American soccer writing, history & data.
| Season | Name | Abbreviation | Champion | Champion (Tier 2) | Champion (Tier 3) |
|---|---|---|---|---|---|
| 1984-1985 | American Indoor Soccer Association | AISA | Canton Invaders | - | - |
| 1985-1986 | American Indoor Soccer Association | AISA | Canton Invaders | - | - |
| 1986-1987 | American Indoor Soccer Association | AISA | Louisville Thunder | - | - |
| 1987-1988 | American Indoor Soccer Association | AISA | Canton Invaders | - | - |
| 1988-1989 | American Indoor Soccer Association | AISA | Canton Invaders | - | - |
| 1989-1990 | American Indoor Soccer Association | AISA | Canton Invaders | - | - |
| 1990-1991 | National Professional Soccer League | NPSL | Chicago Power | - | - |
| 1991-1992 | National Professional Soccer League | NPSL | Detroit Rockers | - | - |
| 1992-1993 | National Professional Soccer League | NPSL | Kansas City Attack | - | - |
| 1993-1994 | National Professional Soccer League | NPSL | Cleveland Crunch | - | - |
| 1994-1995 | National Professional Soccer League | NPSL | St. Louis Ambush | - | - |
| 1995-1996 | National Professional Soccer League | NPSL | Cleveland Crunch | - | - |
| 1996-1997 | National Professional Soccer League | NPSL | Kansas City Attack | - | - |
| 1997-1998 | National Professional Soccer League | NPSL | Milwaukee Wave | - | - |
| 1998-1999 | National Professional Soccer League | NPSL | Cleveland Crunch | - | - |
| 1999-2000 | National Professional Soccer League | NPSL | Milwaukee Wave | - | - |
| 2000-2001 | National Professional Soccer League | NPSL | Milwaukee Wave | - | - |