The Arizona Diamondbacks, sometimes referred to as the D-Backs, are a professional baseball team based in Phoenix, Arizona. They are members of the National League West Division of Major League Baseball. The team was founded in 1998, making them one of the youngest franchises in the league. The Diamondbacks have won one World Series championship, one National League championship, and five NL West Division championships.

The Diamondbacks' first season was in 1998, and they finished with a record of 65-97, finishing last in the NL West Division. The following season, they improved to a record of 100-62 and won the NL West Division. In 2001, the Diamondbacks won their first and only World Series championship, defeating the New York Yankees in seven games. In 2002, the Diamondbacks won the National League championship and made it to the World Series, but were defeated by the Anaheim Angels.

The Atlanta Braves are a professional baseball team based in the Atlanta metropolitan area that competes in Major League Baseball (MLB) as a member of the National League (NL) East division. The team was originally founded in Boston, Massachusetts in 1871 as the Boston Red Stockings. It went through several name changes before becoming known as the Boston Braves in 1912, a name it kept for most of the first half of the 20th century. In 1953, the team moved to Milwaukee, Wisconsin and became the Milwaukee Braves. In 1966, it moved again to Atlanta, Georgia, where it has been based ever since. The name "Braves" is derived from the term for a Native American warrior, and the team is often referred to as "the Bravos" or "America's Team" due to its games being broadcast nationally on TBS from the 1970s until 2007.

The Braves are one of the National League's two remaining charter franchises, and they claim to be "the oldest continuously operating professional sports franchise in America." From 1991 to 2005, the Braves were one of the most successful teams in baseball, winning 14 consecutive division titles and making eight consecutive National League Championship Series appearances. The team has won a total of 22 divisional titles, 18 National League pennants, and four World Series championships in its history, which includes victories in 1914 as the Boston Braves, in 1957 as the Milwaukee Braves, and in 1995 and 2021 as the Atlanta Braves.

The Braves are the only Major League Baseball franchise to have won the World Series in three different home cities. As of the end of the 2022 season, the Braves have a record of 10,921 wins and 10,818 losses, a winning percentage of .502.

The Baltimore Orioles are a professional baseball team that plays in the American League (AL) East division of Major League Baseball (MLB). The team was founded in 1901 as one of the eight charter teams in the American League, and originally played as the Milwaukee Brewers in Milwaukee, Wisconsin. In 1902, the team moved to St. Louis, Missouri and became known as the St. Louis Browns. In 1953, the team was purchased by a group of Baltimore business leaders led by Clarence Miles and Mayor Thomas D'Alesandro Jr. and moved to Baltimore, where they have played since. The Orioles' current owner is Peter Angelos.

The team's name was chosen in honor of Maryland's state bird, and they are sometimes referred to as the "O's" or the "Birds." The Orioles have a long history in Baltimore, including a previous franchise also called the Baltimore Orioles that played in the city and later moved to New York to become the Yankees

The Boston Red Sox are a professional baseball team that plays in the American League (AL) East division of Major League Baseball (MLB). The team was founded in 1901 and has played its home games at Fenway Park since 1912. The Red Sox have won nine World Series championships and have appeared in 13 World Series. They have a rivalry with the New York Yankees, which is considered one of the most intense in professional sports.

The Red Sox's most recent World Series win was in 2018, and they have won four World Series titles in the 21st century (2004, 2007, 2013, 2018). The team experienced a long championship drought, known as the "Curse of the Bambino," after the sale of star player Babe Ruth to the Yankees in 1920

The Chicago White Sox are a professional baseball team based in Chicago, Illinois. They compete in Major League Baseball (MLB) as a member of the American League (AL) Central division. The White Sox were established in 1900 as the Chicago White Stockings and shortened their name to the White Sox in 1904.

They have played their home games at Guaranteed Rate Field, previously known as Comiskey Park, since 1991. The team has won two World Series championships, in 1906 and 1917, but was also involved in the Black Sox Scandal in 1919, in which several players were accused of fixing games and banned from the league for life. The White Sox won the American League pennant in 1959 and 2005, and the 2005 team, led by manager Ozzie Guillén, went on to win the World Series.

