Cincinnati, OH (Sports Network) – Colby Rasmus belted a grand slam in support of Adam Wainwright’s seven scoreless innings as St. Louis downed Cincinnati, 6-1, to complete a three-game sweep and move into sole possession of first place in the National League Central.

Wainwright (17-6) put together another dominant performance, as he allowed just two hits, did not walk a batter and struck out four for the Cardinals, who lead the season series, 10-5.

Skip Schumaker had three hits and drove in a run and Jon Jay added a pair of hits and a run scored for St. Louis, which has won five of its last six contests.

Bronson Arroyo (12-7) lasted five innings, giving up four runs on six hits while walking three and striking out two for the Reds, who were last swept in a three-game series June 18-20 in Seattle.