CREATE TABLE table_50141 ("Res." CLOB, "Record" CLOB, "Opponent" CLOB, "Method" CLOB, "Event" CLOB, "Round" FLOAT, "Time" CLOB, "Location" CLOB)

In which round was Dustin Hazelett the opponent?
SELECT "Round" FROM table_50141 WHERE "Opponent" = 'dustin hazelett'
SELECT "Round" FROM "table_50141" WHERE "Opponent" = 'dustin hazelett'