<prompt> Gadzira shanduro yakaoma zvikuru yemutsara uyu 2013 United States Open Championship yaiva 113th edition yeU.S. Open.  <response>: Zvechokwadi, shanduro yakaoma zvikuru yemutsara ndeyekuti The 2013 United States Open Championship ndiyo 113th U.S. Open, yakaitwa June 13 - 16 paEast Course yeMerion Golf Club muArdmore, Pennsylvania, kumadokero kwePhiladelphia. 