This is off topic for your site. However, I was not aware that there
was a women's equivalent to the USOC. I remember contacting the WUSA
and their answer led me to believe that there might not be a
competition. Maybe this is the amateur league championship, there
are not W-League teams in this list.

http://www.sover.net/~spectrum/usopen.html

1996 Dallas Lightning 2, Sacramento Storm 1
1997 Sacramento Storm 3, Dallas Lightning 2
1998 Los Angeles Ajax 5, Dallas Lightning 0
1999 San Diego Auto Trader 14, Patrick Real Wyckoff (NJ) 0
2000 Ajax Fram (Manhattan Beach, CA) 2, Detroit Rocker Hawks 1
2001 Detroit Rocker Hawks 1, Southern California Blues 0
2002 California Blues 5, Peninsula (NJ) Aztecs 0 (July 20)
2003 Ajax of Hermosa Beach, CA
2004 Ajax So Cal (WPSL) 2, Detroit Jaguars 1 (August 7)