CREATE TABLE "singles_titles" (
  "date" text,
  "tournament" text,
  "surface" text,
  "opponent" text,
  "score" text
);

Question: Who was the opponent when the score was 6–4, 6–7 (2–7) , 7–5?
SQL: SELECT "opponent" FROM "singles_titles" WHERE "score"='6–4, 6–7 (2–7) , 7–5';

Question: Which tournament was andreas haider-maurer the opponent in?
SQL: SELECT "tournament" FROM "singles_titles" WHERE "opponent"='andreas haider-maurer';