50 home run club
Encyclopedia
In Major League Baseball
Major League Baseball
Major League Baseball is the highest level of professional baseball in the United States and Canada, consisting of teams that play in the National League and the American League...

, the 50 home run club is an informal term applied to the group of players who have hit 50 or more home run
Home run
In baseball, a home run is scored when the ball is hit in such a way that the batter is able to reach home safely in one play without any errors being committed by the defensive team in the process...

s in a single season. The 50 Home Run Club was "founded" by Babe Ruth
Babe Ruth
George Herman Ruth, Jr. , best known as "Babe" Ruth and nicknamed "the Bambino" and "the Sultan of Swat", was an American Major League baseball player from 1914–1935...

 in 1920
1920 in sports
-American football:NFL championship* 17 September — the National Football League is founded as the American Professional Football Association at Canton, Ohio; it is a coalition of teams primarily from the Ohio League, New York Pro Football League, the Chicago football circuit, and other teams in...

. At the time, he became the first player to hit not only 50 home runs in a season, but 40 and 30 as well, breaking his own single season record of 29 from the season.

Mentioned less frequently are the 60 Home Run Club and the 70 Home Run Club, which have five and two members respectively. These "clubs" have become more populated since the 1998
1998 in sports
1998 in sports describes the year's events in world sport.-Alpine skiing:* Alpine Skiing World Cup** Men's overall season champion: Hermann Maier, Austria** Women's overall season champion: Katja Seizinger, Germany-American football:...

 season, which saw membership in the 60 Home Run Club double. That year, Mark McGwire
Mark McGwire
Mark David McGwire , nicknamed "Big Mac", is an American former professional baseball player who played his major league career with the Oakland Athletics and the St. Louis Cardinals. He is currently the hitting coach for the St...

 became the founding member of the 70 Home Run Club when he set a new single-season record. He has since been surpassed by Barry Bonds
Barry Bonds
Barry Lamar Bonds is an American former Major League Baseball outfielder. Bonds played from 1986 to 2007, for the Pittsburgh Pirates and San Francisco Giants. He is the son of former major league All-Star Bobby Bonds...

, the only other current member of the 70 Home Run Club.

List

As of the 2010 season
2010 Major League Baseball season
The 2010 Major League Baseball season began Sunday, April 4, when the Boston Red Sox defeated their long-time rivals, the 2009 World Series champion New York Yankees at Fenway Park, 9–7; the regular season ended on October 3. The 2010 All-Star Game was played on July 13 at Angel Stadium of Anaheim...

, 26 players have hit 50-or-more home runs in a single season, a total of 42 times.

Player HR Team Season Pos Career HoF
National Baseball Hall of Fame and Museum
The National Baseball Hall of Fame and Museum is an American history museum and hall of fame, located at 25 Main Street in Cooperstown, New York, operated by private interests serving as the central point for the study of the history of baseball in the United States and beyond, the display of...

54 New York Yankees
New York Yankees
The New York Yankees are a professional baseball team based in the The Bronx, New York. They compete in Major League Baseball in the American League's East Division...

^ OF
Outfielder
Outfielder is a generic term applied to each of the people playing in the three defensive positions in baseball farthest from the batter. These defenders are the left fielder, the center fielder, and the right fielder...

714 1936
Baseball Hall of Fame balloting, 1936
The first elections to select inductees to the Baseball Hall of Fame were held in 1936. Members of the Baseball Writers Association of America were given authority to select individuals from the 20th century; while a special Veterans Committee, made up of individuals with greater familiarity with...

59 New York Yankees
New York Yankees
The New York Yankees are a professional baseball team based in the The Bronx, New York. They compete in Major League Baseball in the American League's East Division...

^ OF
Outfielder
Outfielder is a generic term applied to each of the people playing in the three defensive positions in baseball farthest from the batter. These defenders are the left fielder, the center fielder, and the right fielder...

714 1936
60 New York Yankees
New York Yankees
The New York Yankees are a professional baseball team based in the The Bronx, New York. They compete in Major League Baseball in the American League's East Division...

^ OF
Outfielder
Outfielder is a generic term applied to each of the people playing in the three defensive positions in baseball farthest from the batter. These defenders are the left fielder, the center fielder, and the right fielder...

