Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_89 (date VARCHAR, winning_score VARCHAR)
### Question:
When was the winning score −9 (72-68-64-67=271)?
### Answer:
SELECT date FROM table_name_89 WHERE winning_score = −9(72 - 68 - 64 - 67 = 271)