CREATE TABLE table_203_720 (id DECIMAL, "date" TEXT, "opponent#" TEXT, "rank#" TEXT, "site" TEXT, "result" TEXT)

which opponent scored the least amount of points against them in a game ?
SELECT "opponent#" FROM table_203_720 ORDER BY "result" LIMIT 1
SELECT "opponent#" FROM "table_203_720" ORDER BY "result" NULLS FIRST LIMIT 1