St. Louis and Pittsburgh share the division lead once again. The Pirates topped the Cubs 2-1.
The Cardinals mustered only three hits, including Matt Carpenter's league-leading 50th double in the eighth. He later scored on a wild pitch by Charlie Furbush.
Franklin Gutierrez hit a two-run double in the fifth inning that ended St. Louis rookie Michael Wacha's scoreless streak at 23 2-3 innings. Kendrys Morales hit his 22nd homer in eighth off Tyler Lyons to make it 3-0.