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_2187333_1 (avg_start VARCHAR, avg_finish VARCHAR)

### Question ###
Name the avg start for avg finish of 18.3

### Accurate SQL ###

SELECT avg_start FROM table_2187333_1 WHERE avg_finish = "18.3"