The winner of the All-Star Game determines home field advantage for the World Series. For example, if the National League wins the first two games of the World Series will be played in the National League ballpark before playing the next three in the American League ballpark.
Yes, baseball needed some way to boost the All-Star Games ratings.
There is an MLB rule that states the League that wins the All-Star game has home field advantage in the World Series. Since the American League won the 2009 All-Star game, 4-3, they get home field advantage for the 2009 World Series.
Major League Baseball instituted a new policy this year, giving the home-field advantage in the World Series to the team from the league that won that year's All-Star Game. The American League won the 2004 All-Star Game, so the AL's World Series representative--Boston--gets the home-field advantage.
Yes ... that began in 2003.
The winner of the all-star game determines home field advantage. If the NL wins they get it and vice versa.
Nothing but the winning team gets home field advantage for the world series.
Home field advantage. Dating back to 1985, the team that has opened the World Series at home (hosting a possible four of seven games) has been victorious in 24 of the last 31 World Series.
As far as the major league divisional and league championship series are concerned, home field is determined by the won-loss record a team has for the regular season. However, a wildcard team is always seeded forth regardless of it's record. For the World Series, home field advantage is determined by which league won the All Star Game. If the National League won the All Star Game the National League team will have home field advantage in the World Series. If the American Leaegue won the All Star Game the American League team will have home field advantage in the World Series.
Best of 7 games wins the series. The league that wins the All star game gets home field advantage. Games 1, 2, 6, and 7 (if needed ) are played at the park of the team with home field advantage. Games 3, 4, and 5 (if needed) are played in the other teams park.
Because the leagues alternated World Series sites at that time. The year before, in the seven-game 1987 World Series, the first two games and the last two games were played in Minnesota. In 1989, the year after the Dodgers' championship title, the Series opened in Oakland. The leagues continued to alternate sites until 2003, when the lords of baseball agreed to award home field advantage to the league that wins the All-Star Game. Because the National League won the 2010 All-Star Game, the World Series opened in San Francisco.
2001
The league that wins the All-Star gets to host four games of the World Series. Thus, in 2011 the Cardinals have home field advantage even though they were the last NL team to make the playoffs.