The Athletics reached the playoffs in four consecutive years from 2000 through 2003, losing in the American League Division Series each year. In 2002, the Athletics became the first team in the 100+ years of American League baseball to win 20 consecutive games. They won their first playoff series under Beane in 2006 when they swept the Minnesota Twins in the American League Division Series, but were swept by the Detroit Tigers in the American League Championship Series.
After the 2002 season, the Boston Red Sox made Beane an offer of $12.5 million to become their GM, but he declined. On April 15, 2005, Beane received a contract extension to remain with the Athletics as its general manager through 2012, and new team owner Lewis Wolff awarded Beane a small portion of the team's ownership. In February 2012, the Athletics extended Beane's contract through 2019.