Clubs · 1901
5 clubs
| Club | League | Based in | Home ground |
|---|---|---|---|
| Boston Red Sox | Major League Baseball | Boston | Huntington Avenue Grounds, Fenway Park |
| Cienciano | Peruvian Primera División | — | Estadio Garcilaso |
| Minnesota Twins | Major League Baseball | — | Target Field, American League Park, Metropolitan Stadium, Hubert H. Humphrey Metrodome, Boundary Field, Griffith Stadium |
| Philadelphia Athletics | — | — | — |
| Washington Senators | American League | — | Griffith Stadium |