The White Sox have a record of 9,411-9,309 (.503) and have won five league pennants. They are one of two MLB teams based in Chicago, with the other being the Chicago Cubs.

The Chicago Cubs are a professional baseball team based in Chicago, Illinois. They compete in Major League Baseball (MLB) as a member of the National League (NL) Central division. The Cubs play their home games at Wrigley Field, located on Chicago's North Side. They are one of two MLB teams based in Chicago, with the other being the Chicago White Sox, who play in the American League (AL) Central division.

The Cubs were founded as the White Stockings in 1876 and became the Chicago Cubs in 1903. They have played in a total of 11 World Series, winning back-to-back championships in 1907 and 1908 and their most recent championship in 2016, which ended a 108-year World Series drought, the longest in major sports in the United States and Canada. The Cubs have appeared in the postseason 11 times since divisional play began in 1969. They are known as the North Siders, in contrast to the White Sox, who are known as the South Siders.

The Cincinnati Reds are a professional baseball team based in Cincinnati, Ohio. They play in Major League Baseball (MLB) as a member of the National League (NL) Central division and were a founding member of the American Association in 1881 before joining the NL in 1890. The Reds won five World Series championships, nine NL pennants, one AA pennant, and 10 division titles.

They were known as the "Big Red Machine" in the 1970s, when they were considered one of the most dominant teams in baseball, winning the World Series in 1975 and 1976. The team has played its home games at Great American Ball Park since 2003, and Bob Castellini has been the CEO of the Reds since 2006. As of 2021, the Reds have an overall record of 10,713-10,501

The Cleveland Guardians are a professional baseball team based in Cleveland, Ohio. They compete in Major League Baseball (MLB) as a member of the American League (AL) Central division. The Guardians have played at Progressive Field since 1994, and have won 11 Central division titles, six American League pennants, and two World Series championships, in 1920 and 1948. The team has gone the longest time without winning a World Series of any current MLB team, with their last championship coming in 1948. The team's name references the Guardians of Traffic, sculptures located on the city's Hope Memorial Bridge, and their mascot is named "Slider". The Guardians hold spring training at Goodyear Ballpark in Goodyear, Arizona.

The franchise was originally founded as the Grand Rapids Rippers, a minor league team based in Grand Rapids, Michigan, in 1894, before relocating to Cleveland in 1900 and going by various names, including the Cleveland Napoleons, Cleveland Indians, and Cleveland Blues. The team was officially renamed the Guardians in 2022, after previously being known as the Indians for over a century. From August 24 to September 14, 2017, the Guardians won 22 consecutive games, the longest winning streak in American League history and the second longest in MLB history. As of the end of the 2022 season, the Guardians have an overall record of 9,684-9,214.

The Colorado Rockies are a professional baseball team based in Denver, Colorado. They compete in Major League Baseball (MLB) as a member of the National League (NL) West division. The Rockies play their home games at Coors Field, which is known for being a hitter-friendly park. The team is owned by the Monfort brothers and managed by Bud Black.

The Rockies began as an expansion team in 1993, playing their first two seasons at Mile High Stadium before moving to Coors Field in 1995. They have qualified for the postseason five times, each time as a Wild Card winner. In 2007, the Rockies won the NL pennant by winning 14 of their final 15 regular season games and a tiebreaker game against the San Diego Padres, then swept the Philadelphia Phillies and Arizona Diamondbacks in the NLDS and NLCS, before being swept by the Boston Red Sox in the World Series. From 1993 to 2022, the Rockies have an overall record of 2,201-2,495 (.469).

The Detroit Tigers are a professional baseball team based in Detroit, Michigan. They compete in Major League Baseball (MLB) as a member of the American League (AL) Central division. The Tigers were founded in 1894 as a member of the minor league Western League and are the oldest continuous one-name, one-city franchise in the AL. Since becoming a major league franchise in 1901, the Tigers have won four World Series championships, 11 AL pennants, and four AL Central division titles.

