Mudville Nine

Texas Rangers (2003–2004)
Cincinnati Reds (2002)
Milwaukee Brewers (1979–1983, 1985–1999)
Seattle Mariners (1978)
California Angels (1972)
Baltimore Orioles (1959–1971)
St. Louis Cardinals (1958)
Chicago Cubs (1953–1954)
St. Louis Browns (1952)

Mudville Nine (2000–2001)

The Stockton Ports are a minor league baseball team in . The Ports play in the North Division of the Class A – Advanced California League and are a minor league affiliate of the Oakland Athletics. Their home field is Banner Island Ballpark, which seats over 5,000 people and opened in 2005. The Ports' games are broadcast on KWSX (1280 AM).

Baseball first came to Stockton in the 1860s. At the time Stockton fielded a team in an earlier incarnation of the California League. In 1888 the Stockton team won the California League pennant with a record of 41–12. That same team also gained a bit of notoriety as a possible inspiration of "Casey at the Bat", a famous baseball poem by Ernest Thayer. Thayer was a journalist for the San Francisco Examiner at the time and the games were hosted in a ballpark on Banner Island, a place once known as Mudville.

The Stockton Flyers were established as a charter member of the California League in 1941. The league suspended operations in June 1942 due to World War II. The Flyers were rechristened as the Stockton Ports to recognize Stockton's status as an inland port city when the league resumed operations in 1946. That season, the Ports went on to win their first California League pennant.