CREATE TABLE table_50391 ("Outcome" TEXT, "Date" TEXT, "Championship" TEXT, "Surface" TEXT, "Opponent in the final" TEXT, "Score in the final" TEXT)

What is the date of the match with a winner outcome and jim courier as the opponent in the final?
SELECT "Date" FROM table_50391 WHERE "Outcome" = 'winner' AND "Opponent in the final" = 'jim courier'
SELECT "Date" FROM "table_50391" WHERE "Opponent in the final" = 'jim courier' AND "Outcome" = 'winner'