1866 NABBP Season
21 teams competed during the regular season
Brooklyn Atlantic finished in 1st place to claim the championship
League Note
By 1866, the association had dozens of teams. Several subpar and short-lived teams are omitted here. Standings were determined by number of total wins, rather than winning percentage. Historical records of game results and player statistics may be missing or incomplete.
I sincerely appreciate the research work, and the information being shared. It is important and interesting history.