On what Date was Judy Rankin Runner(s)-up?
CREATE TABLE "lpga_tour_wins_7" (
  "date" text,
  "tournament" text,
  "winning_score" text,
  "margin_of_victory" text,
  "runner_s_up" text
);
SELECT "date" FROM "lpga_tour_wins_7" WHERE "runner_s_up"='judy rankin';