user: Question: which To par has a Country of United States, and a Player of Dave Stockton?
Columns: ['Player', 'Country', 'Year(s) won', 'Total', 'To par', 'Finish']
Types: ['text', 'text', 'text', 'real', 'text', 'text']
Sample row: ['Lee Trevino', 'United States', '1974 , 1984', 280.0, '–4', '2']
SQL:

assistant: SELECT "To par" FROM "Table" WHERE "Country" = 'United States' AND "Player" = 'Dave Stockton';