user: Question: Which Date has a Score of 6–1 7–6 (8–6)?
Columns: ['Outcome', 'Date', 'Tournament', 'Surface', 'Opponent in the final', 'Score']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Winner', '28 March 2004', 'Yarrawonga , Australia', 'Grass', 'Kavitha Krishnamurthy', '6–7 (4–7) 7–6 (8–6) 6–3']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Score" = '6–1 7–6 (8–6)';