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_name_21 ( year VARCHAR, reg_season VARCHAR, open_cup VARCHAR )

### Question ###
What year was the team 8th in the season and made it to the 3rd round in Open Cup?

### Accurate SQL ###

SELECT year FROM table_name_21 WHERE reg_season = "8th" AND open_cup = "3rd round"