Bernie Williams
As of 2009, Bernie Williams holds the record for most home runs hit in a single postseason by a New York Yankee with 6, in 1996.
The Yankees regular season record for 2006 was 97-65. The Yankees went 1-3 in the postseason.
The 2010 Yankees regular season record was 95-67. They also went 5-4 in the postseason.
Derek Jeter (aka Mr. November) holds the record for most postseason appearances. He's played in 158 postseason games with a .309 career postseason batting average. The New York Yankees have made it to the postseason every year since Jeter joined the team, with the exceptions of 2008 and 2013.
As of the end of the 2011 season, Derek Jeter holds the Yankees singles record with 2,291.
In 1998, the Yankees regular season record was 114-48. They finished the postseason with a record of 11-2.
Mariano Rivera of the New York Yankees with 34 2/3 scoreless playoff innings between 1998-2000.
Pettitte, who won two games in the 2009 World Series for the New York Yankees, has a 5-4 career record in the Fall Classic. He holds the record for most postseason victories with 18.
The Yankees regular season record in 2004 was 101-61. The Yankees also won 6 postseason games in 2004.
Through 2010, Derek Jeter holds the Major League record for most games played in the postseason with 147. Mickey Mantle played in 65, which were all World Series games.
New York Yankees