Roger Maris (61)
Mark McGwire broke Roger Maris' single season home run record of 61 in 1998. McGwire would finish the year with 70 home runs setting the new single season home run record. In 2001 Barry Bonds broke this record by hitting 73 home runs.
Roger Maris
7 Gold Medals in a single Olympics. he was a swimmer.
As of June 2014 Barry Bonds holds the record for most regular season homeruns. The record is 73 which beat Mark McGwire's record.
Beat Records ended in 1980.
Beat Records was created in 1978.
Back Beat Records ended in 1976.
F-Beat Records ended in 1986.
F-Beat Records was created in 1979.
Blue Beat Records was created in 1989.
Blue Beat Records ended in 1990.