The regular season concluded with seven teams entering the postseason who had failed to reach the 2006 playoffs including all National League teams, with only the New York Yankees returning; a dramatic one-game playoff between the Colorado Rockies and San Diego Padres; and the largest September collapse for a leading team in baseball history, with the Mets squandering a 7-game lead with 17 to play, losing on the final day of the regular season, and the Philadelphia Phillies capturing the National League East for the first time since 1993. The season ended on October 28, with the Boston Red Sox sweeping the World Series over the Rockies, four games to none.
A special exhibition game known as the "Civil Rights Game" was played on March 31 in AutoZone Park in Memphis, Tennessee, between the Cardinals and the Cleveland Indians to celebrate the history of civil rights in the United States. The 2007 season commemorates the 60th anniversary of Jackie Robinson's entry into the game, breaking the color barrier.
For the fourth consecutive season, MLB regular season attendance increased by comparison with the previous year. In 2007, an all-time attendance record of 79,502,524 (32,785 per game) was set.