CREATE TABLE table_name_86 (surface VARCHAR, score_in_the_final VARCHAR)

What is the Surface of the match with a Score in the final of 5 7, 6 7 (2 7)?
SELECT surface FROM table_name_86 WHERE score_in_the_final = "5–7, 6–7 (2–7)"
SELECT "surface" FROM "table_name_86" WHERE "5–7, 6–7 (2–7)" = "score_in_the_final"