AQHA World Championship Show Saturday, November 3, 2018 8:00 AM 8:00 PM 08:00 20:00 State Fair Park 3001 General Pershing Boulevard Oklahoma City, OK, 73107 United States (map) Google Calendar ICS Dr. Hartfield will be sponsoring the Mutton Bustin’ Event at the annual American Quarter Horse Association World Championships. She will be signing autographs at their trade show booth from 2-7 pm. The Mutton Bustin’ starts at 7 pm!