CREATE TABLE table_25927 ("SF Round" FLOAT, "Country" TEXT, "Location" TEXT, "Date" TEXT, "Driver" TEXT, "Race 1 ( pts ) " FLOAT, "Race 2 ( pts ) " FLOAT, "Race 3" TEXT, "Race Total ( pts ) " FLOAT)

What round does Duncan Tappy drive in?
SELECT MAX("SF Round") FROM table_25927 WHERE "Driver" = 'Duncan Tappy'
SELECT MAX("SF Round") FROM "table_25927" WHERE "Driver" = 'Duncan Tappy'