They have also won division titles in 1972, 1984, and 1987 as a member of the AL East. The Tigers have played their home games at Comerica Park in Downtown Detroit since 2000. From 1901 to 2022, the Tigers have an overall record of 9,512-9,407 (.504). Their best winning percentage was .656 in 1934, and their worst was .265 in 2003.

The Houston Astros are a professional baseball team based in Houston, Texas. They compete in Major League Baseball (MLB) as a member of the American League (AL) West division, having moved from the National League (NL) in 2013. The Astros were established as the Houston Colt .45s in 1962 and adopted their current name in 1965 when they moved into the Astrodome. They played in the NL West division from 1969 to 1993, and in the NL Central division from 1994 to 2012 before moving to the AL West. The Astros had their first winning record in 1972 and made the playoffs for the first time in 1980. They won four division titles in the 1980s and two Wild Card appearances in the late 1990s and early 2000s. In 2017, they won their first World Series championship against the Los Angeles Dodgers.

The Astros have won over 100 games in four seasons, appeared in a record six consecutive American League Championship Series, and won four of the last six American League pennants. They are the only team to win a postseason series in six straight seasons. However, the team has been involved in a sign-stealing scandal that took place during the 2017 and 2018 seasons, leading to the suspension of manager A.J. Hinch and general manager Jeff Luhnow, and causing the team to be disliked by many. From 1962 to 2022, the Astros have an all-time record of 4,831-4,820 (.501).

The Kansas City Royals are a professional baseball team based in Kansas City, Missouri. They compete in Major League Baseball as a member of the American League Central division. The team was founded in 1969 and has played in four World Series, winning in 1985 and 2015 and losing in 1980 and 2014. The team has struggled in recent years, missing the playoffs 34 out of 36 seasons prior to 2014. The team is named after the American Royal, a livestock show and rodeo held annually in Kansas City, as well as two former Negro league baseball teams that used the same name. The team plays at Kauffman Stadium and has a win-loss record of 4,001-4,344 (.479) through 2021.

The Los Angeles Angels are a professional baseball team based in the Los Angeles area. They play in Major League Baseball as a member of the American League West division. The Angels were founded in Los Angeles in 1961 and played there until 1966, when they moved to Anaheim. They were known as the California Angels from 1965 to 1996 and the Anaheim Angels from 1997 to 2004, before becoming the Los Angeles Angels of Anaheim from 2005 to 2015. Since 2015, they have been known simply as the Los Angeles Angels. The team has played at Angel Stadium in Anaheim since 1966. The Angels won the World Series in 2002, but have had eight straight seasons since 2014 where they failed to reach the playoffs, including seven consecutive losing seasons from 2016 to present. Star players Mike Trout and Shohei Ohtani have combined to win the Major League Baseball Most Valuable Player Award four times.

The Los Angeles Dodgers are a professional baseball team based in Los Angeles, California, that plays in Major League Baseball (MLB) as a member of the National League (NL) West division. The team was founded in 1883 in Brooklyn, New York and was known by several different names before becoming the Dodgers in 1932. The team is known for its fierce rivalry with the New York Yankees and for breaking the color barrier in 1947 with the debut of Jackie Robinson, the first African-American to play in the MLB since 1884.

The Dodgers have won seven World Series championships and a record 24 NL pennants, and have had numerous MVP, Cy Young, and Rookie of the Year award winners. The team has also had a long period of success, including winning the 2020 World Series after a 32-year drought and making 12 postseason appearances in a 17-year span. The Dodgers are a popular and successful team, and maintain rivalries with the San Francisco Giants and the Houston Astros. As of 2022, they are valued at $4.075 billion according to Forbes.

The Miami Marlins are a professional baseball team based in Miami, Florida, and play in Major League Baseball (MLB) as a member of the National League (NL) East division. They play their home games at LoanDepot Park. The team was founded as an expansion team in 1993 as the Florida Marlins, and originally played their home games at Joe Robbie Stadium. In 2012, the team moved to their current home of LoanDepot Park and changed their name to the Miami Marlins. Despite only qualifying for the postseason three times, the Marlins won the World Series in 1997 and 2003. All three of their playoff appearances were as wild card teams, making them the first team to win the World Series as a wild card and one of two MLB franchises (along with the Colorado Rockies) to have never won a division title. They are also the only franchise to have never appeared in back-to-back postseasons.

