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.
Champ
SLB
1886 NL Champion St. Louis Browns
z: best record, c: conference winner, y: division winner, w: wildcard, x: clinched playoff spot

World's Championship Series

Best of 7-game series
Home/Away matchups are not known
Date    OpponentResultScoreSeries
10/18vs StL BrownsW  6-0 1-0
10/19at StL BrownsL  0-12
8
1-1
10/20at StL BrownsW  11-4
8
2-1
10/21at StL BrownsL  5-8
7
2-2
10/22at StL BrownsL  3-10
7
2-3
10/23at StL BrownsL  3-4
10
2-4