Question: What was the 1999 Tournament at the US Open?
SQL: SELECT "1999" FROM "2-18330817-11" WHERE "Tournament" = 'US Open';

Question: WhAt tournAment wAs An A 1988, And A 2R 1999?
SQL: SELECT "Tournament" FROM "2-18330817-11" WHERE "1988" = 'A' AND "1999" = '2R';

Question: What is the 1991 for 2R 1999?
SQL: SELECT "1991" FROM "2-18330817-11" WHERE "1999" = '2R';

Question: WhAt is the 1999 for An A 1991, And A 1R 1997?
SQL: SELECT "1999" FROM "2-18330817-11" WHERE "1991" = 'A' AND "1997" = '1R';

Question: What is the 1991 with a 2R 1996?
SQL: SELECT "1991" FROM "2-18330817-11" WHERE "1996" = '2R';