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_2820584_3 (championship VARCHAR, partner VARCHAR)

### Question ###
What championship was played with Allan Stone as a partner?

### Accurate SQL ###

SELECT championship FROM table_2820584_3 WHERE partner = "Allan Stone"