Paul Goldschmidt hit a two-run homer and Tyler O'Neill added a three-run blast in the 11th inning to lift the visiting St. Louis Cardinals over the Milwaukee Brewers 6-1 Tuesday night.
The Cardinals won for the 14th time in 18 games to increase their National League Central lead to three games over the second-place Brewers.
Cardinals starting pitcher Kwang Hyun Kim allowed one run on five hits and one walk in 5 1/3 innings.
Alex Reyes (2-0), the fifth Cardinals pitcher, worked the last two innings to earn the victory.
Brewers starting pitcher Freddy Peralta held the Cardinals to one hit in his seven scoreless innings. He struck out eight batters and walked only one.
Brad Boxberger (0-1), the fifth Brewers pitcher, allowed the five 11th-inning runs, four earned, while taking the loss.
Dylan Carlson drew a one-out walk for the Cardinals in the first inning and advanced on a hit-and-run grounder. Kolten Wong greeted Kim with a leadoff double in the bottom of the inning.
But neither runner could advance and the pitcher's duel was on.
Tommy Edman hit a two-out single and stole second base in the third inning, but Peralta struck out Carlson to strand him.
Travis Shaw hit a one-double in the fourth inning, but Kim retired the next two batters to leave him there.
The Brewers finally broke the scoreless tie in the sixth inning.
Lorenzo Cain hit a leadoff double and Shaw hit a ground-rule RBI double to put Milwaukee up 1-0. Ryan Helsley relieved Kim and quelled the uprising.
The Cardinals tied the game 1-1 in the eighth. Harrison Bader hit a leadoff single off Brewers reliever Devin Williams and pinch-hitter Matt Carpenter walked.
Both runners moved up on Edman's flyout and Carlson's sacrifice fly tied the game 1-1.
The game went into extra-inning rules. The Cardinals stranded runners at first and third in the top of the 10th and the Brewers left runners at second and third.
Then Cardinals broke loose for five runs in the top of the 11th inning. Reyes walked two batters in the bottom of the inning stranded the bases loaded.