Which Outcome has a Championship of us championships, and a Score in the final of 5–7, 6–1, 6–3, 6–3?
CREATE TABLE "grand_slam" (
  "outcome" text,
  "year" real,
  "championship" text,
  "surface" text,
  "opponent_in_the_final" text,
  "score_in_the_final" text
);
SELECT "outcome" FROM "grand_slam" WHERE "championship"='us championships' AND "score_in_the_final"='5–7, 6–1, 6–3, 6–3';