CREATE TABLE table_15582 ("Res." TEXT, "Record" TEXT, "Opponent" TEXT, "Method" TEXT, "Event" TEXT, "Round" FLOAT, "Time" TEXT, "Location" TEXT)

What is the highest round reached by an oppo ent of JR schumacher?
SELECT MAX("Round") FROM table_15582 WHERE "Opponent" = 'jr schumacher'
SELECT MAX("Round") FROM "table_15582" WHERE "Opponent" = 'jr schumacher'