Which date has a Surface of carpet (i)?
CREATE TABLE "singles_finals_2_titles_4_runner_ups" (
  "outcome" text,
  "date" text,
  "tournament" text,
  "surface" text,
  "opponent" text,
  "score" text
);
SELECT "date" FROM "singles_finals_2_titles_4_runner_ups" WHERE "surface"='carpet (i)';