CREATE TABLE table_11480 ("Date" TEXT, "Tournament" TEXT, "Winning score" TEXT, "To par" TEXT, "Margin of victory" TEXT)

What is the margin of victory of the tournament with a winning score of 70-67-64-71=272?
SELECT "Margin of victory" FROM table_11480 WHERE "Winning score" = '70-67-64-71=272'
SELECT "Margin of victory" FROM "table_11480" WHERE "Winning score" = '70-67-64-71=272'