CREATE TABLE table_28456 ("Year" FLOAT, "Championship" CLOB, "54 holes" CLOB, "Winning score" CLOB, "Margin" CLOB, "Runner ( s ) -up" CLOB)

what is the space where the next one was mike turnesa
SELECT "Margin" FROM table_28456 WHERE "Runner(s)-up" = 'Mike Turnesa'
SELECT "Margin" FROM "table_28456" WHERE "Runner(s)-up" = 'Mike Turnesa'