CREATE TABLE table_35866 ("Res." CLOB, "Record" CLOB, "Opponent" CLOB, "Method" CLOB, "Event" CLOB, "Round" CLOB)

Which round has the record of 5-0?
SELECT "Round" FROM table_35866 WHERE "Record" = '5-0'
SELECT "Round" FROM "table_35866" WHERE "Record" = '5-0'