SELECT surface FROM table_name_82 WHERE result = "6–7 (6–7) , 7–6 (9–7) , 6–7 (4–7) , 7–5, 3–6"
Apa permukaannya ketika hasilnya adalah 6-7 (6-7), 7-6 (9-7), 6-7 (4-7), 7–5, 3–6?
CREATE TABLE table_name_82 (surface VARCHAR, result VARCHAR)