What teams have upcoming affiliation deals, and which ones are tied long-term to their parent teams? We list them all here as the 2021 affiliate dance reaches its conclusion.
With the expiration of the most recent Professional Baseball Agreement (PBA) between Major League Baseball and Minor League Baseball, MLB has assumed control of MiLB and contracting MiLB from 160 teams to 120 teams. The MiLB league structures are new and renamed:
LOW A
Low-A West
Low-A Southwest
Low-A East
HIGH A
High-A Central
High-A West
High-A East
DOUBLE A
Double-A Central
Double-A Northeast
Double-A South
TRIPLE A
Triple-A East
Triple-A West
Bold = affiliation deal has been announced
Class AAA | Current Team | Future Team? | Status |
Albuquerque | Rockies | Rockies | Confirmed |
Buffalo | Blue Jays | Blue Jays | Confirmed |
Charlotte | White Sox | White Sox | Confirmed |
Columbus | Indians | Indians | Confirmed |
Durham | Rays | Rays | Confirmed |
El Paso | Padres | Padres | Confirmed |
Fresno | Nationals | Rockies | Confirmed; will move to Cal League |
Gwinnett | Braves | Braves | Owned by Braves |
Indianapolis | Pirates | Pirates | Confirmed |
Iowa | Cubs | Cubs | Confirmed |
Las Vegas | Athletics | Athletics | Confirmed |
Lehigh Valley | Phillies | Phillies | Confirmed |
Louisville | Reds | Reds | Confirmed |
Memphis | Cardinals | Cardinals | Confirmed; partly owned by Cardinals |
Nashville | Rangers | Brewers | Confirmed |
Norfolk | Orioles | Orioles | Confirmed |
Oklahoma City | Dodgers | Dodgers | Confirmed; partly owned by Dodgers owners |
Omaha | Royals | Royals | Confirmed |
Reno | D-Backs | D-Backs | Confirmed |
Rochester | Twins | Washington | New deal in place |
Round Rock | Astros | Rangers | Confirmed |
Sacramento | Giants | Giants | Confirmed |
Salt Lake | Angels | Angels | Confirmed |
St. Paul | N/A | Twins | Confirmed; Saints move from indy American Association to become top Twins farm team |
San Antonio | Brewers | Padres | Confirmed; moving to Double-A Texas League |
S/W-B | Yankees | Yankees | Partly owned by parent Yankees |
Sugar Land | N/A | Astros | Confirmed; Skeeters jump to Triple-A from Atlantic League |
Syracuse | Mets | Mets | Confirmed; owned by New York Mets |
Tacoma | Mariners | Mariners | Confirmed |
Toledo | Tigers | Tigers | Confirmed |
Wichita | Marlins | Twins | Confirmed; moving to Double-A Texas League |
Worcester | Red Sox | Red Sox | Confirmed |
Class AA | |||
Akron | Indians | Indians | Confirmed |
Altoona | Pirates | Pirates | Confirmed |
Amarillo | Padres | D-Backs | Confirmed |
Arkansas | Mariners | Mariners | Confirmed |
Biloxi | Brewers | Brewers | Confirmed |
Binghamton | Mets | Mets | Will continue to be Mets farm team |
Birmingham | White Sox | White Sox | Confirmed |
Bowie | Orioles | Orioles | Confirmed |
Chattanooga | Reds | Reds | Confirmed |
Corpus Christi | Astros | Astros | Confirmed; owned by Astros |
Erie | Tigers | Tigers | Confirmed |
Frisco | Rangers | Rangers | Confirmed |
Harrisburg | Nationals | Nationals | Confirmed |
Hartford | Rockies | Rockies | Confirmed |
Jackson | D-Backs | Out of affiliated ball | |
Jacksonville | Marlins | Marlins | Confirmed; moving to Triple-A as Marlins affiliate |
Midland | Athletics | Athletics | Confirmed |
Mississippi | Braves | Braves | Owned by Braves |
Montgomery | Rays | Rays | Confirmed |
New Hampshire | Blue Jays | Blue Jays | Confirmed |
NW Arkansas | Royals | Royals | Confirmed |
Pensacola | Twins | Marlins | Confirmed |
Portland | Red Sox | Red Sox | Confirmed |
Reading | Phillies | Phillies | Confirmed; Phillies are partial owner |
Richmond | Giants | Giants | Confirmed |
