SARATOGA SPRINGS, N.Y. -- Tenacious Leader (Not This Time) served up a sample of his grit Saturday in what turned into a decisive maiden special weight victory at Saratoga Race Course. The Spendthrift Farm and Repole Stable colt turned in a textbook performance under leading rider Irad Ortiz Jr. and finished 4 3/4 lengths ahead of Clock Tower (Not This Time) in the $100,000 one-mile race on the main track. Race 7 on the program was originally scheduled for 1 1/16 miles on the inner turf course, but the New...