Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The 2011 Women's Professional Soccer season is the third season for the WPS, the top level professional women's soccer league in the United States. The season started with the opening match on April 9, with the 2011 WPS Championship scheduled for the weekend of August 27-28. Women's Professional Soccer (WPS) is the top level professional women's soccer league in the United States. It began play on March 29, 2009. The league was composed of seven teams for its first two seasons and fielded 6 teams for the 2011 season, with continued plans for future expansion. The WPS is the highest level in the United States soccer pyramid for the women's game.