Chicago pulled within a win of clinching a playoff berth with a 4-1 victory over Pittsburgh. Michael Busch punctuated the night with a leadoff homer and went 3-for-4, while Cade Horton steadied after a rough first inning to lock down the win as Chicago trimmed its magic number to one. Paul Skenes, entering with a 2.03 ERA, exited after 3 2/3 innings as the Cubs pushed across three runs in the opening frame and added insurance later. The series finale looms with division and home-field implications still alive for the Cubs.