CREATE TABLE table_18086 ("Club" TEXT, "Played" TEXT, "Won" TEXT, "Drawn" TEXT, "Lost" TEXT, "Points for" TEXT, "Points against" TEXT, "Tries for" TEXT, "Tries against" TEXT, "Try bonus" TEXT, "Losing bonus" TEXT, "Points" TEXT)

What was the number of points against when the amount won is 10?
SELECT "Points against" FROM table_18086 WHERE "Won" = '10'
SELECT "Points against" FROM "table_18086" WHERE "Won" = '10'