CREATE TABLE table_53240 ("Date" CLOB, "Opponent" CLOB, "Home/Away" CLOB, "Field" CLOB, "Result" CLOB)

What is the date of the game at Commerce Bank Ballpark?
SELECT "Date" FROM table_53240 WHERE "Field" = 'commerce bank ballpark'
SELECT "Date" FROM "table_53240" WHERE "Field" = 'commerce bank ballpark'