714 1936
54 New York Yankees
New York Yankees
The New York Yankees are a professional baseball team based in the The Bronx, New York. They compete in Major League Baseball in the American League's East Division...

OF
Outfielder
Outfielder is a generic term applied to each of the people playing in the three defensive positions in baseball farthest from the batter. These defenders are the left fielder, the center fielder, and the right fielder...

714 1936
56 Chicago Cubs
Chicago Cubs
The Chicago Cubs are a professional baseball team located in Chicago, Illinois. They are members of the Central Division of Major League Baseball's National League. They are one of two Major League clubs based in Chicago . The Cubs are also one of the two remaining charter members of the National...

OF
Outfielder
Outfielder is a generic term applied to each of the people playing in the three defensive positions in baseball farthest from the batter. These defenders are the left fielder, the center fielder, and the right fielder...

244 1979
Baseball Hall of Fame balloting, 1979
Elections to the Baseball Hall of Fame for 1979 followed the system in place since 1978.The Baseball Writers Association of America voted by mail to select from recent major league players andelected Willie Mays....

58‡ Philadelphia Athletics
Oakland Athletics
The Oakland Athletics are a Major League Baseball team based in Oakland, California. The Athletics are a member of the Western Division of Major League Baseball's American League. From to the present, the Athletics have played in the O.co Coliseum....

1B
First baseman
First base, or 1B, is the first of four stations on a baseball diamond which must be touched in succession by a baserunner in order to score a run for that player's team...

/3B
Third baseman
A third baseman, abbreviated 3B, is the player in baseball whose responsibility is to defend the area nearest to third base — the third of four bases a baserunner must touch in succession to score a run...

534 1951
Baseball Hall of Fame balloting, 1951
Elections to the Baseball Hall of Fame for 1951 followed the same rules as 1950.The Baseball Writers Association of America voted once by mail to select from major league players retired less than 25 years...

50 Boston Red Sox
Boston Red Sox
The Boston Red Sox are a professional baseball team based in Boston, Massachusetts, and a member of Major League Baseball’s American League Eastern Division. Founded in as one of the American League's eight charter franchises, the Red Sox's home ballpark has been Fenway Park since . The "Red Sox"...

1B
First baseman
First base, or 1B, is the first of four stations on a baseball diamond which must be touched in succession by a baserunner in order to score a run for that player's team...

534 1951
58‡ Detroit Tigers
Detroit Tigers
The Detroit Tigers are a Major League Baseball team located in Detroit, Michigan. One of the American League's eight charter franchises, the club was founded in Detroit in as part of the Western League. The Tigers have won four World Series championships and have won the American League pennant...

1938 1B
First baseman
First base, or 1B, is the first of four stations on a baseball diamond which must be touched in succession by a baserunner in order to score a run for that player's team...

331 1956
51 New York Giants
San Francisco Giants
The San Francisco Giants are a Major League Baseball team based in San Francisco, California, playing in the National League West Division....

1B
First baseman
First base, or 1B, is the first of four stations on a baseball diamond which must be touched in succession by a baserunner in order to score a run for that player's team...

359 1981
Baseball Hall of Fame balloting, 1981
Elections to the Baseball Hall of Fame for 1981 followed the system in place since 1978.The Baseball Writers Association of America voted by mail to select from recent major league players andelected Bob Gibson....

51 Pittsburgh Pirates 1947 OF 369 1975
Baseball Hall of Fame balloting, 1975
Elections to the Baseball Hall of Fame for 1975 followed the system in place since 1971.The Baseball Writers Association of America voted by mail to select from recent major league players andelected Ralph Kiner....

54‡ Pittsburgh Pirates
Pittsburgh Pirates
The Pittsburgh Pirates are a Major League Baseball club based in Pittsburgh, Pennsylvania. They play in the Central Division of the National League, and are five-time World Series Champions...

OF
Outfielder
Outfielder is a generic term applied to each of the people playing in the three defensive positions in baseball farthest from the batter. These defenders are the left fielder, the center fielder, and the right fielder...

369 1975
51 New York Giants
San Francisco Giants
The San Francisco Giants are a Major League Baseball team based in San Francisco, California, playing in the National League West Division....

