CREATE TABLE table_76450 ("Res." CLOB, "Record" CLOB, "Opponent" CLOB, "Method" CLOB, "Event" CLOB, "Round" FLOAT, "Time" CLOB, "Location" CLOB)

What was the round that Sergio Vinagre had a time of 5:00?
SELECT MAX("Round") FROM table_76450 WHERE "Time" = '5:00' AND "Opponent" = 'sergio vinagre'
SELECT MAX("Round") FROM "table_76450" WHERE "Opponent" = 'sergio vinagre' AND "Time" = '5:00'