CREATE TABLE table_name_76 (surface VARCHAR, outcome VARCHAR, score VARCHAR)

What is the Surface of the match with winner as outcome and a score of 7 5, 7 5?
SELECT surface FROM table_name_76 WHERE outcome = "winner" AND score = "7–5, 7–5"
SELECT "surface" FROM "table_name_76" WHERE "7–5, 7–5" = "score" AND "outcome" = "winner"