What is the highest year for the US Open?
CREATE TABLE table_name_4 (year INTEGER, championship VARCHAR)
SELECT MAX(year) FROM table_name_4 WHERE championship = "us open"
### Context: CREATE TABLE table_name_4 (year INTEGER, championship VARCHAR) ### Question: What is the highest year for the US Open? ### Answer: SELECT MAX(year) FROM table_name_4 WHERE championship = "us open"