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_21436373_10 (date_year VARCHAR, type_of_record VARCHAR)
### Question:
When was the pre-season game record achieved?
### Answer:
SELECT date_year FROM table_21436373_10 WHERE type_of_record = "Pre-season game"