The teams met on July 1, 1859 at 11am. Neither college had an official baseball team and the players were each selected by the student body. Amherst edged out Williams in the almost 4 hour game 73-32 in a rivalry that still takes place today and is considered the oldest collegiate baseball rivalry.
The game was played under the Massachusetts Rules which are quite different than today's game. Under these rules, you could hit the ball in any direction because there were no foul balls. Fielders could hit players with the ball to get them out and base runners did not have to stay in the base line. In latter years, teams adopted the Knickerbocker Rules which are more similar to modern baseball rules.
There is some debate on whether the game between Amherst and Williams should be considered the first collegiate baseball game due to the divergence of rules, but this has not dissuaded residents of Pittsfield from claiming the honor or placing this historical marker on North Street.