CREATE TABLE table_9805 ("Date" TEXT, "Tournament" TEXT, "Winning score" TEXT, "Margin of victory" TEXT, "Runner ( s ) -up" TEXT)

What was the margin of victory when the runner-up was Janet Coles?
SELECT "Margin of victory" FROM table_9805 WHERE "Runner(s)-up" = 'janet coles'
SELECT "Margin of victory" FROM "table_9805" WHERE "Runner(s)-up" = 'janet coles'