Which Date has a Score of 7–6(3), 4–6, 6–2?
CREATE TABLE "singles_titles" (
  "date" real,
  "tournament" text,
  "surface" text,
  "opponent_in_the_final" text,
  "score" text
);
SELECT SUM("date") FROM "singles_titles" WHERE "score"='7–6(3), 4–6, 6–2';