CREATE TABLE table_204_557 (id DECIMAL, "#" DECIMAL, "date" TEXT, "visitor" TEXT, "score" TEXT, "home" TEXT, "record" TEXT, "pts" DECIMAL)

which date had the least amount of points listed ?
SELECT "date" FROM table_204_557 ORDER BY "pts" LIMIT 1
SELECT "date" FROM "table_204_557" ORDER BY "pts" NULLS FIRST LIMIT 1