The National League and the American Association faced each other in a World's Championship Series at the end of the season to determine an overall champion.
TEAMWLPctGB
y 1890 Brooklyn Bridegrooms LogoBrooklyn   8643.667-
1890 Chicago Colts LogoChi. Colts 8353.6106.5
1890 Philadelphia Phillies LogoPhil. Phillies 7853.5959.0
1890 Cincinnati Reds LogoCincinnati 7755.58310.5
1890 Boston Beaneaters LogoBoston 7657.57112.0
1890 New York Giants LogoNY Giants 6368.48124.0
1890 Cleveland Spiders LogoCleveland 4488.33343.5
1890 Pittsburg Alleghenys LogoPittsburg 23113.16966.5