CREATE TABLE table_46150 ("Res." TEXT, "Record" TEXT, "Opponent" TEXT, "Method" TEXT, "Event" TEXT, "Round" TEXT, "Location" TEXT)

What was the round when he fought Joe Stevenson?
SELECT "Round" FROM table_46150 WHERE "Opponent" = 'joe stevenson'
SELECT "Round" FROM "table_46150" WHERE "Opponent" = 'joe stevenson'