CREATE TABLE table_69231 ("Race Title" TEXT, "Circuit" TEXT, "City / State" TEXT, "Date" TEXT, "Winner" TEXT, "Team" TEXT)

Who won at the Oran Park Raceway?
SELECT "Winner" FROM table_69231 WHERE "Circuit" = 'oran park raceway'
SELECT "Winner" FROM "table_69231" WHERE "Circuit" = 'oran park raceway'