CREATE TABLE table_43592 ("Outcome" TEXT, "Date" TEXT, "Championship" TEXT, "Surface" TEXT, "Opponent" TEXT, "Score" TEXT)

What is the Date of the game with a Score of 4 6, 4 6?
SELECT "Date" FROM table_43592 WHERE "Score" = '4–6, 4–6'
SELECT "Date" FROM "table_43592" WHERE "Score" = '4–6, 4–6'