Los Angeles clinches the NL West title with a 7 – 6 win over Arizona at Chase Field. The D-Backs are miffed when the Dodgers’ players celebrate the event by climbing the right-center field wall and jumping into the pool there for an improvised party, a gesture the home team finds disrespectful. Hanley Ramirez homers twice for L.A. then leaves the game early because of a strained hamstring that has been bothering him all season.

Boston also clinches a postseason slot after defeating the Orioles, 3 – 1, as John Lackey pitches a two-hit complete game. The Sox’s magic number to ensure they win the AL East title is down to 1.