Question: What is the margin for the Masters Tournament (2) championship?
SQL: SELECT "Margin" FROM "2-11570261-1" WHERE "Championship" = 'Masters Tournament (2)';

Question: How many years had 54 holes and a 2 shot lead?
SQL: SELECT COUNT("Year") FROM "2-11570261-1" WHERE "54 holes" = '2 shot lead';

Question: What is the round of 54 holes in which Phil Mickelson was the runner-up?
SQL: SELECT "54 holes" FROM "2-11570261-1" WHERE "Runner(s)-up" = 'Phil Mickelson';

Question: What is the championship when the margin was 2 strokes, there were 54 holes with a 1 shot lead, and the runner-up was David Duval?
SQL: SELECT "Championship" FROM "2-11570261-1" WHERE "Margin" = '2 strokes' AND "54 holes" = '1 shot lead' AND "Runner(s)-up" = 'David Duval';