CREATE TABLE table_4462 ("Outcome" TEXT, "Date" TEXT, "Tournament" TEXT, "Surface" TEXT, "Opponent" TEXT, "Score" TEXT)

What surface was the game played on for the September 13, 2009 match?
SELECT "Surface" FROM table_4462 WHERE "Date" = 'september 13, 2009'
SELECT "Surface" FROM "table_4462" WHERE "Date" = 'september 13, 2009'