High Quality Content by WIKIPEDIA articles! The 1989 Chicago Cubs season was the team`s 114th season and was highlighted when the team won its second National League Eastern Division championship. The Cubs had All-Star seasons from Ryne Sandberg, Andre Dawson, Rick Sutcliffe and Mitch Williams and Jerome Walton was the Rookie of the Year. Their season ended in Game 5 the National League Championship Series against the San Francisco Giants.