BUILT FORD TOUGH AQHYA WORLD CHAMPIONSHIP SHOW - The Built Ford Tough AQHYA World Championship Show is the pinnacle event for American Quarter Horse exhibitors, ages 18 and under, around the world. Participants must qualify for the event by earning a predetermined number of points, or through their respective AQHYA Affiliate , to compete in one of the 34 classes representing halter, English and western disciplines. Specific rules for the AQHYA World Championship can be found at aqha.com.