Boston Red Caps take the belt

Boston Red Caps beat Louisville Grays 6–1 at home to start reign 44 of the MLB belt, the 6th for the franchise.

Louisville Grays had held it since August 11, 1877, with 1 defense over 6 days.

Boston Red Caps held it for 22 days and 11 defenses, then lost it to Chicago Cubs on September 8, 1877.