When was the pre-Week 10 game that had an attendance of over 38,865?
CREATE TABLE "game_by_game_results" (
  "week" real,
  "date" text,
  "opponent" text,
  "result" text,
  "attendance" text
);
SELECT "date" FROM "game_by_game_results" WHERE "week"<10 AND "attendance"='38,865';