The Arizona Diamondbacks and the Colorado Rockies are two Major League Baseball teams that compete in the National League West division. Their rivalry is a relatively young one, emerging since both teams were expansion franchises in the 1990s. Games between the D-backs and Rockies often feature high scores due to the hitter-friendly environment of Coors Field in Denver, creating exciting matchups for fans. While neither team has dominated the series historically, their divisional clashes are always important in the NL West standings and playoff races.