Which Opponents have a Surface of hard, and an Outcome of runner-up, and a Partner of jarmila gajdošová?
CREATE TABLE "doubles_10_2_titles_8_runners_up" (
  "outcome" text,
  "date" text,
  "surface" text,
  "partner" text,
  "opponents" text,
  "score" text
);
SELECT "opponents" FROM "doubles_10_2_titles_8_runners_up" WHERE "surface"='hard' AND "outcome"='runner-up' AND "partner"='jarmila gajdošová';