- 1990–present
- 1963–1989
- 1923–1962
- References
- External links
{{location map+ |USA |float=right |width=400|alt=Current Oakland Athletics domestic minor league affiliate locations|caption=Current Oakland Athletics domestic minor league affiliate locations |places={{location map~ |USA |lat=37.751667 |long=-122.200556 |mark = Red pog.svg |marksize=6 |label=Oakland Athletics|label_size=80|position=top}}{{location map~ |USA |lat=36.152278 |long=-115.329417 |mark = Blue pog.svg |marksize=6 |label=Las Vegas Aviators|label_size=80|position=right}}{{location map~ |USA |lat=31.987332 |long=-102.155799 |mark = Blue pog.svg |marksize=6 |label=Midland RockHounds|label_size=80|position=right}}{{location map~ |USA |lat=37.954856 |long=-121.297956 |mark = Blue pog.svg |marksize=6 |label=Stockton Ports|label_size=80|position=right}}{{location map~ |USA |lat=42.53539 |long=-89.007947 |mark = Blue pog.svg |marksize=6 |label=Beloit Snappers|label_size=80|position=right}}{{location map~ |USA |lat=44.481656 |long=-73.187656 |mark = Blue pog.svg |marksize=6 |label=Vermont Lake Monsters|label_size=80|position=right}}{{location map~ |USA |lat=33.428285 |long=-111.829762 |mark = Blue pog.svg |marksize=6 |label=AZL Athletics|label_size=80|position=right}} }}The Oakland Athletics farm system consists of seven Minor League Baseball affiliates across the United States and in the Dominican Republic.[1] Five teams are independently owned, while two—the Arizona League Athletics and Dominican Summer League Athletics—are owned by the major league club. The Athletics have been affiliated with the Double-A Midland RockHounds of the Texas League since 1999, making it the longest-running active affiliation in the organization among teams not owned by the Athletics.[2] Their newest affiliate is the Las Vegas Aviators of the Pacific Coast League which became the Athletics' Triple-A club in 2019.[2] The longest affiliation in team history was the 30-year relationship with the Class A-Advanced California League's Modesto A's from 1975 to 2004.[2] Geographically, Oakland's closest domestic affiliate is the Stockton Ports of the Class A-Advanced California League which is approximately {{convert|51|mi|km}} away. Oakland's furthest domestic affiliate is the Vermont Lake Monsters of the Class A Short Season New York–Penn League some {{convert|2554|mi|km}} away. 1990–presentThe 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 Class A-Advanced. The Rookie level consists of domestic and foreign circuits.[3] Triple-A | Double-A | Class A-Advanced | Class A | Class A Short Season | Rookie League | Foreign Rookie |
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2020 | Las Vegas Aviators[4] | Midland RockHounds[5] | Stockton Ports[6] | Beloit Snappers[7] | Vermont Lake Monsters[8] | AZL Athletics | DSL Athletics |
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2019 | Las Vegas Aviators | Midland RockHounds | Stockton Ports | Beloit Snappers | Vermont Lake Monsters | AZL Athletics | DSL Athletics |
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2018 | Nashville Sounds[9] | Midland RockHounds | Stockton Ports | Beloit Snappers | Vermont Lake Monsters | AZL Athletics | DSL Athletics |
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2017 | Nashville Sounds | Midland RockHounds | Stockton Ports | Beloit Snappers | Vermont Lake Monsters | AZL Athletics | DSL Athletics |
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2016 | Nashville Sounds | Midland RockHounds | Stockton Ports | Beloit Snappers | Vermont Lake Monsters | AZL Athletics | DSL Athletics |
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2015 | Nashville Sounds | Midland RockHounds | Stockton Ports | Beloit Snappers | Vermont Lake Monsters | AZL Athletics | DSL Athletics |
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2014 | Sacramento River Cats | Midland RockHounds | Stockton Ports | Beloit Snappers | Vermont Lake Monsters | AZL Athletics | DSL Athletics |
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2013 | Sacramento River Cats | Midland RockHounds | Stockton Ports | Beloit Snappers | Vermont Lake Monsters | AZL Athletics | DSL Athletics |
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2012 | Sacramento River Cats | Midland RockHounds | Stockton Ports | Burlington Bees | Vermont Lake Monsters | AZL Athletics | DSL Athletics |
