CHICAGO -

Bud Norris pitched six shutout innings, Jason Castro homered and the Houston Astros beat the Chicago Cubs 3-0 Tuesday night in a matchup of 100-loss teams.

The season-ending series between NL Central clubs marks the first meeting of 100-loss team in the majors since 1962, when the Cubs played the New York Mets.

Houston (55-106) threw its third straight shutout and won for the fifth time in six games. The Astros have already matched last year's franchise-worst loss total with one game left. 

Norris (7-13) scattered four hits and won back-to-back starts for the first time since May.

Chris Volstad (3-12) took the loss for the Cubs, who fell to 60-101.