Starlin Castro, Rizzo and Baez, the nucleus of Theo Epstein’s rebuilding effort, drove in all four runs against the NL-leading Brewers. Castro and Chris Coghlan contributed three hits each.
Cubs starter Tsuyoshi Wada was coasting until he was chased in the seventh, when he allowed consecutive home runs to Rickie Weeks and Martin Maldonado. Wada allowed two runs on five hits in 6 2-3 innings. He struck out five and walked one.
Hector Rondon pitched a scoreless ninth for his 16th save in 20 tries.
Lohse allowed four runs on seven hits in three innings, and tweaked his right ankle during at at-bat.