Ruthin (GB) (Ribchester {Ire}) led home a 'TDN Rising Star' 1-3 finish in Friday's co-featured TVG Limestone S. at Keeneland, as she turned away a bid from her pace-pressing and favored stablemate, fellow 'Rising Star' Her World (Ire) (Caravaggio) and held off a late dive from Derrynane (Quality Road) for a narrow victory. So quickly into stride that jockey John Velazquez reported post-race that he surged back in the irons, Ruthin, a six-length graduate in a course-and-distance maiden 51 weeks ago to become the first winner for her sire, cut...