What is Place, when Score is "69-69=138", and when Country is "United States"?
CREATE TABLE "second_round" (
  "place" text,
  "player" text,
  "country" text,
  "score" text,
  "to_par" text
);
SELECT "place" FROM "second_round" WHERE "score"='69-69=138' AND "country"='united states';