What is the average entry in the against column with draws smaller than 0?
CREATE TABLE "1969_as_three_leagues_come_together" (
  "portland_dfl" text,
  "wins" real,
  "byes" real,
  "losses" real,
  "draws" real,
  "against" real
);
SELECT AVG("against") FROM "1969_as_three_leagues_come_together" WHERE "draws"<0;