CREATE TABLE table_42351 ("Race Title" TEXT, "Circuit" TEXT, "City / State" TEXT, "Date" TEXT, "Winner" TEXT, "Team" TEXT)

What date was the race at Oran Park ran?
SELECT "Date" FROM table_42351 WHERE "Race Title" = 'oran park'
SELECT "Date" FROM "table_42351" WHERE "Race Title" = 'oran park'