4-H representatives from 22 Mississippi counties in Northeast Mississippi, ages eight to 18, are competing in a variety of equestrian events at the Mississippi Horse Park through Saturday as part of the 4-H District Horse Show. The show is free and open to the public with competitions in equestrian speed, skill, and style, including judging, saddle and gaited events, racking horses, hunter events, pole bending, barrel racing, and stake races. For full schedule, call the Horse Park event information line at 325-0508.