CREATE TABLE table_220 ("Race Name" TEXT, "Circuit" TEXT, "Date" TEXT, "Winning driver" TEXT, "Constructor" TEXT, "Report" TEXT)

Which races did Paul Greifzu win?
SELECT "Race Name" FROM table_220 WHERE "Winning driver" = 'Paul Greifzu'
SELECT "Race Name" FROM "table_220" WHERE "Winning driver" = 'Paul Greifzu'