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2011 | Sacramento River Cats | Midland RockHounds | Stockton Ports | Burlington Bees | Vermont Lake Monsters | AZL Athletics | DSL Athletics |
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2010 | Sacramento River Cats | Midland RockHounds | Stockton Ports | Kane County Cougars | Vancouver Canadians | AZL Athletics | DSL Athletics |
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2009 | Sacramento River Cats | Midland RockHounds | Stockton Ports | Kane County Cougars | Vancouver Canadians | AZL Athletics | DSL Athletics |
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2008 | Sacramento River Cats | Midland RockHounds | Stockton Ports | Kane County Cougars | Vancouver Canadians | AZL Athletics | DSL Athletics 1 & 2 |
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2007 | Sacramento River Cats | Midland RockHounds | Stockton Ports | Kane County Cougars | Vancouver Canadians | AZL Athletics | DSL Athletics 1 & 2 |
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2006 | Sacramento River Cats | Midland RockHounds | Stockton Ports | Kane County Cougars | Vancouver Canadians | AZL Athletics | DSL Athletics 1 & 2 |
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2005 | Sacramento River Cats | Midland RockHounds | Stockton Ports | Kane County Cougars | Vancouver Canadians | AZL Athletics | DSL Athletics 1 & 2 |
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2004 | Sacramento River Cats | Midland RockHounds | Modesto A's | Kane County Cougars | Vancouver Canadians | AZL Athletics | DSL Athletics 1 & 2 |
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2003 | Sacramento River Cats | Midland RockHounds | Modesto A's | Kane County Cougars | Vancouver Canadians | AZL Athletics | DSL Athletics 1 & 2 |
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2002 | Sacramento River Cats | Midland RockHounds | Modesto A's Visalia Oaks | — | Vancouver Canadians | AZL Athletics | DSL Athletics East & West |
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2001 | Sacramento River Cats | Midland RockHounds | Modesto A's Visalia Oaks | — | Vancouver Canadians | AZL Athletics | DSL Athletics East & West |
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2000 | Sacramento River Cats | Midland RockHounds | Modesto A's Visalia Oaks | — | Vancouver Canadians | AZL Athletics | DSL Athletics East & West |
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1999 | Vancouver Canadians | Midland RockHounds | Modesto A's Visalia Oaks | — | Southern Oregon Timberjacks | AZL Athletics | DSL Athletics East & West |
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1998 | Edmonton Trappers | Huntsville Stars | Modesto A's Visalia Oaks | — | Southern Oregon Timberjacks | AZL Athletics | DSL Athletics East & West |
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1997 | Edmonton Trappers | Huntsville Stars | Modesto A's Visalia Oaks | — | Southern Oregon Timberjacks | AZL Athletics | DSL Athletics East & West |
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1996 | Edmonton Trappers | Huntsville Stars | Modesto A's | West Michigan Whitecaps | Southern Oregon Timberjacks | AZL Athletics | DSL Athletics |
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1995 | Edmonton Trappers | Huntsville Stars | Modesto A's | West Michigan Whitecaps | Southern Oregon A's | AZL Athletics | DSL Athletics |
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1994 | Tacoma Tigers | Huntsville Stars | Modesto A's | West Michigan Whitecaps | Southern Oregon A's | AZL Athletics | DSL Athletics |
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1993 | Tacoma Tigers | Huntsville Stars | Modesto A's | Madison Muskies | Southern Oregon A's | AZL Athletics | DSL Athletics |
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1992 | Tacoma Tigers | Huntsville Stars | Modesto A's | Madison Muskies | Southern Oregon A's | AZL Athletics | DSL Athletics |
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1991 | Tacoma Tigers | Huntsville Stars | Modesto A's | Madison Muskies | Southern Oregon A's | AZL Athletics | DSL Athletics |
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1990 | Tacoma Tigers | Huntsville Stars | Modesto A's | Madison Muskies | Southern Oregon A's | AZL Athletics | DSL Athletics |
