ESPN.com just put up a nice article on the National Championship Chuck Wagon races in Clinton
by Sam Eifling, a regular contributor to our A&E section. (JM Associates, the Little Rock-based production company, produces all the web content for ESPN.com's Outdoors section.)
The wagons must weigh a half-ton apiece, and there's no restriction on the size of the horses, of which there are four per team. The spectacle is not only in the improbability of it — four wagons and a total of 20 horses running like hell at their heels, 10 times in quick succession — but the tension of watching those outriders. To mount a horse and guide it around the barrel at the starting gun is quite a trick, it turns out, and many nullify their wagon teams' runs by finishing late. Or not at all.