American soccer writing, history & data.
| League | Years |
|---|---|
| North American Soccer League Lineage | 1967-1985 |
| Lineage: North American Soccer League | Related leagues: United Soccer Association | |
| United Soccer Association | 1967-1967 |
| Lineage: North American Soccer League | |
| United Soccer League | 1984-1985 |
| United Soccer League | 2015-present |
| United Soccer Leagues First Division | 1997-2009 |
| United Soccer Leagues Second Division | 1995-2014 |
| United Soccer Leagues W-League | 1994-2015 |
| United States Soccer Federation Division-2 Professional League | 2010-2010 |
| United Systems of Independent Soccer Leagues I-League | 1986-1998 |
| United Systems of Independent Soccer Leagues Select League | 1996-1996 |
| United Women's Soccer | 2016-present |
| USL League Two | 1989-2017 |
| USL Pro | 2011-2014 |