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_10725629_2 ( rnd VARCHAR, race_name VARCHAR )

### Question ###
How many rounds were there of the Bosch Spark Plug Grand Prix?

### Accurate SQL ###

SELECT COUNT(rnd) FROM table_10725629_2 WHERE race_name = "Bosch Spark Plug Grand Prix"