MLB players who have hit 30 or more home runs before the All-Star break

Listed below are the Major League Baseball players who have hit 30 or more home runs before the All-Star break (multiple occurrences denoted into parentheses).

Note: The MLB All-Star game did not start until 1933. Also, the All-Star game is not played at mid-season. It is generally played about 90 games into each season.

Year	Player	Team	HR
1954	Willie Mays	New York Giants NL	31
1961	Roger Maris	New York Yankees AL	33
1964	Harmon Killebrew	Minnesota Twins AL	30
1969	Reggie Jackson	Oakland Athletics AL	37
1969	Frank Howard	Washington Senators AL	34
1969	Willie McCovey	San Francisco Giants NL	30
1971	Willie Stargell	Pittsburgh Pirates NL	30
1973	Willie Stargell (2)	Pittsburgh Pirates NL	30
1976	Mike Schmidt	Philadelphia Phillies NL	31
1976	Dave Kingman	New York Mets NL	30
1987	Mark McGwire	Oakland Athletics AL	33
1989	Kevin Mitchell	San Francisco Giants NL	31
1994	Ken Griffey, Jr.	Seattle Mariners AL	33
1994	Matt Williams	San Francisco Giants NL	33
1994	Frank Thomas	Chicago White Sox AL	32
1996	Brady Anderson	Baltimore Orioles AL	30
1997	Mark McGwire (2)	Oakland Athletics AL	31
1997	Ken Griffey, Jr. (2)	Seattle Mariners AL	30
1998	Mark McGwire (3)	St. Louis Cardinals NL	37
1998	Ken Griffey Jr. (3)	Seattle Mariners AL	35
1998	Sammy Sosa	Chicago Cubs NL	33
1998	Greg Vaughn	San Diego Padres NL	30
1999	Sammy Sosa (2)	Chicago Cubs NL	32
1998	Jose Canseco	Tampa Bay Devil Rays AL	31
2000	Mark McGwire (4)	St. Louis Cardinals NL	30
2001	Barry Bonds	San Francisco Giants NL	39
2001	Luis Gonzalez	Arizona Diamondbacks NL	35
2003	Barry Bonds (2)	San Francisco Giants NL	30