user: Question: Who were the opponents in the final when the game was played on Hard surface and the score of the final was 6–1, 1–6, 7–6(4)?
Columns: ['Outcome', 'Date', 'Tournament', 'Surface', 'Partner', 'Opponents in Final', 'Score in Final']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Runner-up', 'April 26, 1999', 'Bol , Croatia', 'Clay', 'Andreea Vanc', 'Jelena Kostanić Michaela Paštikov', '7–5, 6–7(1), 6–2']
SQL:

assistant: SELECT "Opponents in Final" FROM "Table" WHERE "Surface" = 'Hard' AND "Score in Final" = '6–1, 1–6, 7–6(4)';