CREATE TABLE table_11497 ("Date" TEXT, "Opponent" TEXT, "Home/Away" TEXT, "Field" TEXT, "Result" TEXT)

What is the date of the game against the Lizards with a result of w 18-17?
SELECT "Date" FROM table_11497 WHERE "Opponent" = 'lizards' AND "Result" = 'w 18-17'
SELECT "Date" FROM "table_11497" WHERE "Opponent" = 'lizards' AND "Result" = 'w 18-17'