user: Question: Which tournament has an opponent in the final of Nadia Petrova and a score of 6–3, 4–6, 6–1??
Columns: ['Date', 'Tournament', 'Surface', 'Opponent in the final', 'Score']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['15 September 1996', 'Karlovy Vary , Czech Republic', 'Clay', 'Ruxandra Dragomir', '6–2, 3–6, 6–4']
SQL:

assistant: SELECT "Tournament" FROM "Table" WHERE "Opponent in the final" = 'Nadia Petrova' AND "Score" = '6–3, 4–6, 6–1';