Who was the winner of the race at barbagallo raceway?
CREATE TABLE table_20884160_1 (winner VARCHAR, circuit VARCHAR)
SELECT winner FROM table_20884160_1 WHERE circuit = "Barbagallo Raceway"
### Context: CREATE TABLE table_20884160_1 (winner VARCHAR, circuit VARCHAR) ### Question: Who was the winner of the race at barbagallo raceway? ### Answer: SELECT winner FROM table_20884160_1 WHERE circuit = "Barbagallo Raceway"