CREATE TABLE table_57034 ("Date" TEXT, "Tournament" TEXT, "Location" TEXT, "Purse (  $  ) " FLOAT, "Winner" TEXT, "Score" TEXT, "1st Prize (  $  ) " FLOAT)

For sep 18 what is the total number of 1 prize ($)
SELECT COUNT("1st Prize( $ )") FROM table_57034 WHERE "Date" = 'sep 18'
SELECT COUNT("1st Prize( $ )") FROM "table_57034" WHERE "Date" = 'sep 18'