Who is the opponent in the final on a hard surface with a score of 6–3 7–6(5)?
CREATE TABLE "singles_titles" (
  "date" text,
  "tournament" text,
  "surface" text,
  "opponent_in_the_final" text,
  "score" text
);
SELECT "opponent_in_the_final" FROM "singles_titles" WHERE "surface"='hard' AND "score"='6–3 7–6(5)';