Rocket City | Angels | Angels | Confirmed |
Somerset | None | Yankees | Somerset replaces Trenton in Double-A |
Springfield | Cardinals | Cardinals | Confirmed |
Tennessee | Cubs | Cubs | Confirmed |
Trenton | Yankees | None | MLB Draft League |
Tulsa | Dodgers | Dodgers | Confirmed |
High A | |||
Bradenton | Pirates | Pirates | Confirmed; Owned by Pirates; FSL shifting to Low A |
Carolina | Brewers | Brewers | Owned by Brewers; shifting to Low A |
Charlotte | Rays | Out of affiliated ball; team shut down | |
Clearwater | Phillies | Phillies | Confirmed; owned by Phillies; FSL shifting to Low A |
Daytona | Reds | Reds | Confirmed; FSL shifting to Low A |
Down East | Rangers | Rangers | Confirmed; owned by Rangers; shifting to Low A |
Dunedin | Blue Jays | Blue Jays | Confirmed; owned by Blue Jays; FSL shifting to Low A |
Fayetteville | Astros | Astros | Confirmed; owned by Astros |
Florida | Braves | Out of affiliated ball; team shut down | |
Frederick | Orioles | MLB Draft League | |
Fredericksburg | Nationals | Nationals | Confirmed; team will drop to Low A |
Fort Myers | Twins | Twins | Confirmed; FSL shifting to Low A |
Hudson Valley | Rays | Yankees | Shifting to High-A from NY-Penn League |
Inland Empire | Angels | Angels | Confirmed; Cal League moving to Low A |
Jupiter | Marlins | Marlins | Confirmed; owned by Marlins; FSL shifting to Low A |
Lake Elsinore | Padres | Padres | Confirmed; Cal League moving to Low A |
Lakeland | Tigers | Tigers | Confirmed; FSL shifting to Low A |
Lancaster | Rockies | Out of affiliated ball | |
Lynchburg | Indians | Indians | Confirmed |
Modesto | Mariners | Mariners | Confirmed. Majority owned by Mariners; Cal League moving to Low A |
Myrtle Beach | Cubs | Cubs | Confirmed; team will shift to Low A |
Palm Beach | Cardinals | Cardinals | Confirmed; owned by Cardinals; FSL shifting to Low A |
Rancho Cucamonga | Dodgers | Dodgers | Confirmed; Cal League moving to Low A |
St. Lucie | Mets | Mets | Owned by Mets; FSL shifting to Low A |
Salem | Red Sox | Red Sox | Confirmed; owned by Red Sox; will shift to Low A |
San Jose | Giants | Giants | Confirmed; partially owned by Giants; Cal League moving to Low A |
Stockton | A’s | A’s | Confirmed; Cal League moving to Low A |
Tampa | Yankees | Yankees | Owned by Yankees; shifting to Low A |
Visalia | D-Backs | D-Backs | Confirmed; Cal League moving to Low A |
Wilmington | Royals | Nationals | Confirmed |
Winston-Salem | White Sox | White Sox | Confirmed; partly owned by White Sox |
Low A | |||
Asheville | Rockies | Astros | Confirmed |
Augusta | Giants | Braves | Confirmed |
Beloit | Athletics | Marlins | Confirmed; Midwest League moving to High A |
Bowling Green | Rays | Rays | Confirmed; moving to new league and High A |
Burlington | Angels | Out of affiliated ball; joined summer-collegiate Prospect League | |
Cedar Rapids | Twins | Twins | Confirmed; Midwest League moving to High A |
Charleston | Yankees | Rays | Confirmed |
Clinton | Marlins | Out of affiliated ball; joined summer-collegiate Prospect League | |
Columbia | Mets | Royals | Confirmed |
Dayton | Reds | Reds | Confirmed; signed in perpetuity; Midwest League moving to High A |
Delmarva | Orioles | Orioles | Confirmed |
Fort Wayne | Padres | Padres | Confirmed; Midwest League moving to High A |
Great Lakes | Dodgers | Dodgers | Confirmed; Midwest League moving to High A |
Greensboro | Pirates | Pirates | Confirmed |
Greenville | Red Sox | Red Sox | Confirmed; Drive will move to High A |
Hagerstown | Nationals | Out of affiliated ball | |
Hickory | Rangers | Rangers | Confirmed; owned by Rangers; will shift to High A |
