Glennwood Farm, operated by John D. Gunther and his daughter Tanya Gunther, reached the pinnacle of Thoroughbred racing when its fields produced unbeaten Triple Crown winner Justify. The Scat Daddy colt, whom Gunther sold for $500,000 as a Keeneland September yearling, also is out of a Glennwood homebred, the Grade 3-placed Ghostzapper mare Stage Magic.