CREATE TABLE table_77721 ("Date" CLOB, "Tournament" CLOB, "Winning score" CLOB, "Margin of victory" CLOB, "Runner ( s ) -up" CLOB)

Which Tournament has a Margin of victory of 7 strokes
SELECT "Tournament" FROM table_77721 WHERE "Margin of victory" = '7 strokes'
SELECT "Tournament" FROM "table_77721" WHERE "Margin of victory" = '7 strokes'