Jersey Shore | Phillies | Phillies | Confirmed; shifting to High A as a Phillies affiliate |
Kane County | D-Backs | Out of affiliated ball; joined independent American Association | |
Kannapolis | White Sox | White Sox | Confirmed |
Lake County | Indians | Indians | Confirmed; Midwest League moving to High A |
Lansing | Blue Jays | Oakland | Confirmed; Midwest League moving to High A |
Lexington | Royals | Out of affiliated ball; joined independent Atlantic League | |
Peoria | Cardinals | Cardinals | Confirmed; Midwest League moving to High A |
Quad Cities | Astros | Royals | Confirmed; Midwest League moving to High A |
Rome | Braves | Braves | Owned by Braves; will move to High A |
South Bend | Cubs | Cubs | Confirmed; Midwest League moving to High A |
West Michigan | Tigers | Tigers | Confirmed; Midwest League moving to High A |
West Virginia | Mariners | Out of affiliated ball; joined independent Atlantic League | |
Wisconsin | Brewers | Brewers | Confirmed; Midwest League moving to High A |
Short Season (to be phased out) | |||
Aberdeen | Orioles | Orioles | Confirmed; moving to Mid-Atlantic High A league |
Auburn | Nats | Out of affiliated ball | |
Batavia | Marlins | Out of affiliated ball; moving to summer-collegiate Perfect Game League | |
Boise | Rockies | None | Part of new independent Pioneer League |
Brooklyn | Mets | Mets | Confirmed; Moving to High A |
Connecticut | Tigers | Still to be determined | |
Eugene | Cubs | Giants | Confirmed; Northwest League moving to High A |
Everett | Mariners | Mariners | Confirmed; Northwest League moving to High A |
Hillsboro | D-Backs | D-Backs | Confirmed; Northwest League moving to High A |
Lowell | Red Sox | Look for shift to full-season ball in 2022 | |
Mahoning Valley | Indians | MLB Draft League | |
Salem-Keizer | Giants | Part of new Mavericks Independent Baseball League | |
Spokane | Rangers | Rockies | Confirmed |
State College | Cardinals | MLB Draft League | |
Staten Island | Yankees | None | New Atlantic League team discussed; existing SI Yankees team folded |
Tri-City Dust Devils | Padres | Angels | Confirmed; Northwest League moving to High A |
Tri-City ValleyCats | Astros | Joining Frontier League | |
Vancouver | Blue Jays | Blue Jays | Confirmed; Northwest League moving to High A |
Vermont | A’s | Team sold and moving to summer-collegiate Futures League | |
West Virginia | Pirates | MLB Draft League | |
Williamsport | Phillies | MLB Draft League | |
Rookie (to be phased out) | |||
Billings | Reds | None | Part of new independent Pioneer League |
Bluefield | Blue Jays | None | Shifting to summer-collegiate ball; will be rebranded |
Bristol | Pirates | None | Shifting to summer-collegiate ball; will be rebranded |
Burlington | Royals | None | Shifting to summer-collegiate ball; will be rebranded |
Colorado Springs | Brewers | None | Part of new independent Pioneer League |
Danville | Braves | None | Shifting to summer-collegiate ball; will be rebranded |
Elizabethton | Twins | None | Shifting to summer-collegiate ball; will be rebranded |
Grand Junction | Rockies | None | Part of new independent Pioneer League |
Great Falls | White Sox | None | Part of new independent Pioneer League |
Greeneville | Reds | None | Shifting to summer-collegiate ball; will be rebranded |
Idaho Falls | Royals | None | Part of new independent Pioneer League |
Johnson City | Cards | None | Shifting to summer-collegiate ball; will be rebranded |
Kingsport | Mets | None | Shifting to summer-collegiate ball; will be rebranded |
Missoula | D-Backs | None | Part of new independent Pioneer League |
