List of Boston Red Sox minor league affiliates

1990–present

The current structure of minor league baseball has been in effect since the 1990 season when the Class A level was subdivided for a second time with the creation of Advanced A. The Rookie level consists of domestic and foreign circuits, the latter based in the Dominican Republic and Venezuela.^[1]

Year	AAA	AA	Advanced A	A	Short Season A	Rookie	Foreign Rookie
2020			Salem Red Sox
2019			Salem Red Sox
2018		Portland Sea Dogs	Salem Red Sox
2017		Portland Sea Dogs	Salem Red Sox
2016	Pawtucket Red Sox	Portland Sea Dogs	Salem Red Sox	Greenville Drive	Lowell Spinners	GCL Red Sox
2015	Pawtucket Red Sox	Portland Sea Dogs	Salem Red Sox	Greenville Drive	Lowell Spinners	GCL Red Sox
2014	Pawtucket Red Sox	Portland Sea Dogs	Salem Red Sox	Greenville Drive	Lowell Spinners	GCL Red Sox	DSL Red Sox
2013	Pawtucket Red Sox	Portland Sea Dogs	Salem Red Sox	Greenville Drive	Lowell Spinners	GCL Red Sox	DSL Red Sox
2012	Pawtucket Red Sox	Portland Sea Dogs	Salem Red Sox	Greenville Drive	Lowell Spinners	GCL Red Sox	DSL Red Sox
2011	Pawtucket Red Sox	Portland Sea Dogs	Salem Red Sox	Greenville Drive	Lowell Spinners	GCL Red Sox	DSL Red Sox
2010	Pawtucket Red Sox	Portland Sea Dogs	Salem Red Sox	Greenville Drive	Lowell Spinners	GCL Red Sox	DSL Red Sox
2009	Pawtucket Red Sox	Portland Sea Dogs	Salem Red Sox	Greenville Drive	Lowell Spinners	GCL Red Sox	DSL Red Sox
2008	Pawtucket Red Sox	Portland Sea Dogs	Lancaster JetHawks	Greenville Drive	Lowell Spinners	GCL Red Sox	DSL Red Sox
2007	Pawtucket Red Sox	Portland Sea Dogs	Lancaster JetHawks	Greenville Drive	Lowell Spinners	GCL Red Sox	DSL Red Sox
2006	Pawtucket Red Sox	Portland Sea Dogs	Wilmington Blue Rocks	Greenville Drive	Lowell Spinners	GCL Red Sox	DSL Red Sox
2005	Pawtucket Red Sox	Portland Sea Dogs	Wilmington Blue Rocks	Greenville Bombers	Lowell Spinners	GCL Red Sox	DSL Red Sox
2004	Pawtucket Red Sox	Portland Sea Dogs	Sarasota Red Sox	Augusta GreenJackets	Lowell Spinners	GCL Red Sox	DSL Red Sox Ciudad Alianza
2003	Pawtucket Red Sox	Portland Sea Dogs	Sarasota Red Sox	Augusta GreenJackets	Lowell Spinners	GCL Red Sox	DSL Red Sox 1 DSL Red Sox 2
2002	Pawtucket Red Sox	Trenton Thunder	Sarasota Red Sox	Augusta GreenJackets	Lowell Spinners	GCL Red Sox	DSL Red Sox
2001	Pawtucket Red Sox	Trenton Thunder	Sarasota Red Sox	Augusta GreenJackets	Lowell Spinners	GCL Red Sox	DSL Red Sox
2000	Pawtucket Red Sox	Trenton Thunder	Sarasota Red Sox	Augusta GreenJackets	Lowell Spinners	GCL Red Sox	DSL Red Sox
1999	Pawtucket Red Sox	Trenton Thunder	Sarasota Red Sox	Augusta GreenJackets	Lowell Spinners	GCL Red Sox	DSL Red Sox
1998	Pawtucket Red Sox	Trenton Thunder	Sarasota Red Sox	Michigan Battle Cats	Lowell Spinners	GCL Red Sox	DSL Red Sox
1997	Pawtucket Red Sox	Trenton Thunder	Sarasota Red Sox	Michigan Battle Cats	Lowell Spinners	GCL Red Sox	DSL Red Sox
1996	Pawtucket Red Sox	Trenton Thunder	Sarasota Red Sox	Michigan Battle Cats	Lowell Spinners	GCL Red Sox
1995	Pawtucket Red Sox	Trenton Thunder	Sarasota Red Sox	Michigan Battle Cats	Utica Blue Sox	GCL Red Sox
1994	Pawtucket Red Sox	New Britain Red Sox	Sarasota Red Sox, Lynchburg Red Sox		Utica Blue Sox	GCL Red Sox
1993	Pawtucket Red Sox	New Britain Red Sox	Fort Lauderdale Red Sox, Lynchburg Red Sox		Utica Blue Sox	GCL Red Sox
1992	Pawtucket Red Sox	New Britain Red Sox	Winter Haven Red Sox, Lynchburg Red Sox		Elmira Pioneers	GCL Red Sox
1991	Pawtucket Red Sox	New Britain Red Sox	Winter Haven Red Sox, Lynchburg Red Sox		Elmira Pioneers	GCL Red Sox
1990	Pawtucket Red Sox	New Britain Red Sox	Winter Haven Red Sox, Lynchburg Red Sox		Elmira Pioneers	GCL Red Sox

