Team Logo. The Boston Red Sox are a team in Major League Baseball. They play in the American League. Their home field, Fenway Park, is currently the oldest ball park still in use. They won the first World Series in 1903. Retrieved from "https://prosportsteams.fandom.com/wiki/Boston_Red_Sox?oldid=16397" Categories: Major League Baseball teams American League teams AL East teams Teams in Massachusetts Teams in Boston Community content is available under CC-BY-SA unless otherwise noted.