Question: Which type of surface do Amer Delic Robert Kendrick's opponents have?
SQL: SELECT "Surface" FROM "2-12397961-13" WHERE "Opponents" = 'Amer Delic Robert Kendrick';

Question: On which surface was the score w/o?
SQL: SELECT "Surface" FROM "2-12397961-13" WHERE "Score" = 'w/o';

Question: What is Diego Junqueira Gabriel Trujillo-Soler's opponent's score?
SQL: SELECT "Score" FROM "2-12397961-13" WHERE "Opponents" = 'Diego Junqueira Gabriel Trujillo-Soler';

Question: Which surface do opponents of Thomas Oger Nicolas Tourte have?
SQL: SELECT "Surface" FROM "2-12397961-13" WHERE "Opponents" = 'Thomas Oger Nicolas Tourte';