OF
Outfielder
Outfielder is a generic term applied to each of the people playing in the three defensive positions in baseball farthest from the batter. These defenders are the left fielder, the center fielder, and the right fielder...

660 1979
Baseball Hall of Fame balloting, 1979
Elections to the Baseball Hall of Fame for 1979 followed the system in place since 1978.The Baseball Writers Association of America voted by mail to select from recent major league players andelected Willie Mays....

52 New York Yankees
New York Yankees
The New York Yankees are a professional baseball team based in the The Bronx, New York. They compete in Major League Baseball in the American League's East Division...

CF
Center fielder
A center fielder, abbreviated CF, is the outfielder in baseball who plays defense in center field – the baseball fielding position between left field and right field...

536 1974
Baseball Hall of Fame balloting, 1974
Elections to the Baseball Hall of Fame for 1974 followed the system in place since 1971.The Baseball Writers Association of America voted by mail to select from recent major league players andelected two, Whitey Ford and Mickey Mantle....

54 New York Yankees
New York Yankees
The New York Yankees are a professional baseball team based in the The Bronx, New York. They compete in Major League Baseball in the American League's East Division...

CF
Center fielder
A center fielder, abbreviated CF, is the outfielder in baseball who plays defense in center field – the baseball fielding position between left field and right field...

536 1974
61‡ New York Yankees
New York Yankees
The New York Yankees are a professional baseball team based in the The Bronx, New York. They compete in Major League Baseball in the American League's East Division...

1961^ OF
Outfielder
Outfielder is a generic term applied to each of the people playing in the three defensive positions in baseball farthest from the batter. These defenders are the left fielder, the center fielder, and the right fielder...

275
52 San Francisco Giants
San Francisco Giants
The San Francisco Giants are a Major League Baseball team based in San Francisco, California, playing in the National League West Division....

OF
Outfielder
Outfielder is a generic term applied to each of the people playing in the three defensive positions in baseball farthest from the batter. These defenders are the left fielder, the center fielder, and the right fielder...

660 1979
52‡ Cincinnati Reds
Cincinnati Reds
The Cincinnati Reds are a Major League Baseball team based in Cincinnati, Ohio. They are members of the National League Central Division. The club was established in 1882 as a charter member of the American Association and joined the National League in 1890....

OF
Outfielder
Outfielder is a generic term applied to each of the people playing in the three defensive positions in baseball farthest from the batter. These defenders are the left fielder, the center fielder, and the right fielder...

348
51 Detroit Tigers
Detroit Tigers
The Detroit Tigers are a Major League Baseball team located in Detroit, Michigan. One of the American League's eight charter franchises, the club was founded in Detroit in as part of the Western League. The Tigers have won four World Series championships and have won the American League pennant...

1B
First baseman
First base, or 1B, is the first of four stations on a baseball diamond which must be touched in succession by a baserunner in order to score a run for that player's team...

319
50 Cleveland Indians
Cleveland Indians
The Cleveland Indians are a professional baseball team based in Cleveland, Ohio. They are in the Central Division of Major League Baseball's American League. Since , they have played in Progressive Field. The team's spring training facility is in Goodyear, Arizona...

LF
Left fielder
In baseball, a left fielder is an outfielder who plays defense in left field. Left field is the area of the outfield to the left of a person standing at home plate and facing towards the pitcher's mound...

381
50‡ Baltimore Orioles
Baltimore Orioles
The Baltimore Orioles are a professional baseball team based in Baltimore, Maryland in the United States. They are a member of the Eastern Division of Major League Baseball's American League. One of the American League's eight charter franchises in 1901, it spent its first year as a major league...

CF
Center fielder
A center fielder, abbreviated CF, is the outfielder in baseball who plays defense in center field – the baseball fielding position between left field and right field...

210
52 Oakland Athletics
Oakland Athletics
The Oakland Athletics are a Major League Baseball team based in Oakland, California. The Athletics are a member of the Western Division of Major League Baseball's American League. From to the present, the Athletics have played in the O.co Coliseum....

1996 1B
First baseman
First base, or 1B, is the first of four stations on a baseball diamond which must be touched in succession by a baserunner in order to score a run for that player's team...

