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_27537518_9 (date VARCHAR, record VARCHAR)
### Question:
On which date was the record of 27-28-11 set?
### Answer:
SELECT date FROM table_27537518_9 WHERE record = "27-28-11"