The former star in Cuban baseball Yoenes Cespedes has 12 homers so far in his debut season in Major League Baseball. Among those playing in their first season in MLB in 2012, the 26-year-old Cespedes has the most homers right now, but Will Middlebrooks is right behind him with 11 for the Red Sox. Other recent debut season home run leaders:
2011 Eric Hosmer, 19 homers
2010 Mike (now Giancarlo) Stanton, 22
2009 Colby Rasmus, 19
2008 Evan Longoria, 27
2007 Dan Uggla, 27
More in the same vein after the jump
Seven men have hit 30 or more homers in their very first season in the major leagues:
Wally Berger (1930) and Frank Robinson (1956), 38 homers
Albert Pujols (2001), 37
Ryan Braun (2007), 34
Jimmie Hall (1963), 33
Ted Williams (1939), 31
Pete Incaviglia (1986), 30
So Wally Berger and Frank Robinson jointly hold the record for most homers in a debut season in the majors. How about over a player’s first two seasons? Joe DiMaggio totalled 75 homers over his first two seasons in the majors (29 homers in 1936 and 46 in 1937). That’s the most for any player over his first two seasons. Here’s a list of the record holders for most career homers after each set of seasons beginning with the debut season:
Most Career Homers Through First Season in the Majors: Wally Berger and Frank Robinson, 38 homers
Most Career Homers Through Second Season in the Majors: Joe DiMaggio, 75
Most Career Homers Through Third Season in the Majors: Ralph Kiner and Albert Pujols, 114
Most Career Homers Through Fourth Season in the Majors: Ralph Kiner, 168
Most Career Homers Through Fifth Season in the Majors: Ralph Kiner, 215
Most Career Homers Through Sixth Season in the Majors: Ralph Kiner, 257
Most Career Homers Through Seventh Season in the Majors: Ralph Kiner, 294
Most Career Homers Through Eighth Season in the Majors: Ralph Kiner, 329
Most Career Homers Through Ninth Season in the Majors: Albert Pujols, 366
Most Career Homers Through Tenth Season in the Majors: Albert Pujols, 408
Most Career Homers Through Eleventh Season in the Majors: Albert Pujols, 445
Most Career Homers Through Twelfth Season in the Majors: Albert Pujols, 462 (and counting)
Most Career Homers Through Thirteenth Season in the Majors: Alex Rodriguez, 464
Most Career Homers Through Fourteenth Season in the Majors: Mark McGwire, 522
Most Career Homers Through Fifteenth Season in the Majors: Mark McGwire, 554
Most Career Homers Through Sixteenth Season in the Majors: Mark McGwire and Alex Rodriguez, 583
Most Career Homers Through Seventeenth Season in the Majors: Barry Bonds and Alex Rodriguez, 613
Most Career Homers Through Eighteenth Season in the Majors: Barry Bonds, 658
Most Career Homers Through Nineteenth Season in the Majors: Barry Bonds, 703
Most Career Homers Through Twentieth Season in the Majors: Hank Aaron, 713
Most Career Homers Through Twenty-First Season in the Majors: Barry Bonds, 734
Most Career Homers Through Twenty-Second Season in the Majors: Barry Bonds, 762