Which Opponent has a Surface of hardcourt, an Outcome of runner-up, and a Tournament of honolulu?
CREATE TABLE "singles_finals_2_titles_4_runner_ups" (
  "outcome" text,
  "date" text,
  "tournament" text,
  "surface" text,
  "opponent" text,
  "score" text
);
SELECT "opponent" FROM "singles_finals_2_titles_4_runner_ups" WHERE "surface"='hardcourt' AND "outcome"='runner-up' AND "tournament"='honolulu';