CREATE TABLE table_6344 ("Name" CLOB, "Circuit" CLOB, "Date" CLOB, "Winning driver" CLOB, "Winning constructor" CLOB, "Report" CLOB)

When is vanderbilt cup in?
SELECT "Date" FROM table_6344 WHERE "Name" = 'vanderbilt cup'
SELECT "Date" FROM "table_6344" WHERE "Name" = 'vanderbilt cup'