CREATE TABLE table_75767 ("Date" TEXT, "Tournament" TEXT, "Winning score" TEXT, "Margin of victory" TEXT, "Runner ( s ) -up" TEXT)

Which Date has a Margin of victory of 5 strokes, and a Winning score of 13 (67-73-64-63=267)?
SELECT "Date" FROM table_75767 WHERE "Margin of victory" = '5 strokes' AND "Winning score" = '−13 (67-73-64-63=267)'
SELECT "Date" FROM "table_75767" WHERE "Margin of victory" = '5 strokes' AND "Winning score" = '−13 (67-73-64-63=267)'