That would be the most in a season in Yankees history. Roger Maris’ 61 in 1961 is also the American League record. Most HR in a season, Yankees history: 1961 Roger Maris: 611927 Babe Ruth: 601921 Babe Ruth: 59 WOULD BE MOST IN MLB SINCE It would be the third 67-plus homer season in MLB history. There have been eight with at least 60. Most HR in a season, MLB history: 2001 Barry Bonds: 731998 Mark McGwire: 701998 Sammy Sosa: 661999 Mark McGwire: 652001 Sammy Sosa: 641999 Sammy Sosa: 631961 Roger Maris: 611927 Babe Ruth: 60