CREATE TABLE table_44850 ("Res." CLOB, "Record" CLOB, "Opponent" CLOB, "Method" CLOB, "Event" CLOB, "Round" FLOAT, "Time" CLOB, "Location" CLOB)

What was the name of the opponent when the method was ko (slam), and record was 13 1?
SELECT "Opponent" FROM table_44850 WHERE "Method" = 'ko (slam)' AND "Record" = '13–1'
SELECT "Opponent" FROM "table_44850" WHERE "Method" = 'ko (slam)' AND "Record" = '13–1'