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_48 (race VARCHAR, circuit VARCHAR)
### Question:
How many races were in the Mallala Motor Sport Park circuit?
### Answer:
SELECT COUNT(race) FROM table_name_48 WHERE circuit = "mallala motor sport park"