CREATE TABLE table_57681 ("Res." CLOB, "Record" CLOB, "Opponent" CLOB, "Method" CLOB, "Event" CLOB, "Round" FLOAT, "Time" CLOB)

How many rounds have an Opponent of sakae kasuya?
SELECT COUNT("Round") FROM table_57681 WHERE "Opponent" = 'sakae kasuya'
SELECT COUNT("Round") FROM "table_57681" WHERE "Opponent" = 'sakae kasuya'