GI Santa Anita Derby winner STRONGHOLD (Ghostzapper) supervises as his rider, Tony Guiterez, updates the Phil D’Amato barn sign to 1️⃣9️⃣ Grade I winners, courtesy of his phenomenal win Saturday! 🏆 Video courtesy of assistant trainer jwitt28 🎥 #stronghold #santaanitaderby #derby #santaanita #santaanitapark #santaanitaracetrack #california #horseracing #racehorse #ghostzapper #thoroughbred #thoroughbreds #thoroughbredsofinstagram #horse #horses #equine #equestrian #equestrianlife #horselove #lovehorses #horsebackriding #horseriding #kentuckyderby #churchilldowns #triplecrown #cutehorse #bayhorse #bay #curious #gradeone