CREATE TABLE table_name_7 (opponent VARCHAR2, score VARCHAR2)

Which opponent has a Score of 6 4, 3 6, 6 3?
SELECT opponent FROM table_name_7 WHERE score = "6–4, 3–6, 6–3"
SELECT "opponent" FROM "table_name_7" WHERE "6–4, 3–6, 6–3" = "score"