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1963–1989The 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 (Triple-A, Double-AA, Class 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 Class A Short Season in 1966.[3] Triple-A | Double-A | Class A | Class A Short Season | Rookie League |
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1989 | Tacoma Tigers | Huntsville Stars | Modesto A's Madison Muskies | Southern Oregon A's | AZL Athletics DSL Athletics |
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1988 | Tacoma Tigers | Huntsville Stars | Modesto A's Madison Muskies | Southern Oregon A's | AZL Athletics |
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1987 | Tacoma Tigers | Huntsville Stars | Modesto A's Madison Muskies | Medford A's | — |
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1986 | Tacoma Tigers | Huntsville Stars | Modesto A's Madison Muskies | Medford A's | — |
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1985 | Tacoma Tigers | Huntsville Stars | Modesto A's Madison Muskies | Medford A's | Pocatello Gems |
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1984 | Tacoma Tigers | Albany-Colonie A's | Modesto A's Madison Muskies | Medford A's | Idaho Falls A's |
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1983 | Tacoma Tigers | Albany A's | Modesto A's Madison Muskies | Medford A's | Idaho Falls A's |
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1982 | Tacoma Tigers | West Haven A's | Modesto A's Madison Muskies | Medford A's | Idaho Falls A's |
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1981 | Tacoma Tigers | West Haven A's | Modesto A's | Medford A's | — |
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1980 | Ogden A's | West Haven Whitecaps | Modesto A's | Medford A's | — |
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1979 | Ogden A's | Waterbury A's | Modesto A's | Medford A's | — |
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1978 | Vancouver Canadians | Jersey City A's | Modesto A's | Bend Timber Hawks | — |
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1977 | San Jose Missions | Chattanooga Lookouts | Modesto A's | — | Medicine Hat A's |
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1976 | Tucson Toros | Chattanooga Lookouts | Modesto A's | Boise A's | — |
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1975 | Tucson Toros | Birmingham A's | Modesto A's | Boise A's | — |
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1974 | Tucson Toros | Birmingham A's | Burlington Bees | Lewiston Broncs | — |
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1973 | Tucson Toros | Birmingham A's | Burlington Bees | Lewiston Broncs | — |
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1972 | Iowa Oaks | Birmingham A's | Burlington Bees | Coos Bay-North Bend A's | — |
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1971 | Iowa Oaks | Birmingham A's | Burlington Bees | Coos Bay-North Bend A's | — |
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1970 | Iowa Oaks | Birmingham A's | Burlington Bees | Coos Bay-North Bend A's | — |
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1969 | Iowa Oaks | Birmingham A's | Burlington Bees Lodi Crushers | Tri-City A's | — |
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1968 | Vancouver Mounties | Birmingham A's | Burlington Bees Leesburg Athletics Peninsula Grays | — | GCL Athletics |
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1967 | Vancouver Mounties | Birmingham A's | Burlington Bees Leesburg Athletics Peninsula Grays | — | GCL Athletics |
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1966 | Vancouver Mounties | Mobile A's | Burlington Bees Leesburg Athletics Modesto Reds | Lewiston Broncs | — |
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1965 | Vancouver Mounties | Birmingham Barons | Lewiston Broncs Burlington Bees Leesburg Athletics Shelby Rebels | — | — |
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1964 | Dallas Rangers | Birmingham Barons | Lewiston Broncs Daytona Beach Islanders Burlington Bees | — | Wytheville A's |
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1963 | Portland Beavers | Binghamton Triplets | Lewiston Broncs Daytona Beach Islanders Burlington Bees | — | — |
