CREATE TABLE "doubles_5_13" (
  "outcome" text,
  "date" text,
  "surface" text,
  "opponent" text,
  "score" text
);

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 "doubles_5_13" 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 "doubles_5_13" WHERE "score"='akgul amanmuradova chuang chia-jung';

Question: What date was the surface hard and Eva Hrdinová was the opponent?
SQL: SELECT "date" FROM "doubles_5_13" WHERE "surface"='hard' AND "opponent"='eva hrdinová';

Question: What was the surface of the match against bethanie mattek-sands?
SQL: SELECT "surface" FROM "doubles_5_13" WHERE "opponent"='bethanie mattek-sands';