American soccer writing, history & data.
| Season | Name | Champion |
|---|---|---|
| 1967 | United Soccer Association | Los Angeles Wolves |
| 1967 | National Professional Soccer League | Oakland Clippers |
| 1968 | North American Soccer League | Atlanta Chiefs |
| 1969 | North American Soccer League | Kansas City Spurs |
| 1970 | North American Soccer League | Rochester Lancers |
| 1971 | North American Soccer League | Dallas Tornado |
| 1972 | North American Soccer League | New York Cosmos |
| 1973 | North American Soccer League | Philadelphia Atoms |
| 1974 | North American Soccer League | Los Angeles Aztecs |
| 1975 | North American Soccer League | Tampa Bay Rowdies |
| 1976 | North American Soccer League | Toronto Metros-Croatia |
| 1977 | North American Soccer League | New York Cosmos |
| 1978 | North American Soccer League | New York Cosmos |
| 1979 | North American Soccer League | Vancouver Whitecaps |
| 1979/80 | North American Soccer League Indoor League | Tampa Bay Rowdies |
| 1980 | North American Soccer League | New York Cosmos |
| 1980/81 | North American Soccer League Indoor League | Edmonton Drillers |
| 1981 | North American Soccer League | Chicago Sting |
| 1981/82 | North American Soccer League Indoor League | San Diego Sockers |
| 1982 | North American Soccer League | New York Cosmos |
| 1983 | North American Soccer League | Tulsa Roughnecks |
| 1983/84 | North American Soccer League Indoor League | San Diego Sockers |
| 1984 | North American Soccer League | Chicago Sting |
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