"Boston game"

While the game was being banned in colleges, it was growing in popularity in various New England prep schools. In 1855, manufactured inflatable balls were introduced. These were much more regular in shape than the handmade balls of earlier times, making kicking and carrying easier. Two general types of football had evolved by this time: "kicking" games and "running" (or "carrying") games. A hybrid of the two, known as the "Boston game", was played by a group known as the Oneida Football Club. The club, considered by some historians as the first formal football club in the United States, was formed in 1862 by schoolboys who played the "Boston game" on Boston Common. They played mostly between themselves, though they organized a team of non-members to play a game in November 1863, which the Oneidas won easily. The game caught the attention of the press, and the "Boston game" continued to spread throughout the 1860s. The game began to return to college campuses by the late 1860s. Yale, Princeton, Rutgers, and Brown all began playing "kicking" games during this time. In 1867, Princeton used rules based on those of the English Football Association.A "running game", resembling rugby, was taken up by the Montreal Football Club in Canada in 1868.

Intercollegiate football
On November 6, 1869, Rutgers University faced Princeton University in a game that is often regarded as the first game of intercollegiate football. The game was played at a Rutgers field under Rutgers rules. Two teams of 25 players attempted to score by kicking the ball into the opposing team's goal. Throwing or carrying the ball was not allowed. The first team to reach six goals was declared the winner. Rutgers crossed the line first and went on to win by a score of six to four. A rematch was played at Princeton a week later under Princeton rules (one notable difference was the awarding of a "free kick" to any player that caught the ball on the fly). Princeton won that game by a score of eight to zero. Columbia joined the series in 1870, and by 1872 several schools were fielding intercollegiate teams, including Yale and Stevens Institute of Technology.