After homering in a 7-2 loss earlier in the day in Game 1 of a doubleheader with the Chicago Cubs, Carpenter came off the bench in Game 2 and launched a pinch-hit homer in the seventh inning off Cubs reliever Randy Rosario.
Carpenter becomes the first player in Cardinals history to collect home runs (eight) in six straight games in a single season. Ben Zobrist went 4 for 4, Javier Baez had three hits and two RBIs, and Tommy La Stella also drove in two runs in the makeup of an April 16 rainout.
Carpenter hit a two-run homer in the second inning off Lester.
Chatwood appeared to be in trouble when the Cardinals loaded the bases in the fifth on two walks and a hit batter, leading to a mound visit from pitching coach Jim Hickey and his whole infield.
El polémico once ideal del Mundial de la FIFA
El XI del torneo presenta a los futbolistas elegidos por FIFA y entre ellos hay varias sorpresas. Lo que se trata de Juan Fernando , que es jugar al fútbol y dedicarse a eso, lo hago.
The Cubs then grabbed the lead with three straight singles in the bottom half.
The Cardinals finished with just two hits. He was added to the roster when the Cubs placed right-hander Anthony Bass on the 10-day disabled list as part of a flurry of moves before the opener. "It's a very mild oblique strain", general manager Michael Girsch said.
Cubs: LHP Jose Quintana starts Sunday for the first time since July 10.
"It's one of those days that's frustrating and you just have to give it everything you've got", Weaver said. "Nothing terrible", Maddon said.