CREATE TABLE table_name_80 (score VARCHAR, player VARCHAR, country VARCHAR, place VARCHAR)

What is the score for the United States in place T1 for David Duval?
SELECT score FROM table_name_80 WHERE country = "united states" AND place = "t1" AND player = "david duval"
SELECT "score" FROM "table_name_80" WHERE "country" = "united states" AND "david duval" = "player" AND "place" = "t1"