In Major League Baseball (MLB), the 40–40 club is the group of batters who have collected 40 home runs and 40 stolen bases in a single season. Jose Canseco was the first to achieve this, doing so in 1988 after having predicted the feat in April of that year. The most recent player to reach the milestone is Alfonso Soriano, achieving the feat during the 2006 season.
In total, only four players have reached the 40–40 club in MLB history and none have done so more than once. Of these, three were right-handed batters and one was left-handed. Two players—Barry Bonds and Alex Rodriguez—are also members of the 600 home run club. Jose Canseco is the only player to have won the MVP Award in the same year of his 40–40 season; he's also the only one to lead his club to the postseason making it to the World Series. Alfonso Soriano collected 41 doubles alongside achieving 40–40. Rodriguez is the only non-outfielder to attain 40–40.[a] All four 40-40 club members had at least 400 career home runs and 200 stolen bases.
Becoming a member of the 40–40 club is an elusive achievement in modern American baseball, as players who possess the power to hit 40 home runs and the speed to steal 40 bases in a season are rare. Generally a player with the strength to hit 40 home runs will not have nearly the speed necessary to steal 40 bases, and vice versa. This remains true even as statistical trends change in baseball — stolen base totals in the 1980s were unusually high, but very few players reached 40 home runs; home run totals were extremely high in the late 1990s, but stolen bases became more rare as the steal was a sparingly used tactic. Bonds achieved the feat when his body was lean and quick, before his body grew thicker.
Due to the modernity of the 40–40 club, as well as the links to the use of performance-enhancing drugs by Bonds, Canseco and Rodriguez, no eligible club members have been elected to the Baseball Hall of Fame. Eligibility requires that a player has "been retired five seasons" or deceased for at least six months, disqualifying active players. With Rodriguez's retirement in 2016, there are no active players that have achieved a 40-40 season. Bonds remains on the Hall of Fame Ballot, and Soriano will be eligible for the Hall of Fame in 2020.
Bonds and Canseco were both implicated in the December 2007 Mitchell Report, while Rodriguez admitted in 2009 to using steroids. Soriano is also the only player to achieve the feat while playing at home. After stealing a base in an October 2, 2015 game for the NC Dinos, first baseman Eric Thames became the first player to join the Korea Baseball Organization's 40–40 club.
|Year||The year the player's 40–40 season occurred|
|Player||Name of the player|
|Team||The player's team for his 40–40 season|
|HR||Number of home runs in that year|
|SB||Number of stolen bases in that year|
|Elected to the Baseball Hall of Fame|
|Player is active|
|1988||Jose Canseco||Oakland Athletics||42||40|||
|1996||Barry Bonds||San Francisco Giants||42||40|||
|1998||Alex Rodriguez||Seattle Mariners||42||46|||
|2006||Alfonso Soriano||Washington Nationals||46||41|||
The first player to approach the mark was Ken Williams in 1922, with 39 home runs and 37 stolen bases, thus making him the first player to reach the 30–30 club. It would take another 30 years for another player to come close to 40–40, as Willie Mays did in 1956 with 36 home runs and 40 stolen bases. Bobby Bonds hit his 38th home run of the season on September 9, 1973, but came up one home run shy of becoming the founding member of the club after hitting just one home run in the Giants' final 21 games.
When Canseco predicted he would reach 40–40 in 1988, he mistakenly assumed "five or six players must have done it." After Canseco became the first member of the club, Hall of Famer Mickey Mantle was quoted as saying, "Hell, If I'd known 40–40 was going to be a big deal, I'd have done it every year!" Mantle's career best for stolen bases in a single season was 21.
In 2002, both Vladimir Guerrero of the Montreal Expos and Alfonso Soriano of the New York Yankees were only one home run short of reaching 40–40 after achieving 39, with 40 stolen bases. In 2004, Carlos Beltrán was two home runs shy as he hit 38 and collected 43 steals, splitting the season between the Kansas City Royals and Houston Astros. In 2011, Matt Kemp came up one home run shy, as he hit 39 and stole 40 bases.
- Soriano, who played second base exclusively from 2001 through 2005, moved to left field starting in 2006 (which, coincidentally, was his 40–40 season).
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