CHICAGO — Kyle Schwarber hit two homers and drove in four runs, Jon Lester won his fourth straight decision and the Chicago Cubs beat the Milwaukee Brewers 9-2 Thursday for their seventh victory in a row.
Schwarber, Dexter Fowler and Anthony Rizzo each homered in the fifth inning as Chicago won for the 13th time in 14 games. The Cubs' winning streak is their longest since 2011.
The Cubs, holding the lead for the second NL wild-card spot, completed their first undefeated homestand of at least seven games since 2008. They began this stay at Wrigley Field by sweeping four from San Francisco, then took three from the Brewers.
Schwarber later connected in the seventh and has two multihomer performances in 31 games of his first season in the majors. Fellow rookie Kris Bryant extended his hitting streak to 10 games and Chris Denorfia later added the Cubs' fifth homer of the day.
Lester (8-8) struck out 10 in six innings. He gave up two runs and seven hits.
Lester didn't go at least seven innings for the first time since June 25 and his struggle with holding baserunners was exploited. He allowed five stolen bases — including four in the third.
The left-hander was charged with an error when his pickoff throw in the third sailed past Rizzo at first base, letting Jean Segura advance. Segura stole third with Lester holding the ball and scored on Ryan Braun infield's single.
Tied at 1 in the fifth, Chicago broke through against Tyler Cravy (0-4) and Corey Knebel.
With one out, Fowler was credited with a two-run homer after his drive to right was originally called a double after it bounced off the wall behind the overhanging basket. Schwarber then followed with his seventh homer.
Knebel replaced Cravy, and allowed Rizzo's 22nd home run of the season to give the Cubs three homers in an inning for the first time since Aug. 29, 2011, at San Francisco.
Braun had three hits.
Brewers: RHP Johnny Hellweg, a top pitching prospect, continues to progress as he returns from Tommy John surgery. Hellweg hit 98 mph in his last start Tuesday at Class A Brevard County.
Cubs: Manager Joe Maddon said RHP Pedro Strop likely wouldn't be available.
Brewers: RHP Wily Peralta (2-7, 4.48) faces Philadelphia LHP Adam Morgan (3-3, 4.06) on Friday in Philadelphia. Peralta is 1-2 with a 6.06 ERA since returning from the disabled list in late July.
Cubs: RHP Kyle Hendricks (6-5, 3.73) faces White Sox RHP Jeff Samardzija (8-7, 4.62) on Friday at U.S. Cellular Field. Samardzija spent parts of seven seasons with the Cubs before being traded to Oakland in July 2014.