||The Nutrena USEA American Eventing Championships (AEC) presented by VTO Saddlery is the annual national championships for every level of the Olympic equestrian sport of eventing from Beginner Novice to Advanced. The 2014 AEC will be held in Tyler, TX from September 25-28 at the Texas Rose Horse Park. The event will feature a trade fair with apparel, horse tack, food, fun, and more! Come on out an enjoy a day in the country watching some of the best horses in the country compete, from Olympians to cute young riders. The AEC has it all!