What's the best rank possible?
CREATE TABLE "2011_supertwin_practice_times_and_leader" (
  "rank" real,
  "rider" text,
  "sat_20_aug" text,
  "mon_22_aug" text,
  "tues_23_aug" text,
  "wed_24_aug" text,
  "thurs_25_aug" text,
  "fri_26_aug" text
);
SELECT MIN("rank") FROM "2011_supertwin_practice_times_and_leader";