CREATE TABLE table_name_54 (surface VARCHAR2, score VARCHAR2)

What was the surface type during the match with the score of 6 4, 7 6 (7-5)??
SELECT surface FROM table_name_54 WHERE score = "6–4, 7–6 (7-5)"
SELECT "surface" FROM "table_name_54" WHERE "6–4, 7–6 (7-5)" = "score"