Northern Colorado | Angels | None | Part of new independent Pioneer League; will sit out 2021 season |
Ogden | Dodgers | None | Part of new independent Pioneer League |
Princeton | Rays | None | Shifting to summer-collegiate ball; will be rebranded |
Pulaski | Yankees | None | Shifting to summer-collegiate ball; will be rebranded |
Bold = affiliation deal has been announced
Class AAA | Current Team | Future Team? | Status |
Albuquerque | Rockies | Rockies | Confirmed |
Buffalo | Blue Jays | Blue Jays | Confirmed |
Charlotte | White Sox | White Sox | Confirmed |
Columbus | Indians | Indians | Confirmed |
Durham | Rays | Rays | Confirmed |
El Paso | Padres | Padres | Confirmed |
Fresno | Nationals | Rockies | Confirmed; will move to Cal League |
Gwinnett | Braves | Braves | Owned by Braves |
Indianapolis | Pirates | Pirates | Confirmed |
Iowa | Cubs | Cubs | Confirmed |
Las Vegas | Athletics | Athletics | Confirmed |
Lehigh Valley | Phillies | Phillies | Confirmed |
Louisville | Reds | Reds | Confirmed |
Memphis | Cardinals | Cardinals | Confirmed; partly owned by Cardinals |
Nashville | Rangers | Brewers | Confirmed |
Norfolk | Orioles | Orioles | Confirmed |
Oklahoma City | Dodgers | Dodgers | Confirmed; partly owned by Dodgers owners |
Omaha | Royals | Royals | Confirmed |
Reno | D-Backs | D-Backs | Confirmed |
Rochester | Twins | Washington | New deal in place |
Round Rock | Astros | Rangers | Confirmed |
Sacramento | Giants | Giants | Confirmed |
Salt Lake | Angels | Angels | Confirmed |
St. Paul | N/A | Twins | Confirmed; Saints move from indy American Association to become top Twins farm team |
San Antonio | Brewers | Padres | Confirmed; moving to Double-A Texas League |
S/W-B | Yankees | Yankees | Partly owned by parent Yankees |
Sugar Land | N/A | Astros | Confirmed; Skeeters jump to Triple-A from Atlantic League |
Syracuse | Mets | Mets | Confirmed; owned by New York Mets |
Tacoma | Mariners | Mariners | Confirmed |
Toledo | Tigers | Tigers | Confirmed |
Wichita | Marlins | Twins | Confirmed; moving to Double-A Texas League |
Worcester | Red Sox | Red Sox | Confirmed |
Class AA | |||
Akron | Indians | Indians | Confirmed |
Altoona | Pirates | Pirates | Confirmed |
Amarillo | Padres | D-Backs | Confirmed |
Arkansas | Mariners | Mariners | Confirmed |
Biloxi | Brewers | Brewers | Confirmed |
Binghamton | Mets | Mets | Will continue to be Mets farm team |
Birmingham | White Sox | White Sox | Confirmed |
Bowie | Orioles | Orioles | Confirmed |
Chattanooga | Reds | Reds | Confirmed |
Corpus Christi | Astros | Astros | Confirmed; owned by Astros |
Erie | Tigers | Tigers | Confirmed |
Frisco | Rangers | Rangers | Confirmed |
Harrisburg | Nationals | Nationals | Confirmed |
Hartford | Rockies | Rockies | Confirmed |
Jackson | D-Backs | Out of affiliated ball | |
Jacksonville | Marlins | Marlins | Confirmed; moving to Triple-A as Marlins affiliate |
Midland | Athletics | Athletics | Confirmed |
Mississippi | Braves | Braves | Owned by Braves |
Montgomery | Rays | Rays | Confirmed |
New Hampshire | Blue Jays | Blue Jays | Confirmed |
NW Arkansas | Royals | Royals | Confirmed |
Pensacola | Twins | Marlins | Confirmed |
Portland | Red Sox | Red Sox | Confirmed |
Reading | Phillies | Phillies | Confirmed; Phillies are partial owner |
Richmond | Giants | Giants | Confirmed |
Rocket City | Angels | Angels | Confirmed |
Somerset | None | Yankees | Somerset replaces Trenton in Double-A |
Springfield | Cardinals | Cardinals | Confirmed |
Tennessee | Cubs | Cubs | Confirmed |
Trenton | Yankees | None | MLB Draft League |
Tulsa | Dodgers | Dodgers | Confirmed |
