<P> The 2001 World Series was the 97th edition of Major League Baseball 's championship series , a best - of - seven playoff between the National League ( NL ) champion Arizona Diamondbacks and the three - time defending World Series champions and American League ( AL ) champion New York Yankees . The Diamondbacks defeated the Yankees four games to three to win the best - of - seven series . Considered one of the greatest World Series of all time , memorable aspects included two extra-inning games and three late - inning comebacks . It ended on a Game 7 walk - off hit in the form of a bases - loaded blooper single off the bat of Luis Gonzalez . This was the third World Series to end in this way , following 1997 and 1991 . This was also the Yankees ' fourth consecutive World Series appearance , after winning it in 1998 , 1999 , and 2000 . </P>
<P> The 2001 World Series was the 97th edition of Major League Baseball 's championship series , a best - of - seven playoff between the National League ( NL ) champion Arizona Diamondbacks and the three - time defending World Series champions and American League ( AL ) champion New York Yankees . The Diamondbacks defeated the Yankees four games to three to win the best - of - seven series . Considered one of the greatest World Series of all time , memorable aspects included two extra-inning games and three late - inning comebacks . It ended on a Game 7 walk - off hit in the form of a bases - loaded blooper single off the bat of Luis Gonzalez . This was the third World Series to end in this way , following 1997 and 1991 . This was also the Yankees ' fourth consecutive World Series appearance , after winning it in 1998 , 1999 , and 2000 . </P>
who did the diamondbacks beat in the world series
who did the diamondbacks beat in the world series
New York Yankees
New York Yankees