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_22669816_1 ( length VARCHAR, winning_driver VARCHAR )

### Question ###
What length was won by Roger McCluskey?

### Accurate SQL ###

SELECT length FROM table_22669816_1 WHERE winning_driver = "Roger McCluskey"