The Milwaukee Brewers are a professional baseball team based in Milwaukee, Wisconsin, that plays in Major League Baseball (MLB) as a member of the National League (NL) Central division. They play their home games at American Family Field, which was previously named Miller Park. The team was founded in 1969 as the Seattle Pilots in Seattle, Washington, but relocated to Milwaukee after one season and became the Brewers. They are the only MLB franchise to play in four different divisions since the creation of divisional play in 1969 and one of two current MLB franchises to switch leagues (the other being the Houston Astros). The Brewers have made one World Series appearance, in 1982, but have not yet won a championship. They have had several playoff appearances, including winning the 2011 National League Division Series (NLDS) but losing in the National League Championship Series (NLCS), and sweeping the Colorado Rockies in the NLDS but losing to the Los Angeles Dodgers in the NLCS in 2018. From 1969 to 2022, the team's overall win-loss record is 4,123-4,391 (.484).

The Minnesota Twins are a professional baseball team based in Minneapolis, Minnesota, that plays in Major League Baseball (MLB) as a member of the American League (AL) Central division. The team was originally founded in 1901 as the Washington Senators in Washington, D.C., but moved to Minnesota and was renamed the Minnesota Twins for the start of the 1961 season. They have played their home games at Metropolitan Stadium, the Hubert H. Humphrey Metrodome, and since 2010, at Target Field. The team has won the World Series three times, in 1924 as the Senators and in 1987 and 1991 as the Twins. From 1901 to 2021, the team's overall regular season win-loss-tie record is 9,012-9,716-109 (.481) as the Senators/Twins, and as the Twins (through 2021) it is 4,789-4,852-8 (.497).

The New York Yankees are a professional baseball team based in the Bronx, New York City, that plays in Major League Baseball (MLB) as a member of the American League (AL) East division. The team was founded in 1903 as the New York Highlanders and was later renamed the Yankees in 1913. They are owned by Yankee Global Enterprises and are managed by Brian Cashman and Aaron Boone.

The Yankees have played their home games at the original Yankee Stadium from 1923 to 1973 and from 1976 to 2008, and have played at the new Yankee Stadium since 2009. They are known for their success and popularity, as well as their rivalry with the Boston Red Sox. The Yankees have won 19 AL East Division titles, 40 AL pennants, and 27 World Series championships, which are all MLB records.

Many iconic players and managers have been inducted into the National Baseball Hall of Fame, including Babe Ruth, Lou Gehrig, Joe DiMaggio, Mickey Mantle, Yogi Berra, and Whitey Ford, among others. The team is valued at approximately $6 billion and is widely popular, with a dedicated fanbase and a significant international presence. From 1903 to 2022, the Yankees have had a win-loss record of 10,602-8,000 (.570).

The New York Mets are a professional baseball team based in Queens, New York City, that plays in Major League Baseball (MLB) as a member of the National League (NL) East division. They are one of two major league clubs based in New York City, with the other being the American League's New York Yankees. The team was founded in 1962 as an expansion team to replace the Brooklyn Dodgers and the New York Giants, who had both left New York.

The Mets played their home games at the Polo Grounds in Manhattan for their first two seasons before moving to Shea Stadium in Queens, where they played until 2008. Since 2009, they have played at Citi Field. The team has had a mix of success and struggles, with their best season being the "Miracle Mets" year in 1969 when they won the World Series, considered one of the biggest upsets in World Series history.

They have made ten playoff appearances, winning the World Series twice (1969 and 1986) and five National League pennants (most recently in 2000 and 2015). The team is currently owned by billionaire hedge fund manager Steve Cohen and is valued at $2.650 billion according to Forbes. As of the end of the 2022 regular season, the team's overall win-loss record is 4,652-4,988 (.483).

The Oakland Athletics (often referred to as the A's) are a professional baseball team based in Oakland, California. They compete in Major League Baseball (MLB) as a member of the American League (AL) West division. The team was founded in Philadelphia in 1901 as the Philadelphia Athletics and have won nine World Series championships, including three consecutive titles in 1972, 1973, and 1974. The team left Philadelphia for Kansas City in 1955, where they were known as the Kansas City Athletics, before moving to Oakland in 1968.

