American soccer writing, history & data.
| Season | Name | Abbreviation | Champion | Champion (Tier 2) | Champion (Tier 3) |
|---|---|---|---|---|---|
| 1984/85 | American Indoor Soccer Association | AISA | Canton Invaders | --- | --- |
| 1985/86 | American Indoor Soccer Association | AISA | Canton Invaders | --- | --- |
| 1986/87 | American Indoor Soccer Association | AISA | Louisville Thunder | --- | --- |
| 1987/88 | American Indoor Soccer Association | AISA | Canton Invaders | --- | --- |
| 1988/89 | American Indoor Soccer Association | AISA | Canton Invaders | --- | --- |
| 1989/90 | American Indoor Soccer Association | AISA | Canton Invaders | --- | --- |
| 1990/91 | National Professional Soccer League | NPSL | Chicago Power | --- | --- |
| 1991/92 | National Professional Soccer League | NPSL | Detroit Rockers | --- | --- |
| 1992/93 | National Professional Soccer League | NPSL | Kansas City Attack | --- | --- |
| 1993/94 | National Professional Soccer League | NPSL | Cleveland Crunch | --- | --- |
| 1994/95 | National Professional Soccer League | NPSL | St. Louis Ambush | --- | --- |
| 1995/96 | National Professional Soccer League | NPSL | Cleveland Crunch | --- | --- |
| 1996/97 | National Professional Soccer League | NPSL | Kansas City Attack | --- | --- |
| 1997/98 | National Professional Soccer League | NPSL | Milwaukee Wave | --- | --- |
| 1998/99 | National Professional Soccer League | NPSL | Cleveland Crunch | --- | --- |
| 1999/00 | National Professional Soccer League | NPSL | Milwaukee Wave | --- | --- |
| 2000/01 | National Professional Soccer League | NPSL | Milwaukee Wave | --- | --- |