The modern WEG runs over two weeks and, like the Olympics, the location rotates to different parts of the world.
Riders and horses competing at WEG go through a rigorous selection process, and each participating country sends teams that have distinguished themselves through competition as the nation's best in each respective discipline.
The WEG gradually expanded to include eight of the FEI's ten disciplines: combined driving, dressage, endurance riding, eventing, paraequestrianism, reining, show jumping, and vaulting.
The FEI's two remaining regional disciplines,[1][2] horseball[3] and tent pegging,[4] still conduct independent championships.
The 2010 FEI World Equestrian Games in Lexington, Kentucky marked a series of firsts in WEG history: the first time WEG were held outside Europe; the first time that championships for eight FEI disciplines were held at one location (the Kentucky Horse Park); and the first time WEG had a title sponsor (in this case the animal health and nutrition group corporation Alltech, headquartered in the nearby city of Nicholasville).