Cubs 5, Cardinals 0
ST. LOUIS — John Lackey struck out 11 in seven innings of four-hit ball against his former team and had an RBI single. Jayson Heyward, playing at Busch Stadium for the first time since leaving to sign with the Cubs, was 0-for-4 and was booed throughout. Chicago is a major league-best 10-3 and off to its best start since 1970. It has won 15 of its past 16 regular-season road games.