ARLINGTON HEIGHTS, Ill. -- Trainers do not make a habit of comparing star horses that have passed through their barn. Bad politics. But after Paddy O’Prado had won his third straight graded turf stakes, capturing the $400,000 Secretariat by 1 1/4 lengths over English invader Wigmore Hall on a steamy Saturday at Arlington Park, trainer Dale Romans did not hesitate to bring up a standout from the past.