CREATE TABLE table_67237 ("Outcome" TEXT, "Date" TEXT, "Tournament" TEXT, "Surface" TEXT, "Opponent" TEXT, "Score" TEXT)

Name the date with a hard surface and tournament of usa f5, brownsville
SELECT "Date" FROM table_67237 WHERE "Surface" = 'hard' AND "Tournament" = 'usa f5, brownsville'
SELECT "Date" FROM "table_67237" WHERE "Surface" = 'hard' AND "Tournament" = 'usa f5, brownsville'