USASA National Women's Open
The USASA National Women's Open is an American women's soccer tournament run by the United States Adult Soccer Association. It began in 1996, and from 2009-2012 it was known as the Women's Cup. Before the formation of the Women's Open, the Women's Amateur was the top national cup competition.
Historically, it has only been contested by amateur and semi-pro teams, as teams from professional leagues are not allowed to enter the competition. In 2012 though, the Chicago Red Stars, a professional club in the WPSL Elite, entered and won the competition. Similarly, the professional Houston Aces of WPSL won in 2013.
The defending Women's Cup champions are Olympic Club, who won the title over the ASA Chesapeake Charge after beating the Charge 2-0 in the final game day of the 2015 round robin group. Olympic Club also won the 2014 Women's Amateur.
Tournament Structure
2009–2012
In the regional phase of the competition, four to sixteen teams per region compete in a round-robin tournament, playing at least three games.The national finals feature the four regional winners in a two-round knockout tournament.
2013–present
Teams apply to take part in the national championships, which is contested as an initial round-robin group, followed by a championship game if there are more than four teams participating.Finalists
| Year | Winner | Score | Runner-up |
| 1996 Details | Dallas Lightning | 2-1 | Sacramento Storm |
| 1997 Details | Dallas Lightning | Sacramento Storm | |
| 1998 Details | Ajax America | 5-0 | Dallas Lightning |
| 1999 Details | Auto Trader San Diego | 14-0 | Patrick Real Wyckoff |
| 2000 Details | Ajax America | 2-1 | Detroit Rocker Hawks |
| 2001 Details | Detroit Rocker Hawks | 1-0 | SoCal Blues |
| 2002 Details | SoCal Blues | 5-0 | Peninsula Aztecs |
| 2003 Details | Ajax America | ||
| 2004 Details | Ajax America | 2-1 | Detroit Jaguars |
| 2005 Details | FC Indiana | 4-0 | DCS Titans |
| 2006 Details | Dallas Roma F.C. | Sockers F.C. Chicago | |
| 2007 Details | Ajax America | 2-1 | FC Indiana |
| 2008 Details | FC Indiana | ||
| 2009 Details | Chicago Eclipse Select | 3-1 | NYAC |
| 2010 Details | NYAC | 2-0 | Dallas Premier |
| 2011 Details | J.B. Marine S.C. | 2-1 | Sparta United WSC |
| 2012 Details | Chicago Red Stars | 3-2 | NYAC |
| 2013 Details | Houston Aces | Kansas City Dynamos | |
| 2014 Details | NYAC | 2-1 | ASA Chesapeake Charge |
| 2015 Details | Olympic Club | ASA Chesapeake Charge | |
| 2016 Details | Olympic Club | 2-0 | United FC |
; Notes
- Sources disagree on winner
- Losing finalist and semifinalists unknown
- All semifinalists known but results are not
- Event contested as round-robin group
| Team | Winners | Runners-up | Semifinalist / Top Four |
| Ajax America | 5 | - | 1 |
| NYAC | 2 | 2 | 1 |
| FC Indiana | 2 | 1 | - |
| Dallas Lightning | 2 | 1 | - |
| Olympic Club | 2 | - | - |
| SoCal Blues | 1 | 1 | - |
| Detroit Rocker Hawks | 1 | 1 | - |
| Houston Aces | 1 | - | 1 |
| Chicago Red Stars | 1 | - | - |
| J.B. Marine S.C. | 1 | - | - |
| Chicago Eclipse Select | 1 | - | - |
| Dallas Roma F.C. | 1 | - | - |
| Auto Trader San Diego | 1 | - | - |
| ASA Chesapeake Charge | - | 2 | 1 |
| Sacramento Storm | - | 2 | - |
| Salt Lake City Sparta | - | 1 | 1 |
| United FC | - | 1 | - |
| Kansas City Dynamos | - | 1 | - |
| Dallas Premier | - | 1 | - |
| DCS Titans | - | 1 | - |
| Detroit Jaguars | - | 1 | - |
| Peninsula Aztecs | - | 1 | - |
| Patrick Real Wyckoff | - | 1 | - |
| CO Sporting Fury | - | - | 1 |
| Mothershucker | - | - | 1 |
| Fredericksburg FC | - | - | 1 |
| Fire and Ice Soccer Club | - | - | 1 |
| Tampa Bay Hellenic | - | - | 1 |
| Des Moines Menace | - | - | 1 |
| Kansas City Shock | - | - | 1 |
| Turbo D'Feeters | - | - | 1 |
| Triad United Aces | - | - | 1 |
| Kentucky Wanderers | - | - | 1 |
| Houston Challengers | - | - | 1 |
| Phoenix Inferno | - | - | 1 |
| Philadelphia United German-Hungarians | - | - | 1 |
| Dallas Sting | - | - | 1 |