What is the Date of the game with an Outcome of runner-up and Score of 5–7, 3–6, 6–3, 2–6?
CREATE TABLE "singles_14_5_9" (
  "outcome" text,
  "date" text,
  "championship" text,
  "surface" text,
  "opponent" text,
  "score" text
);
SELECT "date" FROM "singles_14_5_9" WHERE "outcome"='runner-up' AND "score"='5–7, 3–6, 6–3, 2–6';