Levels
The tiers of American league soccer — 22 leagues placed on one, top flight first. Cups and international competitions have no level and don't appear here.
Level 1
Level 2
- American Professional Soccer League
- American Soccer League (1933-1983)
- Eastern Soccer League (1928-1929)
- International Soccer League (1926)
- National Association Foot Ball League
- National Professional Soccer League
- North American Soccer Football League
- North American Soccer League (2011-)
- Southern New England Soccer League
- United Soccer League (1984-1985)
- USL First Division
- USSF Division 2 Professional League