Two in the fourth, one in the fifth, one more each in the sixth and seventh and then Kyle Schwarber, with two out in the ninth, drove a grand slam halfway up the bleachers in right field.
And for the first time in nearly 145 years of major-league history, all three outfielders for a team in the same game hit at least two homers each.
"This game's been going on for a while, so it's pretty rare to have a first," said Happ, the center fielder, who hit a two-run shot in the fifth and a leadoff homer in the seventh. "And to be able to do that as a group with two other guys you care about a lot, that you've played with for a long time, that was really special for all of us."
Happ, who played at the University of Cincinnati improved his career numbers at Great American Ball Park to .333 with 10 homers and a 1.262 OPS in 25 games there.
Schwarber, who grew up less than 40 miles away in Middletown, Ohio, how has 11 homers, an .828 OPS and more RBI (25) at GABP than any ballpark except Wrigley Field.
"There's a lot of cool irony in that," said Heyward, who's on an 18-game hot streak the last three weeks (.361 with 14 walks, 10 extra-base hits and a 1.253 OPS).
"It's a special moment for us," Heyward said. "To be a part of history, that's awesome."
Cubs outfielders pull off 'really special' 145-year first in MLB originally appeared on NBC Sports Chicago