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_2771237_1 (overall_record VARCHAR, average_attendance VARCHAR)

### Question ###
What was the overall record in the season where average attendance was 16720?

### Accurate SQL ###

SELECT overall_record FROM table_2771237_1 WHERE average_attendance = 16720