High A | |||
Bradenton | Pirates | Pirates | Confirmed; Owned by Pirates; FSL shifting to Low A |
Carolina | Brewers | Brewers | Owned by Brewers; shifting to Low A |
Charlotte | Rays | Out of affiliated ball; team shut down | |
Clearwater | Phillies | Phillies | Confirmed; owned by Phillies; FSL shifting to Low A |
Daytona | Reds | Reds | Confirmed; FSL shifting to Low A |
Down East | Rangers | Rangers | Confirmed; owned by Rangers; shifting to Low A |
Dunedin | Blue Jays | Blue Jays | Confirmed; owned by Blue Jays; FSL shifting to Low A |
Fayetteville | Astros | Astros | Confirmed; owned by Astros |
Florida | Braves | Out of affiliated ball; team shut down | |
Frederick | Orioles | MLB Draft League | |
Fredericksburg | Nationals | Nationals | Confirmed; team will drop to Low A |
Fort Myers | Twins | Twins | Confirmed; FSL shifting to Low A |
Hudson Valley | Rays | Yankees | Shifting to High-A from NY-Penn League |
Inland Empire | Angels | Angels | Confirmed; Cal League moving to Low A |
Jupiter | Marlins | Marlins | Confirmed; owned by Marlins; FSL shifting to Low A |
Lake Elsinore | Padres | Padres | Confirmed; Cal League moving to Low A |
Lakeland | Tigers | Tigers | Confirmed; FSL shifting to Low A |
Lancaster | Rockies | Out of affiliated ball | |
Lynchburg | Indians | Indians | Confirmed |
Modesto | Mariners | Mariners | Confirmed. Majority owned by Mariners; Cal League moving to Low A |
Myrtle Beach | Cubs | Cubs | Confirmed; team will shift to Low A |
Palm Beach | Cardinals | Cardinals | Confirmed; owned by Cardinals; FSL shifting to Low A |
Rancho Cucamonga | Dodgers | Dodgers | Confirmed; Cal League moving to Low A |
St. Lucie | Mets | Mets | Owned by Mets; FSL shifting to Low A |
Salem | Red Sox | Red Sox | Confirmed; owned by Red Sox; will shift to Low A |
San Jose | Giants | Giants | Confirmed; partially owned by Giants; Cal League moving to Low A |
Stockton | A’s | A’s | Confirmed; Cal League moving to Low A |
Tampa | Yankees | Yankees | Owned by Yankees; shifting to Low A |
Visalia | D-Backs | D-Backs | Confirmed; Cal League moving to Low A |
Wilmington | Royals | Nationals | Confirmed |
Winston-Salem | White Sox | White Sox | Confirmed; partly owned by White Sox |
Low A | |||
Asheville | Rockies | Astros | Confirmed |
Augusta | Giants | Braves | Confirmed |
Beloit | Athletics | Marlins | Confirmed; Midwest League moving to High A |
Bowling Green | Rays | Rays | Confirmed; moving to new league and High A |
Burlington | Angels | Out of affiliated ball; joined summer-collegiate Prospect League | |
Cedar Rapids | Twins | Twins | Confirmed; Midwest League moving to High A |
Charleston | Yankees | Rays | Confirmed |
Clinton | Marlins | Out of affiliated ball; joined summer-collegiate Prospect League | |
Columbia | Mets | Royals | Confirmed |
Dayton | Reds | Reds | Confirmed; signed in perpetuity; Midwest League moving to High A |
Delmarva | Orioles | Orioles | Confirmed |
Fort Wayne | Padres | Padres | Confirmed; Midwest League moving to High A |
Great Lakes | Dodgers | Dodgers | Confirmed; Midwest League moving to High A |
Greensboro | Pirates | Pirates | Confirmed |
Greenville | Red Sox | Red Sox | Confirmed; Drive will move to High A |
Hagerstown | Nationals | Out of affiliated ball | |
Hickory | Rangers | Rangers | Confirmed; owned by Rangers; will shift to High A |
Jersey Shore | Phillies | Phillies | Confirmed; shifting to High A as a Phillies affiliate |
Kane County | D-Backs | Out of affiliated ball; joined independent American Association | |
Kannapolis | White Sox | White Sox | Confirmed |
