CREATE TABLE table_20412 ("No." FLOAT, "Date" TEXT, "Tournament" TEXT, "Winning score" TEXT, "To par" TEXT, "Margin of victory" TEXT, "Runner ( s ) -up" TEXT)

Name th margin of victory when date is 10 jul 2011
SELECT "Margin of victory" FROM table_20412 WHERE "Date" = '10 Jul 2011'
SELECT "Margin of victory" FROM "table_20412" WHERE "Date" = '10 Jul 2011'