<Tr> <Th> Website </Th> <Td> nwslsoccer.com </Td> </Tr> <Tr> <Td_colspan="2"> 2017 NWSL season </Td> </Tr> <P> The National Women's Soccer League (NWSL) is a professional women's soccer league, run by the United States Soccer Federation . At the top of the United States league system, it represents the sport's highest level in the United States . The NWSL was established in 2012 as a successor to Women's Professional Soccer (2007--2012) which was the successor to Women's United Soccer Association (2001--2003). The league began play in 2013 with eight teams; four of which were former members of Women's Professional Soccer . With the addition of two expansion teams in Houston and Orlando since the league's founding, it now has 10 teams based throughout the United States . </P> <P> Since the league's inaugural 2013 season, three clubs have been crowned NWSL Champions and three clubs have claimed the NWSL Shield . The most recent shield - winners are the North Carolina Courage, who relocated to Cary, North Carolina during the 2016--2017 offseason from New York, where they were known as the Western New York Flash . The current champions are Portland Thorns FC, who claimed their second championship in 2017 after being the inaugural champions in 2013 . </P>

Professional women's soccer league in the usa