CREATE TABLE table_68760 ("Outcome" CLOB, "Date" CLOB, "Tournament" CLOB, "Surface" CLOB, "Opponent" CLOB, "Score" CLOB)

Which tournament has a Date of april 20, 1987?
SELECT "Tournament" FROM table_68760 WHERE "Date" = 'april 20, 1987'
SELECT "Tournament" FROM "table_68760" WHERE "Date" = 'april 20, 1987'