Did you know that Mark McGwire, who is ranked number two (#2) and number three (#3) on this page, is also ranked number one (#1), number twenty-three (#23) and number thirty (#30) on the American League single season leaders for home run percentage?
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The American League single season record for home run percentage was set in 1996 by Mark McGwire of the Oakland Athletics. The National League single season record for home run percentage is on this page. Is either the Career Leader for Home Run Percentage?