Kyle Schwarber

CINCINNATI (AP) — With one massive drive in the ninth inning, Kyle Schwarber made history for the Chicago Cubs.

Schwarber, Jason Heyward and Ian Happ became the first starting outfield to hit multiple homers in the same game, and the Cubs pounded the Cincinnati Reds 10-1 on Sunday for a split of their four-game series.

Schwarber hit the first and the last of the Cubs’ season-high six homers, belting a solo drive in the fourth against Luis Castillo (0-5) and a grand slam off Jose De Leon in the ninth. Heyward connected for solo drives in the fourth and sixth, and Happ hit a two-run shot in the fifth and a solo homer in the seventh.

“I guess we made some history today,” Schwarber said. “When you have a little piece of history, you always keep that with you.”

The NL Central-leading Cubs hit 14 homers in the series.

“All in all, we had good offense throughout the lineup,” Ross said. “Guys battled and got their pitches.”

Joey Votto homered in the sixth for Cincinnati, which rallied for a doubleheader split against Chicago on Saturday. Castillo allowed four runs and five hits in five innings.

Cubs right-hander Tyler Chatwood left in the third inning with right elbow discomfort. Colin Rea, Jose Quintana (1-0), Ryan Tepera, Kyle Ryan and Duane Underwood Jr. then combined for 6 2/3 innings of two-hit ball.

Chatwood was making his second start since returning from the IL on Aug. 25. He had been sidelined with a lower back strain.

Castillo, a National League All-Star last season while going 14-8, had allowed one homer all season before surrendering three against the Cubs. He struck out seven and walked one.

Chicago’s Jon Lester (2-1), Tuesday’s starter in Pittsburgh, allowed one run in six innings in his last start against the Pirates, a 2-1, 11-inning Cubs win on Aug. 2.