What year had a score of 6–2, 2–6, 5–7, 7–6, 8–6?
CREATE TABLE "singles" (
  "year" text,
  "champion" text,
  "runner_up" text,
  "score" text,
  "name" text
);
SELECT "year" FROM "singles" WHERE "score"='6–2, 2–6, 5–7, 7–6, 8–6';