CREATE TABLE table_13955 ("Date" CLOB, "Tournament" CLOB, "Surface" CLOB, "Opponent in final" CLOB, "Score" CLOB, "Prize Money" CLOB)

What is the Date of the Tournament against Anastasiya Yakimova?
SELECT "Date" FROM table_13955 WHERE "Opponent in final" = 'anastasiya yakimova'
SELECT "Date" FROM "table_13955" WHERE "Opponent in final" = 'anastasiya yakimova'