CREATE TABLE table_45423 ("Res." CLOB, "Record" CLOB, "Opponent" CLOB, "Method" CLOB, "Event" CLOB, "Round" FLOAT, "Location" CLOB)

What is the highest round a fight lasted against masutatsu yano?
SELECT MAX("Round") FROM table_45423 WHERE "Opponent" = 'masutatsu yano'
SELECT MAX("Round") FROM "table_45423" WHERE "Opponent" = 'masutatsu yano'