May 12, 1877 at Chicago
Chicago 9, Boston 18
GameID g05121877-07

| Chicago
| Ross Barnes | 2b | | Cap Anson | 3b | | Cal McVey | c | | Al Spalding | 1b | | John Peters | ss | | Paul Hines | rf | | George Bradley | p | | John Glenn | lf | | Harry Smith | cf | | | Boston
| George Wright | 2b | | Andy Leonard | ss | | Deacon White | 1b | | Jim O'Rourke | lf | | Ezra Sutton | 3b | | Lew Brown | c | | John Morrill | rf | | Tim Murnane | cf | | Tommy Bond | p | |