Matt Carpenter hit a three-run homer in St. Louis' six-run fourth inning, and the Cardinals beat the Kansas City Royals 11-3 on Monday night for their third consecutive victory.
Paul DeJong and Kolten Wong also connected for the Cardinals, who returned to .500 at 56-56. Carlos Martinez (8-9) pitched eight innings of two-run ball for just his second win in his last nine starts.
St. Louis also got some help from Kansas City during its outburst in the fourth. Ian Kennedy (4-8) walked No. 9 hitter Greg Garcia on five pitches with the bases loaded, and shortstop Alcides Escobar and catcher Drew Butera each committed an error.