Off-beat stats.(baseball statistics)

Players Who Hit A Home Run in the Major Leagues Before Their 20th Birthday (Since 1900 * (*) Active players)

FROM 1900 THROUGH 2000, THERE HAVE BEEN 88 PLAYERS WHO HIT A HOME RUN IN THE major leagues before the age of 20. Among these teenage sluggers, 14 are members of the Hall of Fame and four--Jimmie Foxx, Harmon Killebrew, Mickey Mantle, Mel Ott--went on to hit 500 lifetime home runs. The following list includes major leaguers who homered before they turned 20 years old, the date of their birth, the date of their first big league homer and the pitcher they connected against. (Source: Home Run Encyclopedia)

 
                                      1st Big League HR, 
Player, Team         Birthdate        Opposing Pitcher 
 
Adrian Beltre,       April 7, 1979    June 30, 1998 vs. 
Dodgers(*)                            Rick Helling, Rangers 
 
Johnny Bench,        Dec. 7, 1947     Sept. 20, 1967 vs. 
Reds                                  Jim Britton, Braves 
 
Reno Bertoia,        Jan. 8, 1935     July 11, 1954 vs. 
Tigers                                Bob Chakales, Orioles 
 
Clete Boyer,         Feb. 9, 1937     Aug. 9, 1956 vs. 
A's                                   Virgil Trucks, Tigers 
 
Dick Brodowski,      July 26, 1932    July 11, 1952 vs. 
Red Sox                               Ted Gray, Tigers 
 
Jim Brown,           Mar. 31, 1897    Sept. 8, 1916 vs. 
A's                                   Allan Russell, Yankees 
 
Tommy Brown,         Dec. 6, 1927     Aug. 20, 1945 vs. 
Dodgers                               Preacher Roe, Pirates 
 
Johnny Callison,     Mar. 12, 1939    Sept. 14, 1958 vs. 
White Sox                             Russ Kemmerer, Senators 
 
Jack Calvo,          June 11, 1894    June 5, 1913 vs. 
Senators                              Roy Mitchell, Browns 
 
Wayne Causey,        Dec. 26, 1936    June 17, 1955 vs. 
Orioles                               Steve Gromek, Tigers 
 
Phil Cavarretta,     July 19, 1916    Sept. 25, 1934 vs. 
Cubs                                  Whitey Wistert, Reds 
 
Cesar Cedeno,        Feb. 25, 1951    July 6, 1970 vs. 
Astros                                Claude Osteen, Dodgers 
 
Harry Chiti,         Nov. 16, 1932    April 29, 1952 vs. 
Cubs                                  Curt Simmons, Phillies 
 
Ty Cobb,             Dec. 18, 1886    Sept. 23, 1905 vs. 
Tigers                                Cy Falkenberg, Senators 
 
Tony Conigliaro,     Jan. 7, 1945     April 17, 1964 vs. 
Red Sox                               Joe Horlen, White Sox 
 
Billy Consolo,       Aug. 18, 1934    Aug. 1, 1953 vs. 
Red Sox                               Steve Gromek, Tigers 
 
Dale Coogan,         Aug. 14, 1930    June 24, 1950 vs. 
Pirates                               Ralph Branca, Dodgers 
 
Del Crandall,        Mar. 5, 1930     July 2, 1949 vs. 
Braves                                Blix Donnelly, Phillies 
 
Brock Davis,         Oct. 19, 1943    June 14, 1963 vs. 
Astros                                Jack Sanford, Giants 
 
Chubby Dean,         Aug. 24, 1916    Aug. 23, 1936 vs. 
A's                                   Pete Appleton, Senators 
 
Bobby Del Greco,     April 7, 1933    June 9, 1952 vs. 
Pirates                               Jim Wilson, Braves 
 
Larry Dierker,       Sept. 22, 1946   Aug. 3, 1965 vs. 
Astros                                Bob Purkey, Cardinals 
 
Bobby Doerr,         April 7, 1918    April 24, 1937 vs. 
Red Sox                               Pat Malone, Yankees 
 
Dave Duncan,         Sept. 26, 1945   Sept. 25, 1964 vs. 
A's                                   Juan Pizarro, White Sox 
 
Elbie Fletcher,      Mar. 18, 1916    Sept. 9, 1935 vs. 
Braves                                Tex Carleton, Cubs 
 
Curt Flood,          Jan. 18, 1938    Sept. 25, 1957 vs. 
Reds                                  Moe Drabowsky, Cubs 
 
Jimmie Foxx,         Oct. 22, 1907    May 31, 1927 vs. 
A's                                   Urban Shocker, Yankees 
 
Oscar Gamble,        Dec. 20, 1949    Sept. 16, 1969 vs. 
Cubs                                  Jerry Robertson, Expos 
 
Juan Gonzalez,       Oct. 20, 1969    Sept. 18, 1989 vs. 
Rangers(*)                            Scott Bankhead, Mariners 
 
Greg Goossen,        Dec. 14, 1945    Sept. 25, 1965 vs. 
Mets                                  Bo Belinsky, Phillies 
 
Ken Griffey, Jr.,    Nov. 21, 1969    April 10, 1989 vs. 
Mariners(*)                           Eric King, White Sox 
 
Frankie Hayes,       Oct. 13, 1914    April 18, 1934 vs. 
A's                                   Red Ruffing, Yankees 
 
Bunny Hearn,         May 21, 1891     Oct. 10, 1910 vs. 
Cardinals                             Orlie Weaver, Cubs 
 
Harry Heilmann,      Aug. 3, 1894     July 5, 1914 vs. 
Tigers                                Earl Hamilton, Browns 
 
Tony Horton,         Dec. 6, 1944     Aug. 8, 1964 vs. 
Red Sox                               Fred Talbot, White Sox 
 
Ken Hubbs,           Dec. 23, 1941    Sept. 27, 1961 vs. 
Cubs                                  Curt Simmons, Cardinals 
 
Herb Hunter,         Dec. 25, 1896    Aug. 25, 1916 vs. 
Giants                                Bob Harmon, Pirates 
 
Travis Jackson,      Nov. 2, 1903     July 2, 1923 vs. 
Giants                                Clarence Mitchell, Phillies 
 
Andruw Jones,        April 23, 1977   Aug. 16, 1996 vs. 
Braves(*)                             Denny Neagle, Pirates 
 
Al Kaline,           Dec. 19, 1934    Sept. 26, 1953 vs. 
Tigers                                Dave Hoskins, Indians 
 
Ted Kazanski,        Jan. 25, 1934    July 19, 1953 vs. 
Phillies                            ...