1890 World Series

Although the Brotherhood only lasted the one season, it had a detrimental financial effect on the other two leagues, especially the Association.

Although the Boston Reds of the Players' League were probably the best team in the majors, and had floated the idea of a three-way World Series, the established leagues ignored them and made arrangements for the usual NL-AA contest, this time to be a conventional best-4-of-7 Series.

The first four were played in Louisville (including a tie in Game 3), and the remainder of the Series was scheduled for Brooklyn.

The Association ended its relationship with the League before the spring of 1891, so the anticipated championship game was canceled, and no World Series was held in 1891.

It would also turn out to be the second (and last) time that a club won pennants in consecutive years in different leagues.