Through 2009, Derek Jeter has a .313 post season batting average.
How was Derek Jeters childhood and education
Derek Jeter's highest batting average was .349, it was the 1999 season.
In 2011, Derek Jeter finished the season with a .297batting average.
In 2012, Derek Jeter finished the season with a .316batting average.
In 2010, Derek Jeter finished the season with a .270 batting average, in 2011 he had a .297 average.
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JETER2
As far as the major leagues go, Derek Jeter's highest batting average was .349, it was the 1999 season.
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1996
At the end of the 2005 season, Jeter's career batting average was .314 (1936 base hits in 6167 at bats).
In 2010, Derek Jeter had a .270 batting average.