The Athletics (often referred to as the A's) are an American professional baseball team based in West Sacramento, California. The Athletics compete in Major League Baseball (MLB) as a member club of the American League (AL) West Division. The team will play its home games at Sutter Health Park in West Sacramento for the 2025–2027 seasons before its planned relocation to the Las Vegas metropolitan area. While in West Sacramento, the team is being referred to as simply the "Athletics" and "A's", with no city name attached. The franchise's nine World Series championships, fifteen pennants, and seventeen division titles are the second most in the AL after the New York Yankees. One of the AL's eight charter franchises, the team was founded in Philadelphia in 1901 as the Philadelphia Athletics. They won three World Series championships in 1910, 1911, and 1913, and back-to-back titles in 1929 and 1930. The team's owner and manager for its first 50 years was Connie Mack, and Hall of Fame players included Chief Bender, Frank "Home Run" Baker, Jimmie Foxx, and Lefty Grove. The team left Philadelphia for Kansas City, Missouri, in 1955 and became the Kansas City Athletics, before moving to Oakland, California, in 1968 and becoming the Oakland Athletics. The Athletics played their home games at the Oakland Coliseum from 1968 until 2024. Nicknamed the "Swingin' A's", under owner Charlie O. Finley they won three consecutive World Series in 1972, 1973, and 1974, led by players including Vida Blue, Catfish Hunter, Reggie Jackson, and Rollie Fingers. After being sold by Finley to Walter A. Haas Jr., the team won three consecutive pennants and the 1989 World Series behind the "Bash Brothers", Jose Canseco and Mark McGwire, as well as Hall of Famers Dennis Eckersley, Rickey Henderson and manager Tony La Russa. In 2002, the Athletics set a then American League record for most consecutive wins in a season with twenty, an event that would go on to be the pioneering step in the application of sabermetrics in baseball. The streak record was later broken in 2017 by the Cleveland Indians. From 1901 through the end of 2024, the franchise's overall win–loss record is 9,329–9,859–87 (.486).

Sutter Health Park

The Milwaukee Brewers are an American professional baseball team based in Milwaukee. They compete in Major League Baseball (MLB) as a member club of the National League (NL) Central division. The Brewers are named for the city's association with the brewing industry. Since 2001, they have played their home games at American Family Field, which was named Miller Park through the 2020 season and has a seating capacity of 41,900 people. The team was founded in 1969 as the Seattle Pilots, an expansion team of the American League (AL), in Seattle, Washington. The Pilots played their home games at Sick's Stadium. After only one season, the team relocated to Milwaukee, becoming known as the Brewers and playing their home games at Milwaukee County Stadium. In 1998, the Brewers joined the National League. They are the only franchise to play in four different divisions since the advent of divisional play in Major League Baseball in 1969. They are also one of two current MLB franchises to switch leagues in the modern era (1900–present), the other being the Houston Astros. The Brewers' only World Series appearance came in 1982, and they are one of only six current MLB teams that have never won the World Series. After winning the 1982 American League Championship Series (ALCS) against the California Angels, the Brewers faced off against the St. Louis Cardinals in the World Series, losing 4–3. In 2011, the Brewers defeated the Arizona Diamondbacks to win the 2011 National League Division Series (NLDS), 3–2, but lost in the National League Championship Series (NLCS) to the eventual World Series champion Cardinals, 4–2. In 2018, the Brewers swept the Colorado Rockies in the NLDS, 3–0, but lost the NLCS to the Los Angeles Dodgers, 4–3. From 1969 through 2022, the Brewers' overall win–loss record is 4,123–4,391 (.484).