(Photo credit: Kyle Ross-Imagn Images)

Kyle Schwarber became the 21st player in major league history to hit four home runs in a game, highlighting the Philadelphia Phillies' 19-4 rout of the visiting Atlanta Braves on Thursday.

Schwarber belted a solo homer in the first inning, a two-run shot in the fourth, a three-run blast in the fifth and a mammoth three-run shot in the seventh. He had a chance for a fifth home run when he came to the plate in the eighth against infielder Vidal Brujan, but he flied out to left on a 57 mph pitch.

J.T. Realmuto, Max Kepler and Bryce Harper also went deep as the Phillies tied their franchise record with seven homers. Schwarber, who finished with a club-record nine RBIs, leads the National League with 49 home runs and 119 RBIs.

Michael Harris II knocked in two runs and Matt Olson homered for Atlanta. Cal Quantrill (4-12) allowed nine runs and nine hits -- including four homers -- in 3 1/3 innings. He had no walks and no strikeouts.

Giants 4, Cubs 3

Jung Hoo Lee capped a string of three straight one-out hits in the bottom of the ninth inning with a walk-off single, allowing San Francisco to complete a three-game sweep of visiting Chicago.

The game had been tied at 3-3 since the sixth before Casey Schmitt blooped a single to center field off Chicago's third pitcher, Daniel Palencia (1-4), to ignite the game-winning uprising. Wilmer Flores followed with a liner to left-center, sending Schmitt to second. Schmitt easily slid home safely on Lee's liner to right field.

Ryan Walker (5-4), who faced just one batter and retired him in the top of the ninth, was credited with the win in a game that featured four home runs, including two by the Giants' Willy Adames.

Astros 4, Rockies 3

Christian Walker's second home run of the game broke a tie in the eighth inning and gave host Houston a win over Colorado in the deciding game of a three-game series.

Jose Altuve also homered for the Astros while Ezequiel Tovar and Yanquiel Fernandez homered for the Rockies, who lost for the sixth time in seven games. Walker, leading off the bottom of the eighth, drove reliever Luis Peralta's first pitch far over the wall in left center an estimated 404 feet. It was Walker's 21st home run.

Bryan King (4-3) got the win in relief and Bryan Abreu worked the ninth for his fourth save. Peralta (1-2) took the loss. Houston starter Jason Alexander allowed three runs on seven hits in 5 2/3 innings.

Red Sox 3, Orioles 2

Trevor Story and Rob Refsnyder homered, and Romy Gonzalez's tiebreaking single in the eighth inning lifted Boston to a victory over Baltimore to complete a four-game series sweep.

Roman Anthony had two hits for the Red Sox, who went 7-1 on an eight-game road trip vs. American League East Division rivals. Refsnyder, who rejoined the roster from the IL earlier in the day, homered for the first time in more than a month and ended up with two hits.

Alex Jackson homered for the Orioles, who stranded nine runners on base and finished a 1-7 homestand. Jackson Holliday, Emmanuel Rivera and Jeremiah Jackson all had two hits.

Diamondbacks 6, Brewers 4

Tyler Locklear, Alek Thomas and Ildemaro Vargas each drove in a pair of runs to propel Arizona to a victory over Milwaukee.

All six RBIs came from the bottom-third of the lineup. Nabil Crismatt (2-0) threw 5 2/3 innings for Arizona, allowing four runs (two earned) on eight hits. In his major league debut, Taylor Rashi earned a three-inning save, allowing two hits.

Jose Quintana (10-5) lasted just 3 2/3 innings for Milwaukee, allowing six runs on five hits. Isaac Collins drove in two runs for the Brewers, who have gone 5-8 since winning 14 straight games.

Cardinals 4, Pirates 1

Jordan Walker hit a two-run home run to power St. Louis past visiting Pittsburgh to earn a split of their four-game series.

Cardinals starter Miles Mikolas allowed one run on four hits in five innings. Reliever Kyle Leahy (4-1) worked two scoreless innings to earn the victory.

Tommy Pham hit a homer for the Pirates, who suffered just their second loss in eight games. Pirates starter Braxton Ashcraft allowed one run on four hits in 5 2/3 innings. Losing pitcher Yohan Ramirez (1-2) allowed three runs while retiring only two batters.

--Field Level Media