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_2190919_1 ( team_s_ VARCHAR, avg_finish VARCHAR )

### Question ###
What are the racing teams for which the average finish is 23.3?

### Accurate SQL ###

SELECT team_s_ FROM table_2190919_1 WHERE avg_finish = "23.3"