/DH
Designated hitter
In baseball, the designated hitter rule is the common name for Major League Baseball Rule 6.10, an official position adopted by the American League in 1973 that allows teams to designate a player, known as the designated hitter , to bat in place of the pitcher each time he would otherwise come to...

583
56‡ Seattle Mariners
Seattle Mariners
The Seattle Mariners are a professional baseball team based in Seattle, Washington. Enfranchised in , the Mariners are a member of the Western Division of Major League Baseball's American League. Safeco Field has been the Mariners' home ballpark since July...

OF
Outfielder
Outfielder is a generic term applied to each of the people playing in the three defensive positions in baseball farthest from the batter. These defenders are the left fielder, the center fielder, and the right fielder...

630
58 Oakland Athletics
Oakland Athletics
The Oakland Athletics are a Major League Baseball team based in Oakland, California. The Athletics are a member of the Western Division of Major League Baseball's American League. From to the present, the Athletics have played in the O.co Coliseum....

/St. Louis Cardinals
St. Louis Cardinals
The St. Louis Cardinals are a professional baseball team based in St. Louis, Missouri. They are members of the Central Division in the National League of Major League Baseball. The Cardinals have won eleven World Series championships, the most of any National League team, and second overall only to...

1997 1B
First baseman
First base, or 1B, is the first of four stations on a baseball diamond which must be touched in succession by a baserunner in order to score a run for that player's team...

583
50‡ San Diego Padres
San Diego Padres
The San Diego Padres are a Major League Baseball team based in San Diego, California. They play in the National League Western Division. Founded in 1969, the Padres have won the National League Pennant twice, in 1984 and 1998, losing in the World Series both times...

LF
Left fielder
In baseball, a left fielder is an outfielder who plays defense in left field. Left field is the area of the outfield to the left of a person standing at home plate and facing towards the pitcher's mound...

/DH
Designated hitter
In baseball, the designated hitter rule is the common name for Major League Baseball Rule 6.10, an official position adopted by the American League in 1973 that allows teams to designate a player, known as the designated hitter , to bat in place of the pitcher each time he would otherwise come to...

355
56‡ Seattle Mariners
Seattle Mariners
The Seattle Mariners are a professional baseball team based in Seattle, Washington. Enfranchised in , the Mariners are a member of the Western Division of Major League Baseball's American League. Safeco Field has been the Mariners' home ballpark since July...

1998 OF
Outfielder
Outfielder is a generic term applied to each of the people playing in the three defensive positions in baseball farthest from the batter. These defenders are the left fielder, the center fielder, and the right fielder...

630
66‡ Chicago Cubs
Chicago Cubs
The Chicago Cubs are a professional baseball team located in Chicago, Illinois. They are members of the Central Division of Major League Baseball's National League. They are one of two Major League clubs based in Chicago . The Cubs are also one of the two remaining charter members of the National...

1998 OF
Outfielder
Outfielder is a generic term applied to each of the people playing in the three defensive positions in baseball farthest from the batter. These defenders are the left fielder, the center fielder, and the right fielder...

609
70‡ St. Louis Cardinals
St. Louis Cardinals
The St. Louis Cardinals are a professional baseball team based in St. Louis, Missouri. They are members of the Central Division in the National League of Major League Baseball. The Cardinals have won eleven World Series championships, the most of any National League team, and second overall only to...

1998^ 1B
First baseman
First base, or 1B, is the first of four stations on a baseball diamond which must be touched in succession by a baserunner in order to score a run for that player's team...

583
63 Chicago Cubs
Chicago Cubs
The Chicago Cubs are a professional baseball team located in Chicago, Illinois. They are members of the Central Division of Major League Baseball's National League. They are one of two Major League clubs based in Chicago . The Cubs are also one of the two remaining charter members of the National...

OF
Outfielder
Outfielder is a generic term applied to each of the people playing in the three defensive positions in baseball farthest from the batter. These defenders are the left fielder, the center fielder, and the right fielder...

609
65 St. Louis Cardinals
St. Louis Cardinals
The St. Louis Cardinals are a professional baseball team based in St. Louis, Missouri. They are members of the Central Division in the National League of Major League Baseball. The Cardinals have won eleven World Series championships, the most of any National League team, and second overall only to...

