The record for the longest measured home run in a major-league game is 634 ft., by Mickey Mantle for the New York Yankees against the Detroit Tigers at Briggs Stadium in Detroit, Michigan, in September 1960.
Source:
Guiness Book of Baseball World Recordshttp://www.Baseball-almanac.com/recbooks/rb_guin.shtmlBarry Bonds holds the record
Barry Bonds
Slugger Barry Bonds holds the record for the most home runs in a career. In the course of his career, he blasted 762 out of the park.
Barry Bonds holds the record for career home runs with 762 and the mark for most homers in a season with 73.
Ty Cobb
barry bonds
Barry Bonds
Michael Jordan
Ted Williams holds the record for most career home runs by a Boston Red Sox player with 521.
Mickey Mantle holds the record for career World Series home runs with 18.
Hank Aaron
Mark McGwire