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_28 (races INTEGER, points VARCHAR)
### Question:
What is the number of races that took place with points of 257?
### Answer:
SELECT SUM(races) FROM table_name_28 WHERE points = 257