Reggie Jackson
Stan Musial had a career low of .255 batting average in the 1963 season.
Cal Ripken Jr. - 3,184 career base hits in a 21 season career (1981-2001) with a .276 lifetime batting average, the lowest of any current member of the 3,000 Hit Club.
Tony Armas of the Red Sox had the lowest batting average for an RBI leader. He had 107 RBIs and a .218 batting average.
For non pitchers, that is catcher Ray Schalk who played for the Chicago White Sox between 1912-1928 and the New York Giants in 1929 and had a career batting average of .253.
.000 Some pitchers only play in one Major League game for their entire life, and go ofer.
Through the 2008 season, of the players that hit 400 or more home runs in their career, the lowest batting average is .236 by Dave Kingman who played 16 seasons with the Giants, Mets, Padres, Angels, Yankees, Cubs, and Athletics. Kingman ended his career with 442 HRs.
Chicago Bulls
The dubious honor of the lowest batting average while still qualifying for the batting title belongs to Rob Deer. In 1991, playing for the Detroit Tigers, Deer batted .179 in 539 plate appearances.
Ron Herbel (1963-1971 for the Giants, Padres, Mets, and Braves) had career totals of 6 hits (4 singles and 2 doubles) in 206 at bats for a batting average of .029 ... he had 125 strikeouts in those 206 at bats.
In 1968, Carl Yastrzemski led the American League with a .301 average.
Harmon Killebrew at .256.
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