CREATE TABLE table_16936 ("Date" TEXT, "Tournament" TEXT, "Location" TEXT, "Purse (  $  ) " FLOAT, "Winner" TEXT, "Score" TEXT, "1st Prize (  $  ) " FLOAT)

what's the date with tournament value of ford senior players championship
SELECT "Date" FROM table_16936 WHERE "Tournament" = 'Ford Senior Players Championship'
SELECT "Date" FROM "table_16936" WHERE "Tournament" = 'Ford Senior Players Championship'