For the seventh time in 12 years, a 3-year-old Thoroughbred will take unwavering aim at one of the most difficult feats in sports when undefeated Big Brown advances to the Belmont Stakes on June 7 at New York's Belmont Park. There is one reason to believe that this colt, unscathed through five races in which he demolished the opposition by a combined 39 lengths, can succeed where Silver Charm, Real Quiet, Charismatic, War Emblem, Funny Cide and Smarty Jones all fell short.