CREATE TABLE table_7220 ("Date" TEXT, "Tournament" TEXT, "Winning score" TEXT, "Margin of victory" TEXT, "Runner ( s ) -up" TEXT)

For the tournament ending with a margin of victory of 2 strokes, who was the runner(s)-up?
SELECT "Runner(s)-up" FROM table_7220 WHERE "Margin of victory" = '2 strokes'
SELECT "Runner(s)-up" FROM "table_7220" WHERE "Margin of victory" = '2 strokes'