CREATE TABLE table_68698 ("Res." CLOB, "Record" CLOB, "Opponent" CLOB, "Method" CLOB, "Event" CLOB, "Round" FLOAT, "Location" CLOB)

What is the highest round for UFC 109?
SELECT MAX("Round") FROM table_68698 WHERE "Event" = 'ufc 109'
SELECT MAX("Round") FROM "table_68698" WHERE "Event" = 'ufc 109'