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

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'