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National Professional Soccer League
National Professional Soccer League (1984–2001)
Sport Indoor soccer
Founded 1984
No. of teams high of 15
Country(ies)  United States and  Canada
Ceased 2001
Last champion(s) Milwaukee Wave

The National Professional Soccer League was a professional indoor soccer league in the USA. It started out as the American Indoor Soccer Association in 1984 but changed its name to the National Professional Soccer League in 1990. During the summer of 2001, the league disbanded and the six surviving teams formed the Major Indoor Soccer League, which would later absorb three teams from the World Indoor Soccer League.

Beginning in 1989, the NPSL had a unique scoring system, almost identical to basketball, where goals were worth 1, 2, or 3 points depending upon distance or game situation. Basically, all non-power play goals scored from inside a 45 foot arc were worth 2 points while non-powerplay goals from outside the arc were worth 3 points. Any powerplay goal was worth 1 point as was any goal scored during a penalty shootout.




1984-85 Canton Invaders Louisville Thunder 3-1
1985-86 Canton Invaders Louisville Thunder 3-0
1986-87 Louisville Thunder Canton Invaders 3-2
1987-88 Canton Invaders Ft. Wayne Flames (Challenge Cup)
1988-89 Canton Invaders Chicago Power 3-2
1989-90 Canton Invaders Dayton Dynamo 3-1
1990-91 Chicago Power Dayton Dynamo 3-0
1991-92 Detroit Rockers Canton Invaders 3-2
1992-93 Kansas City Attack Cleveland Crunch 3-2
1993-94 Cleveland Crunch St. Louis Ambush 3-1
1994-95 St. Louis Ambush Harrisburg Heat 4-0
1995-96 Cleveland Crunch Kansas City Attack 4-2
1996-97 Kansas City Attack Cleveland Crunch 4-0
1997-98 Milwaukee Wave St. Louis Ambush 4-1
1998-99 Cleveland Crunch St. Louis Ambush 3-2
1999-00 Milwaukee Wave Cleveland Crunch 3-2
2000-01 Milwaukee Wave Philadelphia KiXX 3-0

Championships won

Canton Invaders 5 84-85, 85-86, 87-88, 88-89, 89-90
Cleveland Crunch 3 93-94, 95-96, 98-99
Milwaukee Wave 3 97-98, 99-00, 00-01
Kansas City Attack 2 92-93, 96-97
Chicago Power 1 90-91
Detroit Rockers 1 91-92
St. Louis Ambush 1 94-95


  • Steve M. Paxos 1988–2000
  • Steve Ryan 2000–01


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