CREATE TABLE table_name_80 (opponents VARCHAR(255), partner VARCHAR(255), surface VARCHAR(255), outcome VARCHAR(255))
Which Opponents have a Surface of hard, and an Outcome of runner-up, and a Partner of jarmila gajdošová?
    
SQL: SELECT opponents FROM table_name_80 WHERE surface = "hard" AND outcome = "runner-up" AND partner = "jarmila gajdošová"