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_203_584 ( id number, "date" text, "race name" text, "d(f)" number, "course" text, "prize (\u00a3)" number, "odds" text, "runners" number, "place" number, "margin" number, "winner/runner-up" text, "time" text, "jockey" text )

### Question ###
what are the number of times a race took place at the epsom downs racecourse ?

### Accurate SQL ###

SELECT COUNT(*) FROM table_203_584 WHERE "course" = 'epsom downs'