Question: What is the surface of the match when the outcome was Runner-up, and a Score of Julia Görges Polona Hercog?
SQL: SELECT "Surface" FROM "2-12406580-4" WHERE "Outcome" = 'Runner-up' AND "Score" = 'Julia Görges Polona Hercog';

Question: What was the surface of the match when the score was Akgul Amanmuradova Chuang Chia-jung?
SQL: SELECT "Surface" FROM "2-12406580-4" WHERE "Score" = 'Akgul Amanmuradova Chuang Chia-jung';

Question: What date was the surface Hard and Eva Hrdinová was the opponent?
SQL: SELECT "Date" FROM "2-12406580-4" WHERE "Surface" = 'Hard' AND "Opponent" = 'Eva Hrdinová';

Question: What was the surface of the match against Bethanie Mattek-Sands?
SQL: SELECT "Surface" FROM "2-12406580-4" WHERE "Opponent" = 'Bethanie Mattek-Sands';