Complex sentence: Raven's Pass was sired by Elusive Quality, who also sired 2004 Kentucky Derby and Preakness Stakes winner Smarty Jones, his dam Ascutney was by Lord At War, making him a half-brother to the Miami Mile Handicap winner Gigawatt.
Split into simpler sentences: Raven's Pass was sired by Elusive Quality, who also sired 2004 Kentucky Derby and Preakness Stakes winner Smarty Jones. His dam, Ascutney, was by Lord At War,, making him a half-brother to Miami Mile Handicap winner Gigawatt.