11th The New York State Base Ball Convention at Albany expels the Mutual Club from the Association for reinstating Duffy, a player found guilty of throwing a game in 1865. Their championship is not at stake for the association does not recognize any team as official champions. Because their motives in reinstating Duffy were honorable, the penalty is waived.
26th The first enclosed Baseball grounds in San Francisco is opened, called Recreation Grounds, at the corner of 25thand Folsom streets. The first game sees the Eagle Club defeat the Wide Awakes, 37-23.