Boston Red Sox Defeat New York Yankees in 2004 ALCS

Red Sox Win Series 4-3, Advance to World Series

David Ortiz's Walk-Off Homerun Secures Victory

The Boston Red Sox have defeated the New York Yankees in the 2004 American League Championship Series (ALCS), winning the series 4-3. The Red Sox clinched the series victory with a dramatic walk-off home run by David Ortiz in the bottom of the 14th inning of Game 7.

The Red Sox and Yankees entered the ALCS as the top two teams in the American League. The Red Sox had won 98 games during the regular season, while the Yankees had won 101. The two teams split the first two games of the series in Boston, before the Yankees won the first two games in New York.

The Red Sox rallied to win Game 5 in Boston, and then won Game 6 in New York to force a Game 7. In Game 7, the two teams were tied 4-4 after nine innings. The game went into extra innings, and the Red Sox finally won it in the bottom of the 14th inning on Ortiz's home run.

Ortiz's home run was a dramatic moment in Red Sox history. It was the first time that the Red Sox had won a playoff series against the Yankees since 1999. It was also the first time that the Red Sox had won a walk-off home run to win a playoff series.

The Red Sox' victory is a major upset. The Yankees were the defending World Series champions, and they had won 18 of their last 19 games against the Red Sox. But the Red Sox were able to overcome the odds and win the series. They are now one of the favorites to win the World Series.