CREATE TABLE table_26734 ("Year" CLOB, "Championship" CLOB, "54 holes" CLOB, "Winning score" CLOB, "Margin" CLOB, "Runner ( s ) -up" CLOB)

In what tournament was the difference only 1 stroke and 54 holes with a 2 shot deficit?
SELECT "Championship" FROM table_26734 WHERE "Margin" = '1 stroke' AND "54 holes" = '2 shot deficit'
SELECT "Championship" FROM "table_26734" WHERE "54 holes" = '2 shot deficit' AND "Margin" = '1 stroke'