Lake County | Indians | Indians | Confirmed; Midwest League moving to High A |
Lansing | Blue Jays | Oakland | Confirmed; Midwest League moving to High A |
Lexington | Royals | Out of affiliated ball; joined independent Atlantic League | |
Peoria | Cardinals | Cardinals | Confirmed; Midwest League moving to High A |
Quad Cities | Astros | Royals | Confirmed; Midwest League moving to High A |
Rome | Braves | Braves | Owned by Braves; will move to High A |
South Bend | Cubs | Cubs | Confirmed; Midwest League moving to High A |
West Michigan | Tigers | Tigers | Confirmed; Midwest League moving to High A |
West Virginia | Mariners | Out of affiliated ball | |
Wisconsin | Brewers | Brewers | Confirmed; Midwest League moving to High A |
Short Season (to be phased out) | |||
Aberdeen | Orioles | Orioles | Confirmed; moving to Mid-Atlantic High A league |
Auburn | Nats | Out of affiliated ball | |
Batavia | Marlins | Out of affiliated ball; moving to summer-collegiate Perfect Game League | |
Boise | Rockies | None | Part of new independent Pioneer League |
Brooklyn | Mets | Mets | Confirmed; Moving to High A |
Connecticut | Tigers | May end up in indy league | |
Eugene | Cubs | Giants | Confirmed; Northwest League moving to High A |
Everett | Mariners | Mariners | Confirmed; Northwest League moving to High A |
Hillsboro | D-Backs | D-Backs | Confirmed; Northwest League moving to High A |
Lowell | Red Sox | Look for shift to full-season ball in 2022 | |
Mahoning Valley | Indians | MLB Draft League | |
Salem-Keizer | Giants | Part of new Mavericks Independent Baseball League | |
Spokane | Rangers | Rockies | Confirmed |
State College | Cardinals | MLB Draft League | |
Staten Island | Yankees | None | New Atlantic League team discussed; existing SI Yankees team folded |
Tri-City Dust Devils | Padres | Angels | Confirmed; Northwest League moving to High A |
Tri-City ValleyCats | Astros | Joining Frontier League | |
Vancouver | Blue Jays | Blue Jays | Confirmed; Northwest League moving to High A |
Vermont | A’s | Indy Frontier League? | |
West Virginia | Pirates | MLB Draft League | |
Williamsport | Phillies | MLB Draft League | |
Rookie (to be phased out) | |||
Billings | Reds | None | Part of new independent Pioneer League |
Bluefield | Blue Jays | None | Shifting to summer-collegiate ball; will be rebranded |
Bristol | Pirates | None | Shifting to summer-collegiate ball; will be rebranded |
Burlington | Royals | None | Shifting to summer-collegiate ball; will be rebranded |
Colorado Springs | Brewers | None | Part of new independent Pioneer League |
Danville | Braves | None | Shifting to summer-collegiate ball; will be rebranded |
Elizabethton | Twins | None | Shifting to summer-collegiate ball; will be rebranded |
Grand Junction | Rockies | None | Part of new independent Pioneer League |
Great Falls | White Sox | None | Part of new independent Pioneer League |
Greeneville | Reds | None | Shifting to summer-collegiate ball; will be rebranded |
Idaho Falls | Royals | None | Part of new independent Pioneer League |
Johnson City | Cards | None | Shifting to summer-collegiate ball; will be rebranded |
Kingsport | Mets | None | Shifting to summer-collegiate ball; will be rebranded |
Missoula | D-Backs | None | Part of new independent Pioneer League |
Northern Colorado | Angels | None | Part of new independent Pioneer League; will sit out 2021 season |
Ogden | Dodgers | None | Part of new independent Pioneer League |
Princeton | Rays | None | Shifting to summer-collegiate ball; will be rebranded |
Pulaski | Yankees | None | Shifting to summer-collegiate ball; will be rebranded |