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_22597626_2 ( year INTEGER, outcome VARCHAR, championship VARCHAR )

### Question ###
In the US Open championship and the outcome is runner-up, what is the minimum year?

### Accurate SQL ###

SELECT MIN(year) FROM table_22597626_2 WHERE outcome = "Runner-up" AND championship = "US Open"