All along, the story of the dramatic rise of the unwanted horse and her down-on-his-luck trainer had seemed too good to be true. On the 36th day of the Saratoga racing meet, it was. The Finger Lakes Race Track Favorite-Lisa’s Booby Trap- finished last in a division of Thursday’s Riskaverse Stakes at Saratoga. Eased up as she crossed the wire by jockey Kent Desormeaux, she was beaten by 16 ¾ lengths.