Listed below are each of the active sports leagues in Minor League Baseball, with linked articles containing rosters for each active team in the league.

As with nearly all North American professional team sports, there are limits to the roster sizes of minor-league teams, which vary by classification level. Major League Baseball-affiliated teams are limited in how many players they may place on their active rosters, except for some "rookie" leagues. At lower classification levels, there are restrictions on how much prior professional experience players on the roster may have.

While a team's active roster consists of players eligible to compete for the team in games, a team's reserve roster consists of players on the injured list, those who are restricted or suspended, or who are otherwise temporarily inactive.[1] Major league players on rehabilitation assignments do not count against active roster limits.[2]

As of the 2021 season, the following limits are used:

Level Active roster size[3]:10–11 Player restrictions[3]:100
Triple-A 28 players no restrictions
Double-A 28 players no restrictions
High-A 30 players No more than 2 players and 1 player-coach with
6 or more years of minor-league experience
Low-A 30 players No more than 2 players with
5 or more years of minor-league experience
no limit No more than 3 players with
4 or more years of minor-league experience
35 players No players with
4 or more years of minor-league experience


See also: Triple-A

Triple-A East

See also: Triple-A East

Triple-A West

See also: Triple-A West


See also: Double-A

Double-A Central

See also: Double-A Central

Double-A Northeast

See also: Double-A Northeast

Double-A South

See also: Double-A South


See also: High-A

High-A Central

See also: High-A Central

High-A East

See also: High-A East

High-A West

See also: High-A West


See also: Low-A

Low-A East

See also: Low-A East

Low-A Southeast

See also: Low-A Southeast

Low-A West

See also: Low-A West


See also: Rookie

Arizona League

See also: Arizona League

Dominican Summer League

See also: Dominican Summer League

Gulf Coast League

See also: Gulf Coast League

Offseason leagues

Arizona Fall League

See also: Arizona Fall League

See also


  1. ^ "FAQs: The Business of MiLB". Minor League Baseball. Retrieved July 25, 2017.
  2. ^ "Transaction Terminology". Nashville Sounds. Minor League Baseball. Retrieved July 25, 2017.
  3. ^ a b The Official Professional Baseball Rules Book (PDF). New York City: Office of the Commissioner of Baseball. 2021. Retrieved May 1, 2021 – via CS1 maint: discouraged parameter (link)