1963–1989

The foundation of the minors' current structure was the result of a reorganization initiated by Major League Baseball (MLB) before the 1963 season. The reduction from six classes to four (AAA, AA, A and Rookie) was a response to the general decline of the minors throughout the 1950s and early-1960s when leagues and teams folded due to shrinking attendance caused by baseball fans' preference for staying at home to watch MLB games on television. The only change made within the next 27 years was Class A being subdivided for the first time to form Short Season A in 1966.^[1]

Year	AAA	AA	A	Short Season A	Rookie
1989	Pawtucket Red Sox	New Britain Red Sox	Winter Haven Red Sox, Lynchburg Red Sox	Elmira Pioneers	GCL Red Sox
1988	Pawtucket Red Sox	New Britain Red Sox	Winter Haven Red Sox, Lynchburg Red Sox	Elmira Pioneers
1987	Pawtucket Red Sox	New Britain Red Sox	Winter Haven Red Sox, Greensboro Hornets	Elmira Pioneers
1986	Pawtucket Red Sox	New Britain Red Sox	Winter Haven Red Sox, Greensboro Hornets	Elmira Pioneers
1985	Pawtucket Red Sox	New Britain Red Sox	Winter Haven Red Sox, Greensboro Hornets	Elmira Pioneers
1984	Pawtucket Red Sox	New Britain Red Sox	Winter Haven Red Sox, Winston-Salem Spirits	Elmira Pioneers
1983	Pawtucket Red Sox	New Britain Red Sox	Winter Haven Red Sox, Winston-Salem Red Sox	Elmira Pioneers
1982	Pawtucket Red Sox	Bristol Red Sox	Winter Haven Red Sox, Winston-Salem Red Sox	Elmira Pioneers
1981	Pawtucket Red Sox	Bristol Red Sox	Winter Haven Red Sox, Winston-Salem Red Sox	Elmira Pioneers
1980	Pawtucket Red Sox	Bristol Red Sox	Winter Haven Red Sox, Winston-Salem Red Sox	Elmira Pioneers
1979[2]	Pawtucket Red Sox	Bristol Red Sox	Winter Haven Red Sox, Winston-Salem Red Sox	Elmira Pioneers
1978	Pawtucket Red Sox	Bristol Red Sox	Winter Haven Red Sox, Winston-Salem Red Sox	Elmira Pioneers
1977	Pawtucket Red Sox	Bristol Red Sox	Winter Haven Red Sox, Winston-Salem Red Sox	Elmira Pioneers
1976	Rhode Island Red Sox	Bristol Red Sox	Winter Haven Red Sox, Winston-Salem Red Sox	Elmira Pioneers
1975	Pawtucket Red Sox	Bristol Red Sox	Winter Haven Red Sox, Winston-Salem Red Sox	Elmira Pioneers
1974[3]	Pawtucket Red Sox	Bristol Red Sox	Winter Haven Red Sox, Winston-Salem Red Sox	Elmira Pioneers
1973	Pawtucket Red Sox	Bristol Red Sox	Winter Haven Red Sox, Winston-Salem Red Sox	Elmira Pioneers
1972	Louisville Colonels	Pawtucket Red Sox	Winter Haven Red Sox, Winston-Salem Red Sox	Williamsport Red Sox
1971	Louisville Colonels	Pawtucket Red Sox	Winter Haven Red Sox, Winston-Salem Red Sox, Greenville Red Sox	Williamsport Red Sox
1970	Louisville Colonels	Pawtucket Red Sox	Winter Haven Red Sox, Winston-Salem Red Sox, Greenville Red Sox	Jamestown Falcons
1969	Louisville Colonels	Pittsfield Red Sox	Winter Haven Red Sox, Winston-Salem Red Sox, Greenville Red Sox	Jamestown Falcons
1968	Louisville Colonels	Pittsfield Red Sox	Winston-Salem Red Sox, Greenville Red Sox, Waterloo Hawks	Jamestown Falcons
1967	Toronto Maple Leafs	Pittsfield Red Sox	Winston-Salem Red Sox, Greenville Red Sox, Waterloo Hawks
1966	Toronto Maple Leafs	Pittsfield Red Sox	Winston-Salem Red Sox, Waterloo Hawks, Oneonta Red Sox		Covington Red Sox
1965[4]	Toronto Maple Leafs	Pittsfield Red Sox	Winston-Salem Red Sox, Waterloo Hawks, Wellsville Red Sox		Harlan Red Sox
1964	Seattle Rainiers	Reading Red Sox	Winston-Salem Red Sox, Waterloo Hawks, Wellsville Red Sox
1963[5]	Seattle Rainiers	Reading Red Sox	Winston-Salem Red Sox, Waterloo Hawks, Wellsville Red Sox

