user: Question: Who was the winner of the race at Barbagallo Raceway?
Columns: ['Rd.', 'Race Title', 'Circuit', 'Location', 'Date', 'Format', 'Winner', 'Team', 'Report']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'Clipsal 500 Adelaide', 'Adelaide Street Circuit', 'Adelaide , South Australia', '23 - 26 Mar', 'Two races', 'Jamie Whincup', 'Triple Eight Race Engineering', 'Report']
SQL:

assistant: SELECT "Winner" FROM "Table" WHERE "Circuit" = 'Barbagallo Raceway';