CREATE TABLE table_28440 ("Sd" FLOAT, "Rk" FLOAT, "Player" TEXT, "Points" FLOAT, "Points defending" FLOAT, "Points won" FLOAT, "New points" FLOAT, "Status" TEXT)

What is the highest sd when the status is second round lost to iveta bene ov ?
SELECT MAX("Sd") FROM table_28440 WHERE "Status" = 'Second round lost to Iveta Benešová'
SELECT MAX("Sd") FROM "table_28440" WHERE "Status" = 'Second round lost to Iveta Benešová'