1971: Pittsburgh Steelers (NFL) and Pittsburgh Pirates (MLB)
1976: Pittsburgh Steelers (NFL) and Pittsburgh Pirates (MLB)
1999: Dallas Cowboys (NFL) and Dallas Stars (NHL)
2001: Gambling (NFL) and Colorado Avalanche (NHL)
2002: Usually are Lakers (NBA) and Anaheim Angels (MLB)
2004: New England Patriots (NFL) and Boston Red Sox (MLB) Students of sports history, however, be aware that these four trophies have not always represented "the" major leagues. You can get the defunct competing major leagues such as pre-merger American Football League also know as the World Hockey Association to look at. Also, the NBA has not been always the key league in basketball, and various other leagues have a very good claim to being "the" major league for basketball at various times. Finally, our nation at a minimum find the champions of this Canadian Football League almost everything lots of NHL teams from that country.Broadening the meaning like that adds relatively few cities to the list. Twice while in the late 20's three of four major league champions were from The big apple: the Giants, Yankees and Brooklyn Celtics in 1927, and then the Yankees, Rangers and Brooklyn Celtics in 1928. The Brooklyn Celtics took part in the American Basketball League, at a stretch as soon as the NBA just didn't yet exist.Other two-champion cities considering these competing and defunct major leagues are:
1930: Montreal Canadiens (NHL) and Montreal AAA (CFL)
1932: Toronto Maple Leafs (NHL) and Toronto Argonauts (CFL)
1942: Toronto Maple Leafs (NFL) and Toronto RCAF Hurricanes (CFL)
1944: Montreal Canadiens (NHL) and Toronto HMCS Donnacona
1947: Chicago Cardinals (NFL) and Chicago American Gears (NBL)
1947: Toronto Maple Leafs (NHL) and Toronto Argonauts (CFL)
1948: Cleveland Indians (MLB) and Cleveland Browns (AAFC)
1977: Montreal Canadiens(MHL) and Montreal Alouettes (CFL)
1987: Edmonton Oilers (NHL) and Edmonton Eskimos (CFL)
Notes:
The Toronto RCAF Hurricanes and Montreal HMCS Donnacona were football teams from various armed forces bases which competed towards the Grey Cup during WWII.
The Chicago American Gears were while in the National Basketball League. The NBL merged when using the Basketball Association of America (BAA) in 1949 to produce the present day NBA.
The Cleveland Browns started their history in the All-America Football Conference. The AAFC competed along with the NFL for 4 years. In 1949 the AAFC partially merged in the NFL, the Cleveland Browns won the NFL championship our next year. So while no city has completed what generally is a "GrandSlam" of major league team sports, New york city (twice) and New york (once) came close.
