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_2308381_2 (avg_finish VARCHAR, position VARCHAR)

### Question ###
Name the avg finish for position of 70th

### Accurate SQL ###

SELECT avg_finish FROM table_2308381_2 WHERE position = "70th"