What Tournament's Score was 6–2, 4–6, 6–4?
CREATE TABLE "singles_12_8" (
  "date" text,
  "tournament" text,
  "surface" text,
  "opponent" text,
  "score" text
);
SELECT "tournament" FROM "singles_12_8" WHERE "score"='6–2, 4–6, 6–4';