The San Diego Padres took until the fourth innings of their fourth game of the MLB season to register their first home run, but once they did, their bats unleashed.
The Padres scored six runs in their fourth innings to go from 2-0 down to 6-2 up against the Colorado Rockies, and they posted another seven before the game was out to take their first win of the season.
Rockies shortstop Trevor Story claimed his own record on the day, becoming just the fifth player in MLB history to homer in four straight games to start a season.
The Minnesota Twins remain winless after their 4-3 loss against the Kansas City Royals, while the Baltimore Orioles remain perfect after their 6-1 win over the Tampa Bay Rays.
The Pittsburgh Pirates are the only other team to go 4-0, courtesy of a four-run eighth inning to seal a 6-5 win over the Cincinnati Reds.
Starling Marte hit his first career grand slam to seal the victory, adding to Brandon Phillips' solo homer in the second inning.
There were two grand slams in Toronto, one for the Blue Jays through Josh Donaldson as they went down 8-7 to the Boston Red Sox, whose grand slam came through Brock Holt.
Elsewhere, the Detroit Tigers shut out the New York Yankees 4-0, the Arizona Diamondbacks beat the Chicago Cubs 3-2, the Milwaukee Brewers defeated the Houston Astros 6-4, and the Arizona Cardinals beat the St. Louis Braves 7-4.
The New York Mets outclassed the Philadelphia Phillies 7-2, the Cleveland Indians beat the Chicago White Sox 7-1, the Texas Rangers defeated the Los Angeles Angels 7-3, and the San Francisco Giants needed an extra innings to beat the Los Angeles Dodgers 3-2.
Story makes history, Zimmerman halts Yankees
Story became the only player in MLB history to hit six home runs in his first four MLB games, and tied another record by homering in his fourth game to start a season.
hiSTORY! 4 games, 6 home runs.@Tstory2 is having a truly epic start to his career. #StoryTimehttps://t.co/oWBH0dAS0x-- Colorado Rockies (@Rockies) April 9, 2016
Jordan Zimmermann made an instant impact for the Tigers, allowing just two hits in Detroit's eighth straight home opener win.
Donaldson smacks grand slam
Blue Jays' Donaldson crushed Joe Kelly's fourth-inning pitch to the left to give the Blue Jays a 7-2 lead. Howver, the Red Sox came back for an impressive 8-7 win.
Making it rain! https://t.co/tSpMBV5ylx #OurMoment pic.twitter.com/2P8B9OPgEV-- Toronto Blue Jays (@BlueJays) April 9, 2016
Story makes waves
Story's six home runs in his first four Major League games dominated the agenda for the record keepers, ensuring he joined Willie Mays (1971), Mark McGwire (1998), Nelson Cruz (2011) and Chris Davis (2013) in achieving the feat.
Reds look to bounce back
The Reds are off to a surprisingly good start and hope to rebound from Friday's 6-5 loss to the Pirates. Gerrit Cole, who is 0-4 all-time against the Reds, will start for the Pirates. The Reds will counter with second-year player Raisel Iglesias, who got a no-decision in his first start this season.