When was the earliest year that Guillermo Vilas was the runner-up?
CREATE TABLE table_name_9 (year INTEGER, runner_up VARCHAR)
SELECT MIN(year) FROM table_name_9 WHERE runner_up = "guillermo vilas"
### Context: CREATE TABLE table_name_9 (year INTEGER, runner_up VARCHAR) ### Question: When was the earliest year that Guillermo Vilas was the runner-up? ### Answer: SELECT MIN(year) FROM table_name_9 WHERE runner_up = "guillermo vilas"