Rangers—All-Star Matt Harrison pitching like Cy Young Matt Harrison.

Each week during the season Athlon Sports looks at the best and worst baseball teams in the league. Here's our MLB Power Rankings for July 9, 2012.

  1. Rangers—Scored fewest runs so far in July.

Each week during the season Athlon Sports looks at the best and worst baseball teams in the league. Here's our MLB Power Rankings for July 2, 2012.

 1. Rangers—First team to win 50 games.

Each week during the season Athlon Sports looks at the best and worst baseball teams in the league. Here's our MLB Power Rankings for June 25, 2012.

 1. Rangers—Three players on pace to drive in more than 100 runs.

Each week during the season Athlon Sports looks at the best and worst baseball teams in the league. Here's our MLB Power Rankings for June 4, 2012.

 1. Rangers—Roy Oswalt signing makes the best even better.

Each week during the season Athlon Sports looks at the best and worst baseball teams in the league. Here's our MLB Power Rankings for May 29, 2012.

 1. Dodgers—Scored six or more runs in seven of last 10 games.

Each week during the season Athlon Sports looks at the best and worst baseball teams in the league. Here's our MLB Power Rankings for May 21, 2012.

 1. Dodgers—Won 9 of 11, five of them without Matt Kemp.

 2. Orioles—Closing in on June with best record in American League.