user: Question: Which To par has a Country of United States, and a Player of Duffy Waldorf?
Columns: ['Place', 'Player', 'Country', 'Score', 'To par']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['1', 'Greg Norman', 'Australia', '63-69-71=203', '–13']
SQL:

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