|No. of teams||20|
The Triple-A East is a 20-team Minor League Baseball league that began operating in the United States in 2021. Along with the Triple-A West, it is one of two leagues playing at the Triple-A level, which is one grade below Major League Baseball (MLB). The league was created in 2021 in conjunction with MLB's reorganization of the minor leagues. It is made up of the 14 teams formerly of the Triple-A International League, four teams from the Triple-A Pacific Coast League, one from the Double-A Southern League, and one from the independent American Association of Professional Baseball. The Triple-A East has teams in 14 states stretching from Papillion, Nebraska, to Worcester, Massachusetts, and from St. Paul, Minnesota, to Jacksonville, Florida.
Prior to the 2021 season, Major League Baseball assumed control of Minor League Baseball in a move to increase player salaries, modernize facility standards, and reduce travel through better geographical alignment. The two existing Triple-A leagues, the International League and Pacific Coast League, were disbanded and replaced with the Triple-A East and Triple-A West. Twenty teams were organized into the Triple-A East: the 14 teams of the International League, the four easternmost teams from the Pacific Coast League, one promoted from the Double-A Southern League, and one moving from the independent American Association of Professional Baseball.
Initially, the inaugural 2021 season was scheduled to begin on April 6, but Opening Day was postponed until May 4 to temporarily eliminate commercial air travel and give players the opportunity to be vaccinated against COVID-19 before the season began. The original 142-game schedule was shortened to 120 games with all contests before that date being cancelled. While leagues in other classifications will be holding championship playoffs following the conclusion of their seasons, the Triple-A East's champion will be the team with the best regular-season record. The 120-game regular season will be followed by the Triple-A Final Stretch, a 10-game tournament among all 30 Triple-A clubs, wherein the team with the best winning percentage over that stretch will receive a prize from Major League Baseball.
Teams will play limited opponents in 2021 due to travel restrictions in place due to the COVID-19 pandemic. Some teams will play only clubs in their own divisions, while others will also play some teams from other divisions. The 2022 schedule consists mostly of games between division opponents with additional non-division matchups also on the calendar.
The league is divided into three divisions: Midwest, Northeast, and Southeast. The Midwest and Southeast Divisions each consist of seven teams, while six teams makeup the Northeast Division. The 2021 season consists of 130 games scheduled per team divided into series of six games each from Tuesday to Sunday with league-wide off days every Monday. The final 10 games will be played in two 5-game series from Wednesday to Sunday. The 2021 schedule originally included a three-day All-Star break from July 12–14, but the break was removed after the rescheduling of Opening Day. There will be no postseason for championship playoffs or the Triple-A National Championship Game, and the league champions will be the team with the best record at the season's close.
The 2022 season consists of 144 games scheduled per team divided into series of mostly six games each from Tuesday to Sunday with league-wide off days every Monday. Exceptions include Monday games on Independence Day and Memorial Day. The 2022 schedule includes a four-day All-Star break from July 18–21, which coincides with the Major League Baseball All-Star Game.
