What Opponent has a Score that is 1-6, 3-6?
CREATE TABLE "singles_finals_18_11_7" (
  "outcome" text,
  "date" text,
  "tournament" text,
  "surface" text,
  "opponent" text,
  "score" text
);
SELECT "opponent" FROM "singles_finals_18_11_7" WHERE "score"='1-6, 3-6';