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1923–1962The minors operated with six classes (Triple-A, Double-A, and Classes A, B, C, and D) from 1946 to 1962. The Pacific Coast League (PCL) was reclassified from Triple-A 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 Class A to Double-A, 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.[3] Triple-A | Double-A | Class A | Class B | Class C | Class D |
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1962 | Portland Beavers | Albuquerque Dukes | Binghamton Triplets | Lewiston Broncs | Minot Mallards | Daytona Beach Islanders |
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1961 | Hawaii Islanders | Shreveport Sports | Portsmouth-Norfolk Tides | Lewiston Broncs | Visalia A's | Albuquerque Dukes Sarasota Sun Sox |
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1960 | Dallas-Fort Worth Rangers | Shreveport Sports | — | Sioux City Soos Lewiston Broncs | Visalia A's | Albuquerque Dukes Sanford Greyhounds |
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1959 | Portland Beavers | Shreveport Sports | Albany Senators | Sioux City Soos | Pocatello A's | Grand Island A's Plainview A's Olean A's |
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1958 | Buffalo Bisons | Little Rock Travelers | Albany Senators | Rochester/Winona A's | Pocatello A's | Grand Island A's Plainview A's Selma Cloverleafs |
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1957 | Buffalo Bisons | Little Rock Travelers | Columbia Gems | Abilene Blue Sox | Pocatello A's Crowley Millers | Seminole Oilers Grand Island A's Mattoon Athletics |
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1956 | Columbus Jets | — | Columbia Gems | Abilene Blue Sox | Pocatello Bannocks Crowley Millers | Seminole Oilers Fitzgerald A's Grand Island A's |
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1955 | Columbus Jets | — | Savannah Athletics | Lancaster Red Roses Hot Springs Bathers | Burlington A's | Welch Miners/Marion A's Seminole Oilers |
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1954 | Ottawa Athletics | — | Savannah Athletics | Lancaster Red Roses | Drummondville A's | Hopkinsville Hoppers Welch Miners |
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1953 | Ottawa Athletics | — | Savannah Indians Williamsport A's | Fayetteville Highlanders | St. Hyacinthe A's | Cordele A's Hopkinsville Hoppers Welch Miners |
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1952 | Ottawa Athletics | — | Savannah Indians Lincoln A's | Fayetteville A's Harrisburg Senators | St. Hyacinthe A's | Lexington Indians Cordele A's Corning A's |
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1951 | — | — | Savannah Indians Lincoln A's | Fayetteville A's Salisbury A's | Rome Colonels | Lexington Indians Cordele A's Corning A's |
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1950 | Buffalo Bisons | — | Savannah Indians Lincoln A's | Fayetteville A's Sunbury A's West Palm Beach Indians | Youngstown A's | Lexington A's Red Springs Red Robins Welch Miners Portsmouth A's Tarboro A's Cordele A's |
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1949 | — | — | Savannah Indians Lincoln A's | Martinsville A's | Kewanee A's Youngstown A's | Lexington A's Red Springs Red Robins Welch Miners Portsmouth A's Moultrie A's Tarboro A's |
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1948 | — | — | Savannah Indians Lincoln A's | — | Martinsville A's Moline/Kewanee A's | Lexington A's Federalsburg A's Red Springs Red Robins Welch Miners Portsmouth A's Moultrie A's |
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1947 | — | Birmingham Barons | Savannah Indians Lincoln A's | Lancaster Red Roses | Martinsville A's Moline A's Niagara Falls Frontiers | Lexington A's Federalsburg A's Nyack Rocklands Red Springs Red Robins Welch Miners |
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1946 | Toronto Maple Leafs | — | Savannah Indians | Lancaster Red Roses | Martinsville A's Kingston Ponies | Lexington A's Federalsburg A's |
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1945 | — | Toronto Maple Leafs | — | Lancaster Red Roses | Martinsville A's | Lexington A's |
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1944 | — | — | Elmira Pioneers | Lancaster Red Roses | — | — |
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1943 | — | — | Elmira Pioneers | Wilmington Blue Rocks | — | — |
