LOUISVILLE, Ky. - Sometimes a loss can legitimately be blamed on extraneous factors, such as a slow pace, but far more often a horse is defeated simply because it didn't run fast enough. It might be tempting to say Oneofacat was helpless to overtake a front-running winner in her last start, but the more plausible explanation for her distant third-place finish as the favorite in that May 28 race at Churchill Downs was because she did not fire her best shot.