They have a long history of success, featuring Hall of Fame players such as Chief Bender, Frank "Home Run" Baker, Jimmie Foxx, and Lefty Grove, as well as the "Bash Brothers," Jose Canseco and Mark McGwire, and Hall of Famers Dennis Eckersley, Rickey Henderson, and manager Tony La Russa. In 2002, the Athletics set the record for most consecutive wins in a single season with twenty, an event that was a pioneering step in the application of sabermetrics in baseball. As of 2021, the Athletics' overall win-loss record was 9,150-9,552 (.489).

The Philadelphia Phillies are a professional baseball team based in Philadelphia, Pennsylvania. They compete in Major League Baseball (MLB) as a member of the National League (NL) East division. The team was founded in 1883 and has won two World Series championships (in 1980 and 2008), eight National League pennants, and made 15 playoff appearances. The Phillies have played at various stadiums in Philadelphia, including Citizens Bank Park, their current home stadium.

Despite a history of futility, the team has also had success, winning 11 division titles and becoming one of only nine teams to have won over 10,000 games in their history. Hall of Famer Mike Schmidt is widely considered the franchise's greatest player. The Phillies have Triple-A, Double-A, and Class-A affiliates and hold spring training in Clearwater, Florida.

The Pittsburgh Pirates are a professional baseball team based in Pittsburgh, Pennsylvania. They compete in Major League Baseball as a member of the National League Central division. The team was founded in 1881 as the Pittsburgh Allegheny and joined the National League in 1887.

They have won five World Series championships, nine National League pennants, and nine National League East division titles. Despite a period of success in the early 1990s, the Pirates struggled in the following decades, with a streak of 20 consecutive losing seasons from 1993 to 2012, the longest such streak in American professional sports history.

The team returned to the postseason in 2013 and have made appearances in 2014 and 2015. From 1882 to 2021, the Pirates have an overall record of 10,625-10,547 (.502 winning percentage). The team is often referred to as the "Bucs" or the "Buccos" and has played its home games at PNC Park since 2001. The team's colors are black, gold, and white, matching the other professional sports teams in Pittsburgh.

The San Diego Padres are a professional baseball team based in San Diego, California. They play in the National League West division of Major League Baseball (MLB). The team was founded in 1969 and has made it to the World Series twice, but has not won a championship. The Padres have had 16 winning seasons in their history and have an overall record of 3,863-4,495 (.462) as of 2021. They are the only major professional sports team in the San Diego sports market following the relocation of the Chargers to Los Angeles in 2017.

The San Francisco Giants are a professional baseball team based in San Francisco, California. They compete in Major League Baseball (MLB) as a member of the National League (NL) West division. The Giants were founded in 1883 and are one of the most successful teams in professional baseball, with a history of winning more games than any other team in the major American sports. The team has played in the World Series 20 times and won eight championships, the second-most in the NL and fifth-most of any team.

The Giants are known for their rivalry with the Los Angeles Dodgers and have a long-standing history in the sport, with many of their players, including Christy Mathewson, Carl Hubbell, Mel Ott, and Willie Mays, being inducted into the Baseball Hall of Fame. The team has had three successful runs in the early 2010s, winning the World Series in 2010, 2012, and 2014. The Giants' all-time record is 11,382-9,854 (.536) as of 2022, and their current manager is Gabe Kapler.

The Seattle Mariners are a professional baseball team based in Seattle, Washington. They are a member of the American League (AL) West division in Major League Baseball (MLB). The Mariners joined the AL as an expansion team in 1977 and have played their home games at T-Mobile Park since 1999. The team's name and colors are inspired by the city's marine culture, and their mascot is the Mariner Moose. The Mariners experienced success for the first time in 1991 and won their first division championship in 1995.

They set the American League record for most wins in a single season with 116 in 2001, tied with the 1906 Chicago Cubs for the Major League record. As of 2022, the Mariners have not appeared in the World Series and hold the longest active World Series appearance drought in MLB. The team has had a losing record in 30 of 46 seasons and has an all-time win-loss record of 3,402-3,783 (.473).

