CREATE TABLE table_12585 ("Outcome" CLOB, "Date" CLOB, "Category" CLOB, "Tournament" CLOB, "Surface" CLOB, "Opponent" CLOB, "Score" CLOB)

What is the Date of the match against Guillermo Olaso?
SELECT "Date" FROM table_12585 WHERE "Opponent" = 'guillermo olaso'
SELECT "Date" FROM "table_12585" WHERE "Opponent" = 'guillermo olaso'