CREATE TABLE table_7738 ("Tournament" TEXT, "2006" TEXT, "2007" TEXT, "2008" TEXT, "2009" TEXT, "2010" TEXT, "2011" TEXT, "2012" TEXT, "2013" TEXT)

What is the 2007 value of the US Open?
SELECT "2007" FROM table_7738 WHERE "Tournament" = 'us open'
SELECT "2007" FROM "table_7738" WHERE "Tournament" = 'us open'