Pre-1963

The minors operated with six classes (AAA, AA, A, B, C, D) from 1946 to 1962. The Pacific Coast League (PCL) was reclassified from AAA to Open in 1952 due to the possibility of becoming a third major league. This arrangement ended following the 1957 season when the relocation of the National League's Dodgers and Giants to the West Coast killed any chance of the PCL being promoted. The 1963 reorganization resulted in the Eastern and South Atlantic Leagues being elevated from A to AA, five of seven Class D circuits plus the ones in B and C upgraded to A and the Appalachian League reclassified from D to Rookie. The Alabama–Florida League folded following the 1962 campaign.^[1]

Year	AAA	AA	A	B	C	D
1962	Seattle Rainiers		York White Roses	Winston-Salem Red Sox	Pocatello Chiefs	Waterloo Hawks Olean Red Sox
1961	Seattle Rainiers		Johnstown Red Sox	Winston-Salem Red Sox		Waterloo Hawks Alpine Cowboys Olean Red Sox
1960	Minneapolis Millers		Allentown Red Sox	Raleigh Capitals		Waterloo Hawks Corning Red Sox Alpine Cowboys
1959	Minneapolis Millers		Allentown Red Sox	Raleigh Capitals		Waterloo Hawks Corning Cor-Sox Alpine Cowboys
1958	Minneapolis Millers	Memphis Chickasaws	Allentown Red Sox	Raleigh Capitals		Waterloo Hawks Corning Red Sox Lexington Red Sox
1957[6]	San Francisco Seals (Open)	Oklahoma City Indians	Albany Senators	Greensboro Patriots		Corning Red Sox Lexington Red Sox Lafayette Red Sox
1956	San Francisco Seals (Open)	Oklahoma City Indians	Albany Senators	Greensboro Patriots		Corning Red Sox Lexington Red Sox Lafayette Red Sox
1955	Louisville Colonels		Montgomery Rebels	Greensboro Patriots	San Jose Red Sox	Corning Red Sox Bluefield Blue-Grays
1954	Louisville Colonels		Albany Senators	Greensboro Patriots	San Jose Red Sox	Corning Red Sox Bluefield Blue-Grays
1953	Louisville Colonels		Albany Senators	Roanoke Ro-Sox Greensboro Patriots	San Jose Red Sox	Salisbury Rocots
1952	Louisville Colonels	Birmingham Barons	Albany Senators	Roanoke Ro-Sox	San Jose Red Sox	High Point-Thomasville Hi-Toms
1951	Louisville Colonels	Birmingham Barons	Scranton Red Sox	Roanoke Ro-Sox	San Jose Red Sox Oneonta Red Sox	Marion Red Sox High Point-Thomasville Hi-Toms
1950	Louisville Colonels	Birmingham Barons	Scranton Red Sox	Roanoke Red Sox	San Jose Red Sox Oneonta Red Sox	Marion Red Sox Kinston Eagles
1949	Louisville Colonels	Birmingham Barons	Scranton Red Sox	Roanoke Red Sox	San Jose Red Sox Oneonta Red Sox	Marion Red Sox Valley Rebels Hornell Maple Leafs
1948[7]	Louisville Colonels	Birmingham Barons	Scranton Red Sox	Roanoke Red Sox Lynn Red Sox	San Jose Red Sox Oneonta Red Sox Auburn Cayugas El Paso Texans	Milford Red Sox Wellsville Nitros Valley Rebels Oroville Red Sox
