What was the date of the first match of the Fifa Club World Cup that ended with the final position as winners?
CREATE TABLE "overall" (
  "competition" text,
  "started_round" text,
  "final_position" text,
  "final_round" text,
  "first_match" text,
  "last_match" text
);
SELECT "first_match" FROM "overall" WHERE "final_position"='winners' AND "competition"='fifa club world cup';