1999 1B
First baseman
First base, or 1B, is the first of four stations on a baseball diamond which must be touched in succession by a baserunner in order to score a run for that player's team...

583
50 Chicago Cubs
Chicago Cubs
The Chicago Cubs are a professional baseball team located in Chicago, Illinois. They are members of the Central Division of Major League Baseball's National League. They are one of two Major League clubs based in Chicago . The Cubs are also one of the two remaining charter members of the National...

OF
Outfielder
Outfielder is a generic term applied to each of the people playing in the three defensive positions in baseball farthest from the batter. These defenders are the left fielder, the center fielder, and the right fielder...

609
52 Texas Rangers
Texas Rangers (baseball)
The Texas Rangers are a professional baseball team in the Dallas-Fort Worth Metroplex, based in Arlington, Texas. The Rangers are a member of the Western Division of Major League Baseball's American League, and are the reigning A.L. Western Division and A.L. Champions. Since , the Rangers have...

SS
Shortstop
Shortstop, abbreviated SS, is the baseball fielding position between second and third base. Shortstop is often regarded as the most dynamic defensive position in baseball, because there are more right-handed hitters in baseball than left-handed hitters, and most hitters have a tendency to pull the...

626
57‡ Arizona Diamondbacks
Arizona Diamondbacks
The Arizona Diamondbacks are a professional baseball team based in Phoenix. They play in the West Division of Major League Baseball's National League. From 1998 to the present, they have played in Chase Field...

2001 LF
Left fielder
In baseball, a left fielder is an outfielder who plays defense in left field. Left field is the area of the outfield to the left of a person standing at home plate and facing towards the pitcher's mound...

354
64 Chicago Cubs
Chicago Cubs
The Chicago Cubs are a professional baseball team located in Chicago, Illinois. They are members of the Central Division of Major League Baseball's National League. They are one of two Major League clubs based in Chicago . The Cubs are also one of the two remaining charter members of the National...

2001 RF
Right fielder
A right fielder, abbreviated RF, is the outfielder in baseball or softball who plays defense in right field. Right field is the area of the outfield to the right of a person standing at home plate and facing towards the pitcher's mound...

609
73‡ San Francisco Giants
San Francisco Giants
The San Francisco Giants are a Major League Baseball team based in San Francisco, California, playing in the National League West Division....

2001 LF
Left fielder
In baseball, a left fielder is an outfielder who plays defense in left field. Left field is the area of the outfield to the left of a person standing at home plate and facing towards the pitcher's mound...

762
52‡ Cleveland Indians
Cleveland Indians
The Cleveland Indians are a professional baseball team based in Cleveland, Ohio. They are in the Central Division of Major League Baseball's American League. Since , they have played in Progressive Field. The team's spring training facility is in Goodyear, Arizona...

1B
First baseman
First base, or 1B, is the first of four stations on a baseball diamond which must be touched in succession by a baserunner in order to score a run for that player's team...

/DH
Designated hitter
In baseball, the designated hitter rule is the common name for Major League Baseball Rule 6.10, an official position adopted by the American League in 1973 that allows teams to designate a player, known as the designated hitter , to bat in place of the pitcher each time he would otherwise come to...

603
57‡ Texas Rangers
Texas Rangers (baseball)
The Texas Rangers are a professional baseball team in the Dallas-Fort Worth Metroplex, based in Arlington, Texas. The Rangers are a member of the Western Division of Major League Baseball's American League, and are the reigning A.L. Western Division and A.L. Champions. Since , the Rangers have...

2002 SS
Shortstop
Shortstop, abbreviated SS, is the baseball fielding position between second and third base. Shortstop is often regarded as the most dynamic defensive position in baseball, because there are more right-handed hitters in baseball than left-handed hitters, and most hitters have a tendency to pull the...

626
51‡ Atlanta Braves
Atlanta Braves
The Atlanta Braves are a professional baseball club based in Atlanta, Georgia. The Braves are a member of the Eastern Division of Major League Baseball's National League. The Braves have played in Turner Field since 1997....

CF
Center fielder
A center fielder, abbreviated CF, is the outfielder in baseball who plays defense in center field – the baseball fielding position between left field and right field...

