What Date has a Score in the final of 3–6, 2–6, 4–6?
CREATE TABLE "singles_5_3_2" (
  "outcome" text,
  "date" text,
  "championship" text,
  "surface" text,
  "opponent_in_the_final" text,
  "score_in_the_final" text
);
SELECT "date" FROM "singles_5_3_2" WHERE "score_in_the_final"='3–6, 2–6, 4–6';