CREATE TABLE table_72120 ("Rd" FLOAT, "Name" TEXT, "Pole Position" TEXT, "Fastest Lap" TEXT, "Winning driver" TEXT, "Winning team" TEXT, "Report" TEXT)

How many winning drivers in the kraco twin 125 (r2) race were there?
SELECT COUNT("Winning driver") FROM table_72120 WHERE "Name" = 'Kraco Twin 125 (R2)'
SELECT COUNT("Winning driver") FROM "table_72120" WHERE "Name" = 'Kraco Twin 125 (R2)'