In what tournament was the difference only 1 stroke and 54 holes with a 2 shot deficit?
CREATE TABLE "wins_18" (
  "year" text,
  "championship" text,
  "54_holes" text,
  "winning_score" text,
  "margin" text,
  "runner_s_up" text
);
SELECT "championship" FROM "wins_18" WHERE "margin"='1 stroke' AND "54_holes"='2 shot deficit';