American soccer writing, history & data.
| Season | Name | Abbreviation | Champion | Champion (Tier 2) | Champion (Tier 3) | 1996 | Major League Soccer | MLS | D.C. United | --- | --- | 1997 | Major League Soccer | MLS | D.C. United | --- | --- | 1998 | Major League Soccer | MLS | Chicago Fire SC | --- | --- | 1999 | Major League Soccer | MLS | D.C. United | --- | --- |
|---|
| Organizing body | |
|---|---|
| Major League Professional Soccer, Inc. | June 24, 1993 – date unknown |
| Major League Soccer, L.L.C. | July 24, 1995 – date unknown |