question: What is the Date of the match with a Score in the final of 6–3, 6–3, 2–6, 6–4?
answer: SELECT date FROM table_name_9 WHERE score_in_the_final = "6–3, 6–3, 2–6, 6–4"
context: CREATE TABLE table_name_9 (date VARCHAR, score_in_the_final VARCHAR)