414
58‡ Philadelphia Phillies
Philadelphia Phillies
The Philadelphia Phillies are a Major League Baseball team. They are the oldest continuous, one-name, one-city franchise in all of professional American sports, dating to 1883. The Phillies are a member of the Eastern Division of Major League Baseball's National League...

1B
First baseman
First base, or 1B, is the first of four stations on a baseball diamond which must be touched in succession by a baserunner in order to score a run for that player's team...

279
54‡ Boston Red Sox
Boston Red Sox
The Boston Red Sox are a professional baseball team based in Boston, Massachusetts, and a member of Major League Baseball’s American League Eastern Division. Founded in as one of the American League's eight charter franchises, the Red Sox's home ballpark has been Fenway Park since . The "Red Sox"...

2006 DH
Designated hitter
In baseball, the designated hitter rule is the common name for Major League Baseball Rule 6.10, an official position adopted by the American League in 1973 that allows teams to designate a player, known as the designated hitter , to bat in place of the pitcher each time he would otherwise come to...

373
54 New York Yankees
New York Yankees
The New York Yankees are a professional baseball team based in the The Bronx, New York. They compete in Major League Baseball in the American League's East Division...

3B
Third baseman
A third baseman, abbreviated 3B, is the player in baseball whose responsibility is to defend the area nearest to third base — the third of four bases a baserunner must touch in succession to score a run...

613
50‡ Milwaukee Brewers
Milwaukee Brewers
The Milwaukee Brewers are a professional baseball team based in Milwaukee, Wisconsin, currently playing in the Central Division of Major League Baseball's National League...

2007 1B
First baseman
First base, or 1B, is the first of four stations on a baseball diamond which must be touched in succession by a baserunner in order to score a run for that player's team...

219
54‡ Toronto Blue Jays
Toronto Blue Jays
The Toronto Blue Jays are a professional baseball team located in Toronto, Ontario, Canada. The Blue Jays are a member of the Eastern Division of Major League Baseball 's American League ....

2010 3B
Third baseman
A third baseman, abbreviated 3B, is the player in baseball whose responsibility is to defend the area nearest to third base — the third of four bases a baserunner must touch in succession to score a run...

/RF
Right fielder
A right fielder, abbreviated RF, is the outfielder in baseball or softball who plays defense in right field. Right field is the area of the outfield to the right of a person standing at home plate and facing towards the pitcher's mound...

147


† indicates an active player.

‡ indicates a franchise record.

^ indicates previous single-season record.

Career home run totals are as of through 2011.

Cross-membership

Ten members of the club are also members of the 500 home run club
500 home run club
In Major League Baseball , the 500 home run club is a term applied to the group of batters who have hit 500 or more regular-season home runs in their careers. On August 11, 1929, Babe Ruth became the first member of the club. Ruth ended his career with 714 home runs, a record which stood from 1935...

 (Bonds, Foxx, Griffey, Mantle, Mays, McGwire, Rodriguez, Ruth, Sosa, and Thome), while Bonds, Griffey, Mays, Rodriguez, Ruth, Sosa, and Thome are seven of the eight members of the 600-homer club. Conversely, three retired members of the club hit fewer than 300 career home runs: Anderson with 210, Wilson with 244, and Maris with 275. Hank Aaron, with the second most career home runs (755), is not a member of the 50 home run club, never having hit more than 47 home runs in a single season.

Ten players have won their League's Most Valuable Player award during the season in which they hit 50-or-more home runs: Foxx (1938), Mantle (1956), Maris (1961), Mays (1965), Foster (1977), Griffey (1997), Sosa (1998), Bonds (2001), Howard (2006), and Rodriguez (2007). No pair of MVP award winners have ever hit 50-or-more home runs in the same season, nor have consecutive MVPs in the same League. As no rookie has ever hit 50 home runs, no 50-home-run-hitter has ever won the Rookie of the Year award; the closest any rookie has come to hitting 50 was in 1987, when McGwire hit 49 (and was named AL Rookie of the Year).

