CREATE TABLE table_48755 ("Date" CLOB, "Tournament" CLOB, "Winning score" CLOB, "Margin of victory" CLOB, "Runner ( s ) -up" CLOB)

What is Date, when Margin Of Victory is 4 Strokes?
SELECT "Date" FROM table_48755 WHERE "Margin of victory" = '4 strokes'
SELECT "Date" FROM "table_48755" WHERE "Margin of victory" = '4 strokes'