The St. Louis Cardinals are a professional baseball team based in St. Louis, Missouri. They are a member of the National League (NL) Central division in Major League Baseball (MLB). The Cardinals have played their home games at Busch Stadium since 2006. They are one of the oldest and most successful teams in MLB, having won 11 World Series championships and 19 National League pennants. The team has also won 15 division titles in the East and Central divisions.

The Cardinals are known for their strong fan support and have consistently been among the top teams in MLB in local television ratings. The team has won 20 league MVP awards, four batting Triple Crowns, and three Cy Young Awards.

Notable players inducted into the Baseball Hall of Fame include Lou Brock, Dizzy Dean, Bob Gibson, Whitey Herzog, Rogers Hornsby, Stan Musial, and Ozzie Smith. The Cardinals' all-time win-loss record is 11,131-10,232 (.521).

The Tampa Bay Rays are a professional baseball team based in St. Petersburg, Florida. They are a member of the American League (AL) East division in Major League Baseball (MLB). The team began play as the Tampa Bay Devil Rays in 1998 and changed their name to the Rays in 2007. They have played their home games at Tropicana Field since their inception.

The team struggled in their first decade of play, finishing in last place in the AL East in all but one season. However, they have had more success in recent years, including their first winning season, AL East championship, and American League pennant in 2008, as well as their second American League pennant in 2020. The Rays' chief rivals are the Boston Red Sox and the New York Yankees, and they also have an in-state interleague rivalry with the Miami Marlins. The team's all-time record is 1,912-2,034 (.485).

The Texas Rangers are a professional baseball team based in the Dallas-Fort Worth area of Texas. They are a member of the American League (AL) West division in Major League Baseball (MLB). The Rangers were established in 1961 as the Washington Senators and moved to Arlington, Texas in 1971, where they have played since as the Rangers. The team has made eight appearances in the MLB postseason, winning division championships in 1996, 1998, 1999, 2010, 2011, 2015, and 2016, and qualifying as a wild card team in 2012. The Rangers have won two American League pennants, in 2010 and 2011, but have not won a World Series championship. The team's all-time regular season record is 4,650-5,146 (.475).

The Toronto Blue Jays are a professional baseball team based in Toronto, Canada. They are a member of the American League (AL) East division in Major League Baseball (MLB). The Blue Jays play their home games at Rogers Centre, which they have done since 1989. The team's name is inspired by the blue jay bird, and blue is also the color of Toronto's other professional sports teams, such as the Maple Leafs (ice hockey) and the Argonauts (Canadian football). The Blue Jays were founded in 1977 and were an expansion team. They struggled in their early years and frequently finished last in their division.

However, they had their first winning season in 1983 and became division champions two years later. From 1985 to 1993, the Blue Jays were a dominant force in the AL East, winning five division championships in nine seasons and becoming back-to-back World Series champions in 1992 and 1993. After 1993, the Blue Jays did not make the playoffs for 21 consecutive seasons until they returned in 2015 and 2016. They also made the playoffs in 2020 and 2022.

The Blue Jays are the only MLB team based outside the United States and are one of only two MLB franchises that are undefeated through multiple World Series appearances, along with the Miami Marlins. The Blue Jays are owned by Rogers Communications, and their overall win-loss record from 1977 to 2022 is 3,598-3,627 (.498).

The Washington Nationals are a professional baseball team based in Washington, D.C.. They are a member of the National League (NL) East division in Major League Baseball (MLB). The Nationals played at RFK Stadium from 2005 to 2007 and moved to Nationals Park in 2008. The team was originally founded in 1969 as the Montreal Expos, but was relocated to Washington, D.C. in 2005 as the first MLB franchise relocation since the Washington Senators moved to Texas in 1971.

The Nationals struggled in their early years in Washington, but had success in the 2010s, including winning the National League East division in 2012, 2014, 2016, and 2017 and their first World Series championship in 2019. As of 2021, the Nationals' overall win-loss record is 4,068-4,280 (.487) and their record since moving to Washington, D.C. is 1,313-1,337 (.495).