1947	Louisville Colonels Toronto Maple Leafs	New Orleans Pelicans	Scranton Red Sox	Roanoke Red Sox Lynn Red Sox	San Jose Red Sox Oneonta Red Sox	Milford Red Sox Wellsville Nitros
1946	Louisville Colonels	New Orleans Pelicans	Scranton Red Sox	Roanoke Red Sox Lynn Red Sox	Oneonta Red Sox	Milford Red Sox Tarboro Tars Geneva Red Birds New Iberia Cardinals
1945		Louisville Colonels	Scranton Red Sox	Roanoke Red Sox
1944		Louisville Colonels	Scranton Red Sox	Roanoke Red Sox		Middletown Red Sox
1943		Louisville Colonels	Scranton Red Sox	Roanoke Red Sox
1942		Louisville Colonels	Scranton Red Sox	Greensboro Red Sox	Canton Terriers Oneonta Indians	Danville-Schoolfield Leafs Owensboro Oilers
1941		Louisville Colonels	Scranton Red Sox	Greensboro Red Sox	Canton Terriers Oneonta Indians	Danville-Schoolfield Leafs Centreville Red Sox Owensboro Oilers
1940		Louisville Colonels	Scranton Red Sox Little Rock Travelers	Rocky Mount Red Sox	Canton Terriers	Elizabethton Betsy Red Sox Danville-Schoolfield Leafs Centreville Red Sox
1939		Louisville Colonels	Scranton Red Sox Little Rock Travelers	Rocky Mount Red Sox	Canton Terriers Clarksdale Red Sox	Elizabethton Betsy Red Sox Danville-Schoolfield Leafs Centreville Colts
1938		Minneapolis Millers	Little Rock Travelers Hazleton Red Sox	Rocky Mount Red Sox	Canton Terriers Clarksdale Red Sox	Elizabethton Betsy Red Sox Crookston Pirates
1937		San Diego Padres Minneapolis Millers	Little Rock Travelers Hazleton Red Sox	Rocky Mount Red Sox	Canton Terriers Brockville Blues	Elizabethton Betsy Red Sox Centreville Colts Mansfield Red Sox Moultrie Packers
1936		San Diego Padres Syracuse Chiefs	Little Rock Travelers Elmira Pioneers	Rocky Mount Red Sox	Canton Terriers	McKeesport Tubers Eau Claire Bears
1935		Syracuse Chiefs	Knoxville Smokies	Charlotte Hornets	Shreveport Sports/Gladewater Bears
1934		Syracuse Chiefs	Reading Red Sox	Columbia Sandlappers/Asheville Tourists	Joplin Miners
1933			Reading Red Sox
1932				Hazleton Mountaineers Wilmington Pirates

References

1. Cronin, John "Truth in the Minor League Class Structure: The Case for the Reclassification of the Minors" The Baseball Research Journal (Society for American Baseball Research), Spring 2013
2. Official Baseball Dope Book. St. Louis, Missouri: The Sporting News, 1979.
3. Official Baseball Dope Book. St. Louis, Missouri: The Sporting News, 1974.
4. Official Baseball Dope Book. St. Louis, Missouri: The Sporting News, 1965.
5. Official Baseball Record Book. St. Louis, Missouri: The Sporting News, 1963.
6. Official Baseball Guide. St. Louis, Missouri: The Sporting News, 1957.
7. Official Baseball Guide. St. Louis, Missouri: The Sporting News, 1948.

External links

• Boston Red Sox Minor League Affiliates Baseball-Reference.com