CREATE TABLE table_56158 ("Outcome" CLOB, "Date" CLOB, "Tournament" CLOB, "Surface" CLOB, "Partner" CLOB, "Opponents in the final" CLOB, "Score" CLOB)

Which date has a Score of 6 4, 6 3?
SELECT "Date" FROM table_56158 WHERE "Score" = '6–4, 6–3'
SELECT "Date" FROM "table_56158" WHERE "Score" = '6–4, 6–3'