Mickey Mantle is the only batter ever to have claimed a Triple Crown
Triple crown (baseball)
In Major League Baseball, a player earns the Triple Crown when he leads a league in three specific statistical categories. For batters, a player must lead the league in home runs, run batted in , and batting average; pitchers must lead the league in wins, strikeouts, and earned run average...

 during his 50-home-run season, having led the American League with a .353 batting average and 130 RBI in 1956. That season, Mantle also claimed the rarer Major League Triple Crown, having led both leagues in all three statistical categories.

Four batters have hit 50 or more home runs for a team that went on to win a world championship
World Series
The World Series is the annual championship series of Major League Baseball, played between the American League and National League champions since 1903. The winner of the World Series championship is determined through a best-of-seven playoff and awarded the Commissioner's Trophy...

 in the same season: Babe Ruth's New York Yankees won in 1927
1927 World Series
In the 1927 World Series, the New York Yankees swept the Pittsburgh Pirates in four games. This was the first sweep of a National League team by an American League team....

 and 1928
1928 World Series
In the 1928 World Series, the New York Yankees swept the St. Louis Cardinals in four games. Along with , this was the first time a team had swept consecutive Series....

, Mickey Mantle's Yankees won in 1956
1956 World Series
The 1956 World Series of Major League Baseball was played between the New York Yankees and the defending champion Brooklyn Dodgers during the month of October 1956. The Series was a rematch of the 1955 World Series...

, while Mantle and Roger Maris's Yankees won in 1961
1961 World Series
The 1961 World Series matched the New York Yankees against the Cincinnati Reds , with the Yankees winning in five games to earn their 19th championship in 39 seasons. This World Series was surrounded by Cold War political puns pitting the "Reds" against the "Yanks"...

, and Luis Gonzalez's Arizona Diamondbacks won in 2001
2001 World Series
-Game 1:Saturday, October 27, 2001 at Bank One Ballpark in Phoenix, ArizonaArizona showed no fear and chased Yankees starter Mike Mussina after just three innings. The Yankees gave up five unearned runs and the Diamondbacks rode Curt Schilling's seven strong innings to a 9–1 rout...

. Albert Belle went to the World Series immediately following his 50-home-run season, though the Cleveland Indians lost to the Atlanta Braves in 1995
1995 World Series
-Game 1:Saturday, October 21, 1995 at Atlanta-Fulton County Stadium in Atlanta, GeorgiaAtlanta ace Greg Maddux pitched a two-hit complete game victory in his first World Series appearance ....

.

Belle is also the only member of the Club to have hit 50 or more doubles in the same season, creating a unique 50–50 Club by leading the American League (along with Edgar Martinez
Edgar Martinez
Edgar Martínez , nicknamed "Gar" and "Papi", is a former Major League Baseball third baseman and designated hitter. He spent his entire 18-year Major League career with the Seattle Mariners. He is the cousin of Carmelo Martínez.-Seattle Mariners:On December 19, 1982, the Seattle Mariners signed...

) with 52 doubles along with his 50 home runs in 1995.

Cecil Fielder (1990) and Prince Fielder (2007) are the only father-son combination among the members of the 50 home run club.

Home run frequency

Ruth was the first batter to average fewer than nine at-bats per home run over a season, hitting his 54 home runs of the 1920 season in 457 at-bats for an average of 8.463. Seventy-eight years later, McGwire became the first batter to average fewer than eight AB/HR, hitting his 70 home runs of the 1998 season in 509 at-bats for an average of 7.2714. Three years later, Bonds became the first batter to average fewer than seven AB/HR, setting the Major League record by hitting his 73 home runs of the 2001 season in 476 at-bats for an average of 6.5205.

Ruth, McGwire and Bonds are the only batters in history to average nine or fewer AB/HR over a season, having done so nine times:
Nine or fewer at-bats per home run
Batter Season HR AB AB/HR
Babe Ruth 1920 54 457 8.4630
Babe Ruth 1927 60 540 9.0000
Mark McGwire 1996 52 423 8.1346
Mark McGwire 1998 70 509 7.2714
Mark McGwire 1999 65 521 8.0154
Barry Bonds 2001 73 476 6.5205
Barry Bonds 2002 46 403 8.7610
Barry Bonds 2003 45 390 8.6670
Barry Bonds 2004 45 373 8.2890
The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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