CREATE TABLE table_50189 ("Outcome" CLOB, "Date" CLOB, "Tournament" CLOB, "Surface" CLOB, "Opponent" CLOB, "Score" CLOB)

Who was the Opponent in the match with a Score of 6 3, 6 4?
SELECT "Opponent" FROM table_50189 WHERE "Score" = '6–3, 6–4'
SELECT "Opponent" FROM "table_50189" WHERE "Score" = '6–3, 6–4'