user: Question: Which opponent has a Score of 6–4, 3–6, 6–3?
Columns: ['Outcome', 'Date', 'Tournament', 'Surface', 'Opponent', 'Score']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Winner', '2 March 2006', 'Mazatlán ,', 'Hard', 'Andrea Remynse', '6–2, 6–4']
SQL:

assistant: SELECT "Opponent" FROM "Table" WHERE "Score" = '6–4, 3–6, 6–3';