Shota Imanaga threw seven scoreless innings, Michael Busch and Kyle Tucker slugged back-to-back home runs in the first, and the Chicago Cubs blanked the visiting Boston Red Sox 6-0 on Saturday.

Imanaga (7-3) allowed just five hits, while striking out five and walking one, helping the Cubs take the weekend series and win their fourth straight game. Matt Shaw, Pete Crow-Armstrong and Ian Happ each added solo homers for Chicago, which now holds MLB's best record (59-39).

Boston starter Brayan Bello (6-4) allowed three runs on six hits in the loss, striking out four and walking one. Masataka Yoshida and Abraham Toro each tallied a pair of hits for Boston, which dropped its second straight game after posting a 10-game winning streak to end the first half.