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1942 | — | — | Williamsport Grays | Wilmington Blue Rocks | Newport News Builders | — |
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1941 | — | Toronto Maple Leafs | Williamsport Grays | Wilmington Blue Rocks | Newport News Pilots | Federalsburg A's |
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1940 | — | Toronto Maple Leafs | Williamsport Grays | Wilmington Blue Rocks | — | Federalsburg A's |
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1939 | — | — | Williamsport Grays | — | — | Federalsburg A's Lexington Indians Abbeville A's |
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1938 | — | — | Williamsport Grays | — | — | Federalsburg A's Lexington Indians |
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1937 | — | — | Williamsport Grays | — | — | Federalsburg A's |
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1936 | — | — | Williamsport Grays | Richmond Colts | Cleveland A's | — |
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1935 | — | — | Williamsport Grays | Richmond Colts | — | — |
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1934 | — | Montreal Royals | Williamsport Grays | — | — | — |
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1933 | — | Montreal Royals | Williamsport Grays | — | — | — |
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1932 | — | Portland Beavers | — | — | — | — |
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1924 | — | — | Shreveport Gassers | — | — | — |
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1923 | — | — | Shreveport Gassers | — | — | — |
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References1. ^{{cite web|url=http://mlb.mlb.com/mlb/news/prospects/index.jsp?c_id=oak|title=Athletics Affiliates|website=Oakland Athletics|publisher=Major League Baseball|accessdate=July 27, 2017}} 2. ^1 2 {{cite web|url=https://www.baseball-reference.com/register/affiliate.cgi?id=OAK|title=Oakland Athletics Minor League Affiliates|work=Baseball-Reference.com|accessdate=July 27, 2017}} 3. ^1 2 {{cite web|last=Cronin|first=John|url=http://sabr.org/research/truth-minor-league-class-structure-case-reclassification-minors|title=Truth in the Minor League Class Structure: The Case for the Reclassification of the Minors|website=The Baseball Research Journal|publisher=Society for American Baseball Research|date=Spring 2013|accessdate=July 27, 2017}} 4. ^{{cite web|url=https://athletics.mlblogs.com/as-announce-partnership-with-las-vegas-51s-4ba110d4ce08|title=A's Announce Partnership with Las Vegas 51s|date=September 17, 2018|publisher=Major League Baseball}} 5. ^{{Cite web|first=Reichard|last=Kevin|url=https://ballparkdigest.com/200905261902/minor-league-baseball/news/affiliate-dance-2012|title=Affiliate Dance|website=Ballpark Digest|date=September 25, 2018|access-date=September 25, 2018}} 6. ^{{Cite web|first=Zach|last=Speddon|url=https://ballparkdigest.com/2016/04/08/ports-extended-pdc-with-as/|title=Ports Extended PDC with A's|website=Ballpark Digest|date=April 8, 2016|access-date=September 6, 2018}} 7. ^{{Cite web|url=https://www.milb.com/beloit/news/snappers-and-athletics-extend-pdc-through-2020/c-295478030|title=Snappers And Athletics Extend PDC Through 2020|website=Beloit Snappers|publisher=Minor League Baseball|date=September 21, 2018|access-date=September 21, 2018}} 8. ^{{Cite web|url=https://ballparkdigest.com/2018/08/09/lake-monsters-as-extend-pdc-through-2020/|title=Lake Monsters, A's Extend PDC Through 2020|website=Ballpark Digest|date=August 9, 2018|access-date=September 6, 2018}} 9. ^{{Cite web|first=Kevin|last=Reichard|url=https://ballparkdigest.com/201409187733/minor-league-baseball/news/sounds-athletics-announce-four-year-pdc|title=Sounds, Athletics announce four-year PDC|website=Ballpark Digest|date=September 18, 2014|access-date=September 6, 2018}}
External links - Major League Baseball Prospect News: Oakland Athletics
- [https://www.baseball-reference.com/minors/affiliate.cgi?id=OAK Baseball-Reference: Oakland Athletics League Affiliations]
- [https://www.baseball-reference.com/bullpen/Oakland_Athletics_Minor_League_Affiliates BR Bullpen: Oakland Athletics Minor League Affiliates]
{{Oakland Athletics}}{{Minor league baseball affiliates by franchise}} 2 : Oakland Athletics minor league affiliates|Oakland Athletics lists |