Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_22648285_1 (race_time VARCHAR, driver VARCHAR, average_speed__mph_ VARCHAR)

### Question ###
How many races did Cale Yarborough win at an average speed of 88.924 mph?

### Accurate SQL ###

SELECT COUNT(race_time) FROM table_22648285_1 WHERE driver = "Cale Yarborough" AND average_speed__mph_ = "88.924"