|Division||Team||Founded||MLB Affiliation||Affiliated Since||City||Stadium||Capacity|
|Midwest||Columbus Clippers||1977||Cleveland Indians||2009||Columbus, Ohio||Huntington Park||10,100|
|Indianapolis Indians||1902||Pittsburgh Pirates||2005||Indianapolis, Indiana||Victory Field||13,750|
|Iowa Cubs||1969||Chicago Cubs||1981||Des Moines, Iowa||Principal Park||11,500|
|Louisville Bats||1982||Cincinnati Reds||2000||Louisville, Kentucky||Louisville Slugger Field||13,131|
|Omaha Storm Chasers||1969||Kansas City Royals||1969||Papillion, Nebraska||Werner Park||9,023|
|St. Paul Saints||1993||Minnesota Twins||2021||Saint Paul, Minnesota||CHS Field||7,210|
|Toledo Mud Hens||1965||Detroit Tigers||1987||Toledo, Ohio||Fifth Third Field||10,300|
|Northeast||Buffalo Bisons||1979||Toronto Blue Jays||2013||Buffalo, New York||Sahlen Field||16,600|
|Lehigh Valley IronPigs||2008||Philadelphia Phillies||2007||Allentown, Pennsylvania||Coca-Cola Park||10,100|
|Rochester Red Wings||1899||Washington Nationals||2021||Rochester, New York||Frontier Field||10,840|
|Scranton/Wilkes-Barre RailRiders||1989||New York Yankees||2007||Moosic, Pennsylvania||PNC Field||10,000|
|Syracuse Mets||1934||New York Mets||2019||Syracuse, New York||NBT Bank Stadium||10,815|
|Worcester Red Sox||2021||Boston Red Sox||2021||Worcester, Massachusetts||Polar Park||9,508|
|Southeast||Charlotte Knights||1976||Chicago White Sox||1999||Charlotte, North Carolina||Truist Field||10,200|
|Durham Bulls||1980||Tampa Bay Rays||1998||Durham, North Carolina||Durham Bulls Athletic Park||10,000|
|Gwinnett Stripers||2009||Atlanta Braves||1965||Lawrenceville, Georgia||Coolray Field||10,427|
|Jacksonville Jumbo Shrimp||1962||Miami Marlins||2021||Jacksonville, Florida||121 Financial Ballpark||11,000|
|Memphis Redbirds||1998||St. Louis Cardinals||1998||Memphis, Tennessee||AutoZone Park||10,000|
|Nashville Sounds||1978||Milwaukee Brewers||2021||Nashville, Tennessee||First Horizon Park||10,000|
|Norfolk Tides||1961||Baltimore Orioles||2007||Norfolk, Virginia||Harbor Park||11,856|
Fourteen current league teams were placed in the Triple-A East from the Triple-A International League.
One of the former International League teams, the Pawtucket Red Sox, had already planned to relocate prior to the 2021 season. They were also placed in the Triple-A East.
Four current league teams were placed in the Triple-A East from the Triple-A Pacific Coast League.
One current league team was placed in the Triple-A East from the Double-A Southern League.
One current league team was placed in the Triple-A East from the independent American Association of Professional Baseball.
The Triple-A East's first no-hitter occurred on May 9, 2021, the sixth day of its inaugural season, when four Iowa Cubs pitchers combined to no-hit the Indianapolis Indians, 2–0, at Principal Park in Des Moines, Iowa. The feat was accomplished by starting pitcher Shelby Miller, who was making a major league rehab appearance, and relievers Tommy Nance, Brad Wieck, and Ryan Meisinger. A trio of I-Cubs pitchers threw the league's second no-hitter in the first game of a seven-inning doubleheader against the St. Paul Saints on July 11. The league's third no-hitter was thrown ten days later on July 21, when three Scranton/Wilkes-Barre RailRiders pitchers combined to no-hit the Rochester Red Wings, 8–0, at PNC Field in Moosic, Pennsylvania. Nearly one month later on August 19, RailRiders pitcher Sean Boyle threw the league's fourth no-hitter in the second game of a seven-inning doubleheader against the Worcester Red Sox, 5–0, at Polar Park in Worcester, Massachusetts.
|1||May 9, 2021||Shelby Miller (3 IP)
Tommy Nance (3 IP)
Brad Wieck (2 IP)
Ryan Meisinger (1 IP)
|Iowa Cubs||2–0||3||Indianapolis Indians||Principal Park|||
|2||July 11, 2021||Justin Steele (3.2 IP)
Scott Effross (1.1 IP)
Dillon Maples (2 IP)
|Iowa Cubs||1–0 (7)||5||St. Paul Saints||Principal Park|||
|3||July 21, 2021||Luis Gil (6 IP)
Reggie McClain (2 IP)
Stephen Ridings (1 IP)
|Scranton/Wilkes-Barre RailRiders||8–0||2||Rochester Red Wings||PNC Field|||
|4||August 19, 2021||Sean Boyle (7 IP)||Scranton/Wilkes-Barre RailRiders||5–0 (7)||2||Worcester Red Sox||Polar Park|||