Wesley Ward knew his filly Pulstar (Kantharos) was fast but did she have the stamina to win Saturday's sixth at Saratoga, a maiden race that came off the turf and was run at 5 1/2 furlongs on the dirt? The answer is yes, but just barely. Like so many Ward-trained 2-year-olds, Pulstar shot out of the gate and grabbed a two-length lead down the backstretch. In mid-stretch she was still two in front, but the Mark Casse-trained Delightful Darling (Flameaway)was bearing down on her. The pair were basically on even...