CREATE TABLE table_52101 ("Team" TEXT, "Points" FLOAT, "Played" FLOAT, "Drawn" FLOAT, "Lost" FLOAT, "Against" FLOAT, "Diff" FLOAT)

Which loss had a player lower than 18?
SELECT MIN("Lost") FROM table_52101 WHERE "Played" < '18'
SELECT MIN("Lost") FROM "table_52101" WHERE "Played" < '18'